20 Best Large Agate Stone [2024]

Are you looking for the best Large Agate Stone? Based on expert reviews, we ranked them. We've listed our top-ranked picks, including the top-selling Large Agate Stone.

We Recommended:

# Preview Product
1 MIMOSA Irregular Polished Labradorite Palm Stones,Banded Agate,Floral Agate[3PCS] MIMOSA Irregular Polished Labradorite Palm Stones,Banded Agate,Floral Agate[3PCS]
2 Lpraer Agate Knobs for Dresser Drawers Set of 6 Agate Stone Wardrobe Pull Handles with Mounting... Lpraer Agate Knobs for Dresser Drawers Set of 6 Agate Stone Wardrobe Pull Handles with Mounting...
3 American West Sterling Silver Women's Ring Black Agate Gemstone 3-Stone Design Size 8 American West Sterling Silver Women's Ring Black Agate Gemstone 3-Stone Design Size 8
4 June&Ann Blue Agate Palm Stones Healing Gemstone Therapy Worry Crystal Stones for Meditation Chakra... June&Ann Blue Agate Palm Stones Healing Gemstone Therapy Worry Crystal Stones for Meditation...
5 Rockcloud Irregular Polished Banded Agate Palm Stones Worry Stones Pebble Healing Crystal with... Rockcloud Irregular Polished Banded Agate Palm Stones Worry Stones Pebble Healing Crystal with...
6 ESDOT iPhone 13 Pro Max Case with Built-in Screen Protector,Military Grade Cover with Fashion... ESDOT iPhone 13 Pro Max Case with Built-in Screen Protector,Military Grade Cover with Fashion...
7 UFEEL Banded Agate Palm Stone Crystal - Natural Chakra Reiki Polished Healing Oval Pocket Worry... UFEEL Banded Agate Palm Stone Crystal - Natural Chakra Reiki Polished Healing Oval Pocket Worry...
8 16 Pieces Polished Agate Slices Drilled Agate Pendants Natural Agate Stone Slices Colorful Irregular... 16 Pieces Polished Agate Slices Drilled Agate Pendants Natural Agate Stone Slices Colorful...
9 BEADNOVA Healing Crystal Necklace for Women Men Synthetic Blue Banded Agate Crystal Pendant Energy... BEADNOVA Healing Crystal Necklace for Women Men Synthetic Blue Banded Agate Crystal Pendant...
10 FOLKOR LIFE Natural Agate Coasters for Drinks, Geode Stone Coasters Agate Slices Set of 4 Gemstone... FOLKOR LIFE Natural Agate Coasters for Drinks, Geode Stone Coasters Agate Slices Set of 4...
11 Wow Blue Lace Agate Tumbled Stone 100 Grams Approx. 0.75' to 1'inch Genuine w/Velvet Pouch Image is... Wow Blue Lace Agate Tumbled Stone 100 Grams Approx. 0.75" to 1"inch Genuine w/Velvet Pouch Image...
12 Natural Indian Agate Stones Endless Necklace Long Beaded Handmade Knotted Jewelry for Women Natural Indian Agate Stones Endless Necklace Long Beaded Handmade Knotted Jewelry for Women
13 Nature's Decorations - Luxury Blue Agate Bookends - Set of 2 Non-Skid Bookends - Vintage & Natural... Nature's Decorations - Luxury Blue Agate Bookends - Set of 2 Non-Skid Bookends - Vintage &...
14 BedRock Blue Agate Coasters for Drinks - Set of 4 - Brazilian Geode Decor - (4'-4.5' Blue) BedRock Blue Agate Coasters for Drinks - Set of 4 - Brazilian Geode Decor - (4"-4.5" Blue)
15 WHITESTONE JEWELRY CO. Pistachio Pear Light Green Agate Stone Band Ring, Stackable, (Size 7) WHITESTONE JEWELRY CO. Pistachio Pear Light Green Agate Stone Band Ring, Stackable, (Size 7)
16 45-46pcs 6mm Natural Indian Agate Gemstone Beads Smooth Round Loose Spacer Beads for Jewelry Making... 45-46pcs 6mm Natural Indian Agate Gemstone Beads Smooth Round Loose Spacer Beads for Jewelry...
17 Creative Co-Op Decorative Agate Stone Slice on Metal Stand, Natural (Size and Shape will Vary) Creative Co-Op Decorative Agate Stone Slice on Metal Stand, Natural (Size and Shape will Vary)
18 American West Sterling Silver Black Agate Gemstone Three Stone Friendship Cuff Bracelet Size Small American West Sterling Silver Black Agate Gemstone Three Stone Friendship Cuff Bracelet Size Small
19 Madison Park Genuine Agate Wall Art Living Room Décor - Glass Framed 4 Inch Real Geode Stone Modern... Madison Park Genuine Agate Wall Art Living Room Décor - Glass Framed 4 Inch Real Geode Stone...
20 mookaitedecor Polished Agate Light Table Slices,Geode Agate Slab Cards Pack of 12 mookaitedecor Polished Agate Light Table Slices,Geode Agate Slab Cards Pack of 12
Bestseller No. 1
MIMOSA Irregular Polished Labradorite Palm Stones,Banded Agate,Floral Agate[3PCS]
  • Package Content: 1x Labradorite (80 Grams or More), 1 x Floral agate(80 Grams or More) , 1xBanded Agate(40 Grams or More), 1 x Velvet Jewelry Pouch,...
  • Natural and Beautiful: Small Cracks and Fissures Occur Naturally in Stone During Mother Nature's Process of Creating and Cooling within the Earth. At...
  • Authentic and Premium: We Are Responsible for Recording Stones under Natural Light as Faithfully as Possible, and Make Multiple Quality Checks Based...
  • Professional: Each Stone Is Individually Packaged to Avoid Collision. They Are Tumbled-polished in Their Natural Form for Meditation, Alter and Home...
  • Excellent Gift Enjoyable for You and Your Loved One.
Bestseller No. 2
Lpraer Agate Knobs for Dresser Drawers Set of 6 Agate Stone Wardrobe Pull Handles with Mounting...
  • 【Unique Design】Made of high quality natural agate with smooth edges, it is friendly for daily using like common drawer pull handle. Adding a right...
  • 【Natural Stone】Each cabinet knob has a unique surface grain, different size, shape, color, thickness, transparency, and characteristics. Each...
  • 【Easy to Install and Disassemble】Each knob is delivered with 2 different size screws, one screw is 2.5cm long (suitable for cabinet door thickness...
  • 【Wide Application】Apply to cabinet pulls, cabinet handles, dresser knobs, furniture hardware, cupboard handles, kitchen knobs, cabinet knobs, door...
  • 【Package Includes】6 x Agate Cabinet Pulls, 12 x Screws, 1 x Box.
SaleBestseller No. 3
American West Sterling Silver Women's Ring Black Agate Gemstone 3-Stone Design Size 8
  • Beautiful Western Jewelry- Naturally colorful Southwestern sterling silver ring designed by Carolyn Pollack features an oval-shaped 5x7mm black Agate...
  • Details- This ring measures 3/8 inch wide.
  • Jewelry Gift- Handmade jewelry for Birthday, Anniversary, Wedding, Graduation, Christmas, Valentines, Mother’s Day or any occasion. Indulge your...
  • Authentic Southwestern Jewelry – That capture the lifestyle and history of the Southwest. Our exclusive artisanal jewelry is handmade of 92.5%...
  • Buy with Confidence – We know you will love our jewelry! If for any reason you are not happy with your choice; we will honor our 100% money back no...
Bestseller No. 4
June&Ann Blue Agate Palm Stones Healing Gemstone Therapy Worry Crystal Stones for Meditation Chakra...
  • IRREGULAR SHAPE BLUE AGATE - Hand carved of gemstones, this irregular shape agate stone is polished and smooth, carvings may slightly vary in size,...
  • PERFECT POCKET STONES - Each palm stone is about 1-3/4 to 2-3/4 inches in length, 1-1/2 to 2-2/5 inches in width, 3/4 to 2 inches in thickness, weight...
  • 100% NATURAL UNIQUE GEMSTONE - 100% Natural, size and shape even the color vary from picture shown. You'll get one similar as each stone is unique and...
  • BEST HEALING STONES - Palm Stones can be used as Healing Stones, best for healing, positive energy, reiki, meditation, peace of mind, perfect for...
  • MULTIFUNCTIONAL APPLICATION - Each stone is carefully selected, great for jewelry making, home décor, collecting, feng shui, reiki, chakra,...
Bestseller No. 5
Rockcloud Irregular Polished Banded Agate Palm Stones Worry Stones Pebble Healing Crystal with...
  • 1 PC Irregular Polished Banded Agate Worry Pebble Stones,Hand Carved,Super Smooth,100% Natural,Size and Shape even the Color vary from picture...
  • Pocket Stones--Weights 2.6 ounces/piece;Approx:1.7-2.8"(45-70mm).Fit easily in a pocket,perfect to hold in hands,daily carry,wrap,place in grids or...
  • Polished Stones--Smooth and feel great to hold in your hand for relaxation or anxiety relief.Enhance meditation,aid in healing the mind,body and...
  • Banded Agate activates the Root/Base Chakra, Sacral Chakra, and Earth Chakra. It is a grounding stone that aids in centering, harmonizing yin and...
  • Best Gift Choice--Comes with a beautiful black velvet gift bags.Oval worry stones make very special personal gifts.Arrive to someone full of positive...
