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Calcite
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5.1" Polished Garnetite (Garnet) Tower - Madagascar
$49
5.1" Polished Garnetite (Garnet) Tower - Madagascar
$39
2.2" Polished Purple Passion Agate Slice - Chihuahua, Mexico
$39
5.1" Fibrous Aurichalcite, Hemimorphite, & Calcite Association -Mexico
$19
5.1" Iridescent Ammonite (Deshayesites) Fossil
$295
5.1" Deep Purple Amethyst Geode With Wood Base - Uruguay
$115
5.1" Polished Seraphinite Slab - Korshunovkiy Mine, Siberia
$145
2.7" Free-Standing, Polished Bumblebee Jasper - Indonesia
$25
4.2" Polished Purple Passion Agate Section - Chihuahua, Mexico
$99
5.1" Las Choyas "Coconut" Geode Half with Amethyst - Mexico
$65
2.4" Quartz Crystal Cluster with Epidote Inclusions - China
$45
5.1" Fibrous, Blue Chalcedony Formation - India
$115
$99
5.1" Colorful, Polished Moss Agate Slab - Idaho
$35
5.1" Polished Banded Agate Slab - Kerrouchen, Morocco
$59
3.25" Teal-Blue Amazonite Crystal - Lake George, Colorado
$99
2.05" Teal-Blue Amazonite Crystal - Lake George, Colorado
$59
7.1" Fluorescent Hexagonal Calcite Crystals - China
$295
4.6" Polished Laguna Agate Slice - Mexico
$135
1.75" Intricate Botryoidal Rhodochrosite - Santa Eulalia, Mexico
$19
5.1" Clear Quartz Crystal Cluster - Brazil
$85
3.7" Fluorescent Calcite Crystal Cluster (New Find!) - Potosi Mine
$55
3.75" Fluorescent Calcite Crystal Cluster (New Find!) - Potosi Mine
$55
3" Fluorescent Calcite Crystal (New Find!) - Potosi Mine
$29
3.5" Fluorescent Calcite Crystal Cluster (New Find!) - Potosi Mine
$45
6.3" Highly Fluorescent Calcite Crystal Cluster - Wenshan Mine, China
$495
2" Polished Banded Laguna Agate - Mexico
$55
4.9" Polished Laguna Agate Nodule Half - Mexico
$325
2.6" Fluorite, Calcite and Quartz Association - Cocineras Mine, Mexico
$29
6.3" Selenite Desert Rose on Stand - Chihuahua, Mexico
$75
7.4" Purple Edge Fluorite Crystal Cluster - Qinglong Mine, China
$115
5.9" Polished, Free-Standing Blue Calcite - Madagascar
$59
5.55" Polished, Free-Standing Blue Calcite - Madagascar
$45
5.6" Polished, Free-Standing Blue Calcite - Madagascar
$39
4.2" Polished, Free-Standing Blue Calcite - Madagascar
$25
5.6" Polished, Free-Standing Blue Calcite - Madagascar
$35
5.8" Polished, Free-Standing Blue Calcite - Madagascar
$49
5.1" Fossil Nodosaurid (Denversaurus?) Dinosaur Scute - South Dakota
$995
5.1" Petrified Wood (Sycamore) Slab - Parker, Colorado
$99
3.9" Polished, Free-Standing Green Pistachio Opal - Madagascar
$35
3.6" Polished, Free-Standing Green Pistachio Opal - Madagascar
$25
1.2" Botryoidal Rhodochrosite Formation - Santa Eulalia, