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Calcite
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4.6" Metallic, Needle-Like Pyrolusite Crystals - Morocco
$12
4.6" Polished, Crystal Filled Septarian Nodule - Utah
$195
4.6" Vibrant, Iridescent Hematite After Goethite Formation - Georgia
$295
4.6" Green Prehnite Crystal Cluster - Morocco
$25
2.9" Polished Aragonite Stalactite Slice - Morocco
$5
4.6" Fossil Clam (Mercenaria) - Ruck's Pit, FL
$125
4.6" Polished Petoskey Stone (Fossil Coral) - Michigan
$39
4.6" Hematite Quartz, Chalcopyrite and Pyrite Association - China
$135
4.6" Plant Fossil - Green River Formation, Wyoming
$25
$19
4.6" Demantoid Garnets In Serpentine Matrix - Italy
$99
2.7" Polished Aragonite Stalactite Slice - Morocco
$12
4.6" Cut & Polished Ammonite Fossil (Half) - Madagascar
$29
4.6" Mango Quartz Crystal Cluster - Cabiche, Colombia
$795
4.6" Polished Schalenblende Slice - Poland
$115
4.7" Cave Calcite Stalactite with Fluorescent Calcite - Wenshan Mine
$895
$600
4.6" Large, Mutli-Toned Pedinopariops Trilobite - Mrakib, Morocco
$395
4.6" Polished Lemon Chrysoprase Slab - Western Australia
$35
4.6" Fossil Crinoid Plate (Two Species) - Crawfordsville, Indiana
$325
4.6" Polished Banded Agate Nodule Section - Aouli, Morocco
$65
4.6" Polished Petrified Wood Slab - Sweet Home, Oregon
$25
21" Amethyst Geode Section with Calcite on Metal Stand - Uruguay
$2,450
4.6" Free-Standing, Polished Orca Agate - Madagascar
$39
4.6" Free-Standing, Polished Orca Agate - Madagascar
$29
4.6" Jurassic Ammonite (Stephanoceras) Fossil - England
$195
4.6" Purple Cube-Dodecahedron Fluorite on Sparkling Quartz - China
$349
3.7" Unique, Fluorescent Cave Calcite Formation - Wenshan Mine
$99
2.8" Yellow Cave Calcite (Aragonite) Formation - Peru
$19
4.6" Free-Standing, Amethyst Crystal Cluster - Uruguay
$49
4.6" Polished Hematite (Harlequin) Quartz Heart - Madagascar
$45
4.6" Free-Standing, Amethyst Crystal Cluster - Uruguay
$59
4.3" Cave Calcite Stalactites with Fluorescent Calcite - Wenshan Mine
$195
3.6" Small, Red Vanadinite Crystals on Manganese Oxide - Morocco
$19
3" Small, Red Vanadinite Crystals on Manganese Oxide - Morocco
$29
5.2" Small, Red Vanadinite Crystals on Manganese Oxide - Morocco
$45
2.2" Small, Red Vanadinite Crystals on Manganese Oxide - Morocco
$15
4.6" Polished, Free-Standing Dumortierite With Quartz - Madagascar
$59
12.7" Blue Bladed Barite Crystal Clusters on Calcite - Morocco
$245
4.6" Cretaceous Fish (Spaniodon) With Pos/Neg - Lebanon
$395
Large, 4.6" Polished Petoskey Stone (Fossil Coral) - Michigan
$45
4.6" Horseshoe Crab (Mesolimulus) Fossil - Solnhofen Limestone
$695
4.6" Petrified "Peanut Wood" Section - Australia
$59
4.6" Calcite Crystals Coated With Purple (Yttrofluorite?) Fluorite
$99
4.8" Cave Calcite Stalactite with Fluorescent Calcite - Wenshan Mine
$145
4.6" Polished Vibrant Greeen Variscite - Goscoyne, Australia
$89
4.6" Devonian Lobe-Finned Fish (Osteolepis) Fossil - Scotland
$275
4.6" Polished Laguna Agate Slice - Mexico
$135
4.6" Chatoyant, Polished Pietersite Slab - Arizona
$99
4.6" Polished Banded "Island Agate" Section - South Pacific
$99
10" Sparkling, Amethyst Geode on Metal Stand
$445
8.8" Sparkly Amethyst Quartz Geode With Metal Stand
$375
8.1" Druzy Quartz Formation on Metal Stand
$275
9.1" Green Druzy Quartz Formation With Metal Stand
$245
6.8" Sparkly, Gray Druzy Quartz Geode on Metal Stand
$225
6.8" Sparkling Grey/Purple Quartz Geode With Metal Stand
$145
10.2" Sparkling Druzy Quartz Formation With Metal Stand
$395
$275
2.7" Quartz and Pyrite on Dolomite - Peru
$19
4.35" Quartz and Pyrite Crystal Cluster - Crystals on Crystals!
$39
8.2" Unique, Sparkling Amethyst Formation With Stand - Uruguay
$395
7.5" Sparkly Amethyst Geode Section on Metal Stand
$135
10.2" Unique, Sparkly Quartz Stalactite Formation With Metal Stand
$395