Bestseller No. 6
ESDOT iPhone 13 Pro Max Case with Built-in Screen Protector,Military Grade Cover with Fashion...
  • Build-in Screen Protector: Esdot iPhone 13 Pro Max case come with a solid front frame, combing a sensitive built-in screen protector to prevent your...
  • Slim & Elegant Design: This phone case is lightweight, slim, and easy to grip, with fashionable design adds extra style to it. Perfect gift for any...
  • Camera & Screen Protection: Raised lip of the camera and screen to relieves impact and protects your phone screen against drops & cracks & surface...
  • Support wireless charging, you can just play your phone 13 Pro Max with it on a wireless charger to charging perfectly.
  • Lifetime Warranty: If you have any question, please just contact us here, we will solve your problem within 24 hours until you satisfied.
SaleBestseller No. 7
UFEEL Banded Agate Palm Stone Crystal - Natural Chakra Reiki Polished Healing Oval Pocket Worry...
  • Banded Agate Palm Stone: Palm stones are designed to fit into the palm of your hand and have a lovely tactile shape and they are polished oval stones...
  • High Quality Material: Palm stone is carved from 100% Natural Labradorite Stone. This is a beautiful pocket stone that they fit perfectly into the...
  • Stone Size: approx:1.5"-2.5" (Stones shown are for illustration only to demonstrate variation in appearance - color, shape, size, etc. Stones supplied...
  • Multifunction: There are many great uses for palm stones, perfect for gift giving, great option for stress relief, hold while meditating, use as...
  • RISK FREE GUARANTEE: Our worry stone come with a “No questions asked” manufacturer 93-Day Money Back Guarantee AND a Lifetime Warranty. Give it a...
Bestseller No. 8
16 Pieces Polished Agate Slices Drilled Agate Pendants Natural Agate Stone Slices Colorful Irregular...
  • Note: due to natural material, each agate slice is different and may vary in size, shape, patterns and colors from the one shown in the picture, and...
  • Package includes: there are 16 pieces of polished agate slices, available in classic colors; The size details are shown in the picture; Enough...
  • Stylish drilled agate slices: these drilled agate slices are made of agate stone, smooth and cool to touch; Each slice is irregular in shape, with a...
  • Delicate gift choice: these colorful agate slices are a nice present for mother, father, him, her, man, woman, party, housewarming, New Year,...
  • Wide uses: these irregular agate slices are suitable for home decor, office decor, desk ornament, wedding decor, place cards, photo frame, cabinet...
SaleBestseller No. 9
BEADNOVA Healing Crystal Necklace for Women Men Synthetic Blue Banded Agate Crystal Pendant Energy...
  • ENERGY HEALING CRYSTAL: Well-crafted in 6 faceted gemstones crystal. Each spiritual colored energy healing crystal is strongly connected with a...
  • SIZES: Crystal Hexagonal natural Synthetic Blue Banded Agate pendant size is measured in 62mm x 9mm with 18” necklace chain. Perfect sizes as...
  • HYPOALLERGENIC MATERIAL: The neckace chain of chakra stone is made of Surgical Stainless Steel which is Hypoallergenic, Lead-Free, Nickel-Free and...
  • IDEAL GIFT CHOICE: Healing crystal necklace is an ideal gift choice during Christmas Day, Anniversary Day, Valentine's Day, Mother's Day, Father's Day...
  • BENEFITS: Agate is said to encourage a sense of reality and pragmatic thinking. It also claimed to soothe those who desire peace and harmony.
Bestseller No. 10
FOLKOR LIFE Natural Agate Coasters for Drinks, Geode Stone Coasters Agate Slices Set of 4 Gemstone...
  • Unique Craft from Nature - Natural agate coasters (0.23”thick) were sliced from rough Brazilian agate gemstone and have obvious differences in...
  • Multiple Occasions Used - Awesome agate coasters for coffee mugs, glasses, tea cups or any other kinds of glassware or dinnerware to better enjoy...
  • Protective Rubber Bumpers - Totally 50 anti-skid rubber bumpers included in the coaster set. Fix 4 pieces on the bottom of each agate coaster to...
