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Calcite
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4.6" Mango Quartz Crystal Cluster - Cabiche, Colombia
$795
4.6" Metallic, Needle-Like Pyrolusite Crystals - Morocco
$12
2.25" Nailhead Spar Calcite after Dogtooth Calcite - China
$35
1.9" Nailhead Spar Calcite after Dogtooth Calcite - China
$25
2.2" Nailhead Spar Calcite after Dogtooth Calcite - China
$29
4.6" Hematite Quartz, Chalcopyrite and Pyrite Association - China
$135
4.6" Cut & Polished Ammonite Fossil (Half) - Madagascar
$29
4.6" Vibrant, Iridescent Hematite After Goethite Formation - Georgia
$295
4.6" Polished Hematite (Harlequin) Quartz Heart - Madagascar
$45
3.7" Golden-Yellow Calcite Crystal - Morocco
$12
3" Golden Calcite Crystals - Morocco
$15
6.0" Fluorescent Calcite Crystal Cluster - Morocco
$35
10.75" Fluorescent Calcite Crystal Cluster - Morocco
$149
4.25" Fluorescent Calcite Crystal Cluster - Morocco
$32
6.65" Fluorescent Calcite Crystal Cluster - Morocco
$79
3.7" Golden-Yellow Calcite Crystal - Morocco
$12
3.4" Golden-Yellow Calcite Crystal - Morocco
$12
4.9" Golden, Calcite Crystal - Morocco
$15
4.6" Green Prehnite Crystal Cluster - Morocco
$25
4.6" Calcite Crystals Coated With Purple (Yttrofluorite?) Fluorite
$99
4.6" Polished, Free-Standing Dumortierite With Quartz - Madagascar
$59
4.6" Fossil Clam (Mercenaria) - Ruck's Pit, FL
$125
4.6" Polished Banded Agate Nodule Section - Aouli, Morocco
$65
4.6" Polished Lemon Chrysoprase Slab - Western Australia
$35
4.6" Petrified "Peanut Wood" Section - Australia
$59
4.6" Plant Fossil - Green River Formation, Wyoming
$25
$19
3.1" Sunset Phantom Quartz Crystal Cluster - India
$295
$200
4.6" Polished Schalenblende Slice - Poland
$115
3.9" Yellow, Calcite Crystal - Morocco
$15
4.6" Cactus Quartz (Amethyst) Crystal Cluster - South Africa
$115
4.6" Free-Standing, Amethyst Crystal Cluster - Uruguay
$49
4.6" Free-Standing, Amethyst Crystal Cluster - Uruguay
$59
1.6" Sunset Phantom Quartz Crystal Cluster - India
$15
4.6" Polished Cruentus Agate Section - Kerrouchen, Morocco
$75
4.6" Large, Mutli-Toned Pedinopariops Trilobite - Mrakib, Morocco
$395
2.4" Fluorescent Calcite Crystal Cluster - Morocco
$12
4.6" Polished, Crystal Filled Septarian Nodule - Utah
$195
4.6" Free-Standing, Polished Orca Agate - Madagascar
$39
4.6" Free-Standing, Polished Orca Agate - Madagascar
$29
4.6" Purple Cube-Dodecahedron Fluorite on Sparkling Quartz - China
$349
4.6" Polished Banded "Island Agate" Section - South Pacific
$99
3.7" Sunset Phantom Quartz Crystal - India
$195
2.9" Sunset Phantom Quartz Crystal - India
$89
4.6" Polished Pink Marble Sphere on Stand - Mexico
$75
4.6" Demantoid Garnets In Serpentine Matrix - Italy
$99
4.6" Jurassic Ammonite (Stephanoceras) Fossil - England
$195
4.6" Polished Vibrant Greeen Variscite - Goscoyne, Australia
$89
4.6" Chatoyant, Polished Pietersite Slab - Arizona
$99
4.6" Devonian Lobe-Finned Fish (Osteolepis) Fossil - Scotland
$275
4.6" Polished Laguna Agate Slice - Mexico
$135
1.95" Sparkling Druzy Quartz and Calcite on Basalt - India
$22
2.2" Tabular, Yellow-Brown Barite Crystal Cluster - Morocco
$5
9" Fluorescent Calcite Crystal Cluster - Morocco
$99
2.2" Rosasite, Selenite and Ferroan Dolomite Association - Morocco
$15
2.35" Amethyst, Calcite and Chabazite in Basalt - India
$29
2.4" Golden Calcite Crystal - Morocco
$12
3.9" Polished Septarian Egg with Stand - Madagascar
$59
3.9" Polished Septarian Egg with Stand - Madagascar
$59
3.9" Polished Septarian Egg with Stand - Madagascar
$59
4.4" Polished Septarian Egg with Stand - Madagascar
$49