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Calcite
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4.4" Tessin Habit Smoky Quartz Crystal - Nigeria
$85
4.4" Polished Septarian Egg with Stand - Madagascar
$49
4.4" Polished Cruentus Agate Section - Kerrouchen, Morocco
$59
3.7" Amethyst Crystal Cluster - Georgia
$59
4.4" Quartz Encrusted Yellow Fluorite With Galena - Morocco
$49
3.7" Golden-Yellow Calcite Crystal - Morocco
$12
3.4" Golden-Yellow Calcite Crystal - Morocco
$12
4.4" Colorful Carnelian Agate Heart
$35
4.4" Polished Blue Calcite Sphere - Madagascar
$59
4.4" Free-Standing, Amethyst Crystal Cluster - Uruguay
$79
14" Dark Smoky Quartz Crystal With Metal Stand - Giant Point
$795
4.9" Golden, Calcite Crystal - Morocco
$15
3.7" Golden-Yellow Calcite Crystal - Morocco
$12
3" Golden Calcite Crystals - Morocco
$15
4.4" Rainbow Colored Ammolite (Fossil Ammonite Shell) - Alberta
$395
10.2" Polished Hematoid Quartz Flame
$595
8.1" Polished Hematoid Quartz Flame
$275
4.4" Sparkling Quartz Chalcedony Stalactite Formation - India
$25
4.4" Polished Mammoth Molar Slice - South Carolina
$115
4.4" Colorful, Polished Fluorite Slab - China
$25
3.3" Double-Terminated, Tessin Habit Smoky Quartz Crystal - Nigeria
$95
$85
9.1" Double-Terminated, Tessin Habit Smoky Quartz Crystal - Nigeria
$275
5" Double-Terminated, Tessin Habit Smoky Quartz Crystal - Nigeria
$99
16" Huge, Smoky Quartz Crystal on Metal Stand - Brazil
$995
$750
33" Golden-Orange "Citrine" Cathedral Geode - Spectacular Display
$2,950
7.3" Beautiful, Polished Hematoid Quartz Flame
$195
7" Tessin Habit Smoky Quartz Crystal - Nigeria
$195
$150
4.4" Silurian Fossil Crinoid (Scyphocrinites) Lobolith - Morocco
$19
4.4" Free-Standing Red Feldspar and Tourmaline - Madagascar
$33
13" Flower-Like Sandstone Concretion - Pseudo Stromatolite
$125
2.4" Golden Calcite Crystal - Morocco
$12
2.4" Fluorescent Calcite Crystal Cluster - Morocco
$12
3.9" Yellow, Calcite Crystal - Morocco
$15
15.6" Flower-Like Sandstone Concretion - Pseudo Stromatolite
$195
4.4" Fossil Crocodile Dermal Scute - South Carolina
$59
4.4" Polished Triassic Petrified Wood Heart - Madagascar
$49
4.4" Banded Polished Malachite Specimen - DR Congo
$125
4.4" Polished Aluminum Phosphate (Variscite) Section - Australia
$215
21" Amethyst Geode Section with Calcite on Metal Stand - Uruguay
$2,450
3.2" Tessin Habit Smoky Quartz Crystal Cluster - Nigeria
$95
2.2" Golden, Twinned Calcite Crystal - Morocco
$12
2.55" Golden, Twinned Calcite Crystal - Morocco
$15
2.7" Golden, Twinned Calcite Crystal - Morocco
$15
3.4" Golden Calcite Crystal - Morocco
$15
9" Fluorescent Calcite Crystal Cluster - Morocco
$99
Massive, 17.4" Double-Terminated Natural Smoky Quartz Crystal
$1,295
2.25" Brown Calcite Crystal Cluster - Red Dome Mine
$19
5.2" Tessin Habit Smoky Quartz Crystal - Nigeria
$115
11.6" Wide Smoky Quartz Cluster From Brazil
$495
10.3" Striated Colombian Quartz Crystal Cluster - Peña Blanca Mine
$995
5.9" Striated Colombian Quartz Crystal - Peña Blanca Mine
$215
5.1" Striated Colombian Quartz Crystal - Peña Blanca Mine
$175
4.5" Striated Colombian Quartz Crystal Cluster - Peña Blanca Mine
$99
5.3" Striated Colombian Quartz Crystal - Peña Blanca Mine
$195
$145
8.4" Tessin Habit Smoky Quartz Crystal - Nigeria
$285
5" Tessin Habit Smoky Quartz Crystal with Feldspar - Nigeria
$145
3.3" Smoky Quartz Crystal - Nigeria
$35
4.4" Colorful, Cut & Polished Agate Nodule - Kerrouchen, Morocco
$35
Massive, 15" Natural Smoky Quartz Crystal - Brazil
$1,195
1" Yellow Topazolite Garnet Cluster - Mexico
$29