  • How to Care - Agate coasters are not water absorbent. Considering they are natural stones from the nature, don’t throw them around or drop from a...
  • Refund Policy Guarantee - Though each set may be a little different from product pictures, the coasters you get will be the only one in the world. If...
Bestseller No. 11
Wow Blue Lace Agate Tumbled Stone 100 Grams Approx. 0.75" to 1"inch Genuine w/Velvet Pouch Image is...
  • Handcrafted Product - Minor Deviations Applicable Compared to The Image Shown; However, Healing Qualities Are EXCELLENT. Approx. 0.75" to 1"inch with...
  • IMAGE IS JUST A REFERENCE Blue lace agate is one of the rarest and most popular of the agates. This is a calming, uplifting stone. The blue color...
  • Please note that at times the sizes of stones may vary but the metaphysical properties of combined effect is excellent. Use is once, use it always.
  • Many people collect tumbled stones, crystals and gems because of their metaphysical properties and the multiple ways they can be used. Some simply...
  • When using tumbled stones and crystals in your environment, the easiest thing is to pick some stones that you feel drawn to and place them around your...
Bestseller No. 12
Natural Indian Agate Stones Endless Necklace Long Beaded Handmade Knotted Jewelry for Women
  • The stylish beach necklace features natural Indian agate stones and durable gray cotton thread imported from Japan. These 8 mm multicolor Indian agate...
  • Our handmade agate endless necklace mainly shows the young and energy of women. Although the bohemian necklace is in simple design, it has careful...
  • The natural gemstone necklace is suitable for most of ages. It helps you to be an eye-catching person. You can wear it in daily life, party,...
  • Indian agate stones are a kind of semiprecious which represent tranquility and healing. It encourages physical, spiritual and emotional healing to...
  • This women’s agate necklace will be come in a cloth bag, perfect for keeping safe. We also guarantee all handmade Indian agates are in high quality....
Bestseller No. 13
Nature's Decorations - Luxury Blue Agate Bookends - Set of 2 Non-Skid Bookends - Vintage & Natural...
  • Made from Natural stone. The face of each bookend has been polished smooth and back retains the natural rough crust, concave and convex. Unique...
  • Natural Stone promotes courage and self-confidence while dissipating fear.Working with Stone is said to enhance one's perceptiveness, analytical...
  • Natural texture and simple fashion design,reflecting the simple and generous. Ideal for home or office décor, collection and as a gift.
  • Extra Quality: Hand Chosen for Pattern, Symmetry and Color Definition.Excellent for Balancing Emotional and Physical Energy.
  • Ideal for home or office supplies, collected and presented as a gift. For example - wedding gifts, gifts to friends and relatives, home...
Bestseller No. 14
BedRock Blue Agate Coasters for Drinks - Set of 4 - Brazilian Geode Decor - (4"-4.5" Blue)
  • AGATE STONE COASTERS ARE A NATURAL BEAUTY: Carved from Geode Rocks, Agate Slices are crafted into beautiful Stone Coaster arrangements. The unique...
  • GEODE COASTERS WILL COMPLIMENT ANY BEVERAGE: Enjoy your beverage with Nature Inspired Drink Coasters. Whether it's a cocktail party, dinner party, or...
  • BRIGHTEN UP YOUR HOME WITH AGATE SLICES : For thousands of years Agate's bright colors have been sought out by royalty to make Jewelry and Home...
  • GEODES MAKE AN EXCELLENT CONVERSATION PIECE: Agates are a true wonder of the world. When a Volcano Erupts and Molten Lava freezes stunning Geodes are...
  • TRUE AGATE COASTERS - differ from pictures? Nature has created each stone to be exactly what it should, and each piece is just as unique and beautiful...
Bestseller No. 15
WHITESTONE JEWELRY CO. Pistachio Pear Light Green Agate Stone Band Ring, Stackable, (Size 7)
  • ONE LIGHT GREEN STONE RING.
  • STACKABLE: Our complementary colors are great for stacking together or with a gold or silver ring. Visit our Amazon Store for photos of some of our...
