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River Tumbled AGATE GEODE Rough * Top Tumbling Geodes Nodules from Brazil
$2.55 to $127.50
1.5 ft PYRAMID GEODE Slab * 18x12x1.5" - 21.5 Lbs * Natural Color * Brazil
$381.00
BIRTHSTONE AMETHYST Geode Clusters * Choose EXACT 4-5" Brazil Gemstone
$34.51
Extra LARGE AMETHYST GEODE Slab * 14x9x2" - 16 Lbs * Natural Purple Color Brazil
$540.91
Large Quartz Crystal GEODE Slab * Earth Tones * 15x11x2" - 27.4 Lbs * Brazil
$777.75
Extra Large APOPHYLLITE Crystal Mineral Specimen * Deccan Trap, India * 10x6x5"
$72.25
All items
Large PSILOMELANE Mineral Specimens * Manganese Ore Mineral * Choose EXACT One!
$20.00 to $250.00
PETRIFIED WOOD Tumbling Rough * 2" Bulk Natural Raw Fossil Stones U.S.A.
$5.21 to $159.89
Lavic JASPER Tumbling Rough * Excellent Tumbling or Cutting Rough * 7 Dif Sizes
$2.58 to $180.33
River Tumbled AGATE GEODE Rough * Top Tumbling Geodes Nodules from Brazil
$2.55 to $127.50
OBSIDIAN Rough * Choice of Sizes * Natural Black Igneous Knapping Volcanic Glass
$5.95 to $102.59
SNOWFLAKE OBSIDIAN * 3-4" Size * .5-1 Lbs * Black White Volcanic Glass
$17.99
ROSE QUARTZ Crystal Rough * Jewelry Crafts Decor * Mini to 6XL Size
$1.00 to $90.92
Blue AGATE QUARTZ Crystal Geode Slabs Coasters * FREE Stand * Choice of 15 3-6"
$7.17 to $33.18
Bulk Mini .5-1" or Small 1-2" AMETHYST Geode CLUSTERS from Brazil
$2.58 to $124.70
Sand Dollar Matrix Fossil Specimens * Choice of 10 Fossilized Echinoderms * CA
$12.60 to $51.19
Large RAINBOW BORNITE Mineral Specimens * Crazy Bright Colors * Choose EXACT pc
$25.50 to $46.75
BLUE CELESTINE Celestite Crystal * 1-2" Size Madagascar Strontium Fireworks Ore
$10.77
4-5" Brazilian GEODE COASTERS Slabs FREE STAND * Natural Color * Choice of 20
$6.62 to $15.16
IRIDESCENT BORNITE Peacock Ore * 1/2-1"+ Size * 1/2 Lb Lot * 5-10 pcs Copper Ore
$9.66
TUMBLED MAGNETIC HEMATITE * Shiny Large Size Iron Ore Mineral * 5-8 pcs / Lb.
$4.13 to $13.06
Large BLUE CALCITE Crystal Mineral Specimens * 3-7" Size * Choice of 10
$12.00 to $51.93
4" Purple AGATE & QUARTZ Crystal Geode Coasters * FREE Stand * Choose Exact One!
$11.31
1.5 ft PYRAMID GEODE Slab * 18x12x1.5" - 21.5 Lbs * Natural Color * Brazil
$381.00
Foot Long SELENITE Sticks Rods * Cool Natural Gypsum Mineral Specimen Mexico
$16.26
Large Raw BLACK KYANITE Blades Fans * 3-4" Size * Natural Black Gemstone Brazil
$5.95
Druzy FLOWER AMETHYST Geode Clusters * Colorful Quartz w/ Thin Matrix * Brazil
$25.00 to $75.00
1" Jewelry-Grade Ammonites from Morocco * Great for Jewelry Rings Earrings
$5.18 to $70.81
BLUE KYANITE Blades * 1-3" Size * Fine Jewelry Rough or Wire Wrap
$2.58 to $59.50
WHOLESALE AMETHYST GEODE Crystal Clusters * 3-4/lb * Wholesale Discount * Brazil
$8.53 to $389.50
LEPIDOLITE MICA * 1-3" 30/Lb * Natural Purple Pegmatite Rough Mineral * Brazil
$2.55 to $85.00
Extra LARGE AMETHYST GEODE Slab * 14x9x2" - 16 Lbs * Natural Purple Color Brazil
$540.91
1-3" Brilliant Red VANADINITE Crystal Mineral Specimen * Mibladen Mine, Morocco
$8.50
2-3" AZURITE & Malachite Crystal Copper Ore Mineral Specimens * Morocco
$4.24
Natural Quartz CRYSTAL BOOKENDS * Choice of 10 * Medium Size * Brazil
$31.50 to $76.73
Large PETRIFIED WOOD Specimens * Choice of 15 8-12" Rough Fossils from U.S.