  • STRENGTH AND QUALITY: Does not catch against clothes, roll off finger, stretch out over time, or cause allergic reactions like silicone rubber or...
  • SMALL AND LARGE SIZES: 5 - 14 US is available across our rings. Width of bands is 0.25 inches (5-6 mm). Width for size 8 and up is 0.25 - 0.40 inches...
  • GIFT ENVELOPE INCLUDED: Each rings comes packaged in a gift envelope. We ship within one business day from our headquarters in San Diego or an Amazon...
Bestseller No. 16
45-46pcs 6mm Natural Indian Agate Gemstone Beads Smooth Round Loose Spacer Beads for Jewelry Making...
  • 【Material】: Genuine Natural Indian Agate Gemstones ,Round Loose Stone Beads,Energy Stone Healing Power,Help activate the mind
  • 【Size】6mm/8mm/10mm/12mm; Hole Diameter: 0.8mm-1.2mm
  • 【Effect】Real Smooth Natural Round Stone Beads,Natural Color. Natural stone beads can help you balance your mood and relax yourself. Good for your...
  • 【Application】These beads are excellent for beading, DIY jewelry making, DIY gifts design, necklaces, bracelets, yoga bracelets, earrings, ring etc
  • 【Note】: Our natural stone beads are all unique. Bring the natural beauty into life with your DIY project! *Please note some imperfections and...
SaleBestseller No. 17
Creative Co-Op Decorative Agate Stone Slice on Metal Stand, Natural (Size and Shape will Vary)
  • Natural swirling designs will complement the other colors in your room décor
  • Gold stand holds the agate up for a pleasing visual experience
  • Because these are a work of nature, each one will vary in size and shape
  • Can be place on a table or shelf as added décor to any room
  • Agate measures 4" W x 6.75" H
Bestseller No. 18
American West Sterling Silver Black Agate Gemstone Three Stone Friendship Cuff Bracelet Size Small
  • Beautiful Western Jewelry - Add a pop of color with this Southwest-inspired beautiful sterling silver cuff bracelet that features three oval black...
  • Details – The size Small for this exclusive bracelet fits wrists 6 to 6-1/2 inches and can be adjusted slightly.
  • Jewelry Gift- Handmade jewelry for Birthday, Anniversary, Graduation, Christmas, Valentines, Mother’s Day or any occasion. Indulge your mom,...
  • FORGED ON THE AMERICAN FRONTIER – We’ve been creating jewelry with social responsibility and environmentally friendly ways since 1975, and we’re...
  • Buy with Confidence - We are sure you will love our jewelry, and if for any reason you are not happy with your choice, we will honor our 100% money...
SaleBestseller No. 19
Madison Park Genuine Agate Wall Art Living Room Décor - Glass Framed 4 Inch Real Geode Stone Modern...
  • 34"W x 13"H x 1.25"D
  • Product Features - High quality 100% real 3 agate stones come in glass framed panel.(Color variations may occur from the image due to the natural...
  • Lifestyle - Modern classic beautiful natural agate stones will create the perfect accent for your living space
  • Placement - This wallart has a flexible placement, perefect in semi-formal setting to accent your home office, wall art for living room
  • Clean - Spot clean only do not use bleach or any harsh chemical solution to maintain original color quality
SaleBestseller No. 20
mookaitedecor Polished Agate Light Table Slices,Geode Agate Slab Cards Pack of 12
  • Pack of 12 pcs agate slices, measures approx 1.2-3 inches(30-80mm) in length, 0.78-2 inches(20-50mm) in wide, 0.2 inches(5mm) in thickness.Weights...
  • This is agate slab polished (both sides) slice. This agate is dyed in fantastic colors to give the stone more visual appeal and interest. When a stone...
  • Agate is a good grounding stone, and has a strengthening and stabilizing energy that will help you in your daily tasks. It keeps you energized and...
  • These blank agate place cards will match almost any event decor, they are beautiful display pieces that can be placed any where in the home.They also...
  • Comes with a velvet pouch,a wonderful gifts for you,your families and your friends,they can be placed home,office,carry in pocket or anywhere to...

Having trouble finding a great Large Agate Stone?

This problem is well understood by us because we have gone through the entire Large Agate Stone research process ourselves, which is why we have put together a comprehensive list of the best Large Agate Stones available in the market today.

After hours of searching and using all the models on the market, we have found the best Large Agate Stone for 2023. See our ranking below!

How Do You Buy The Best Large Agate Stone?

Do you get stressed out thinking about shopping for a great Large Agate Stone? Do doubts keep creeping into your mind?

We understand, because we’ve already gone through the whole process of researching Large Agate Stone, which is why we have assembled a comprehensive list of the greatest Large Agate Stone available in the current market. We’ve also come up with a list of questions that you probably have yourself.

John Harvards has done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for Large Agate Stone that you consider buying. Your questions might include the following:

  • Is it worth buying an Large Agate Stone?
  • What benefits are there with buying an Large Agate Stone?
  • What factors deserve consideration when shopping for an effective Large Agate Stone?
  • Why is it crucial to invest in any Large Agate Stone, much less the best one?
  • Which Large Agate Stone are good in the current market?
  • Where can you find information like this about Large Agate Stone?

We’re convinced that you likely have far more questions than just these regarding Large Agate Stone, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for Large Agate Stone, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible Large Agate Stone. Make sure that you are only using trustworthy and credible websites and sources.

John Harvards provides an Large Agate Stone buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information.

How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available Large Agate Stone currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

  1. Brand Value: Every brand of Large Agate Stone has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features: What bells and whistles matter for an Large Agate Stone?
  3. Specifications: How powerful they are can be measured.
  4. Product Value: This simply is how much bang for the buck you get from your Large Agate Stone.
  5. Customer Ratings: Number ratings grade Large Agate Stone objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their Large Agate Stone.
  7. Product Quality: You don’t always get what you pay for with an Large Agate Stone, sometimes less, and sometimes more.
  8. Product Reliability: How sturdy and durable an Large Agate Stone is should be an indication of how long it will work out for you.

John Harvards always remembers that maintaining Large Agate Stone information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

If you think that anything we present here regarding Large Agate Stone is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly!

Related Post:

FAQ:

Q: Is Agate a rock or a mineral?

A: Agate is a sedimentary silica-rich rock composed of the mineral ” chalcedony ,” which is a term generally referring to the fibrous growth of quartz; as well as more common forms of quartz.

Q: Where to buy agate rocks?

A: – Eagle Rock – where you can find moss and dendritic agate as well as rhyolite and different types of chalcedony. A hammer and chisel might come in handy here. – Fischer Canyon – where you’ll not only find agate but also jasper and petrified wood. – Maury Mountains – famous for its variety of moss agates (that come in different colors). … – North Ochoco Reservoir – which mainly offers agate and jasper. A hike is required to get there and tools (e.g. rock hammer) may be necessary.

Q: Where are agate rocks found?

A: Agate is found throughout the world. In the United States it is produced in several western states; Oregon, Washington, Idaho, and Montana are the chief sources of gemstones. Most agates occur in cavities in eruptive rocks or ancient lavas.

Q: What is the luster of agate?

A: Agate is, in fact, identical with quartz in composition and physical properties. Composed of silicon dioxide (SiO2), it has a hardness of 7, a glassy luster, a conchoidal fracture, and a specific gravity of 2.60. Most agates occur in cavities of eruptive rocks or ancient lavas.