$26.38 to $58.22
Extra Large APOPHYLLITE Crystal Mineral Specimen * Deccan Trap, India * 10x6x5"
$72.25
PETRIFIED PALM Slabs * Choice of 10 * Cabbing Lapidary Cutting Rough Slices
$11.26 to $50.97
Large MAHOGANY OBSIDIAN Specimens * Choice of 20 * Natural Volcanic Glass * CA
$12.00 to $50.00
Picasso Marble Slabs for Lapidary, Cabbing, Cabochon Making, Wire Wrap, Jewelry
$17.08 to $48.81
Mini TUMBLED GEMSTONES * 1/2" or 1/4" Sizes * Jewelry Making * 60+/Lb * Brazil
$2.58 to $107.37
1-3" Green PREHNITE Crystal Mineral Specimens * Boulmane Mine, Morocco
$6.88
Large Finely Detailed PETRIFIED WOOD Fossils from Utah * Choose EXACT Specimen
$13.53 to $32.44
4" Red AGATE & QUARTZ Geode Coasters * U Pick * FREE STAND * Brazil
$8.43
Detailed OYSTER SHELL Fossil Specimens * 4-5" Prehistoric Mollusk * California
$13.46
5-7" Natural Color Agate Quartz Crystal GEODE Coasters * FREE STAND * Brazil
$15.84
PETRIFIED PALM Cutting / Tumbling Rough * 4 Sizes or Slabs * Natural Fossil Wood
$5.10 to $127.50
CHALCEDONY DESERT ROSES * 1-2"+ Size * 20-30/Lb * Great 4 Jewelry Wire Wrap
$4.00 to $16.14
Blue AGATE & QUARTZ Crystal Geode Slab Coasters * U Pick * FREE STAND Great Gift
$17.08 to $24.02
5-6" AGATE & QUARTZ Crystal Geode Coasters * Your Choice of 10 * FREE STAND
$4.69 to $21.27
Tumbled GREEN AVENTURINE * Small to Large Sizes * Translucent Brazil Gemstone
$1.14 to $65.08
5-6" AGATE & QUARTZ CRYSTAL Brazil Geode Coasters * FREE STAND * Choice of 10
$22.30 to $34.05
5-7" Agate & Quartz Crystal GEODE BOOKENDS * U Pick from 10 * Brazil
$48.21 to $83.50
5-9" FOSSIL SLABS from Socorro, NM * Choice of 15 * incl Crinoids Coral...
$14.37 to $29.28
About us
Welcome to Rocksology, your go-to destination for gemstones, mineral specimens, geodes, fossils, and crystals! Since 2013, we've been proudly sharing the wonders of the natural world, inspired by our founder, Daryl Keller. A lifelong rockhound, Daryl's passion for geology began in childhood—he even wrote a 20-page “book” on the subject in first or second grade, long before spell check was around!
Now based near Joshua Tree, Daryl spends his time uncovering stunning minerals and fossils from new and historic localities. His discoveries continually inspire awe, and he loves sharing their beauty and diversity with others.
Explore our ever-growing collection here: https://www.ebay.com/str/rocksology
We’re always adding fresh finds, so check back often. Thanks for stopping by, and we hope you discover something you’ll treasure!
Now based near Joshua Tree, Daryl spends his time uncovering stunning minerals and fossils from new and historic localities. His discoveries continually inspire awe, and he loves sharing their beauty and diversity with others.
Explore our ever-growing collection here: https://www.ebay.com/str/rocksology
We’re always adding fresh finds, so check back often. Thanks for stopping by, and we hope you discover something you’ll treasure!
Seller feedback (302)
- i***t (5040)- Feedback left by buyer.Past 6 monthsVerified purchaseItem was well packaged and arrived in excellent condition. Item was precisely as described in the auction's text. Great transaction! Thank you.
- 7***m (279)- Feedback left by buyer.Past yearVerified purchaseThese Blue Agate/Quartz Crystal Geode Bookends are even more beautiful than the photo reveals. The crystal patterns are delicate and detailed, with highlights that change in response to light. The seller packaged the bookends carefully, and the mail delivery was prompt. The seller also included a lovely amethyst geode as a gift and offered a discount on a future order!!
- r***l (276)- Feedback left by buyer.Past 6 monthsVerified purchaseItem as described. Well packaged. Prompt shipping and on time arrival. Receommended.
- e***7 (3)- Feedback left by buyer.Past yearVerified purchaseItem received as described. Made a mistake in checkout and seller was very kind and understanding with good response time!
- d***5 (6350)- Feedback left by buyer.Past 6 monthsVerified purchaseNice mineral specimen. Good packaging and fast shipping. Super seller. Thanks.
- 9***w (20)- Feedback left by buyer.Past 6 monthsVerified purchaseBeautiful pieces. Very happy with purchase. 💯 % recommend this seller! Good communication and an added bonus free gifts pictured.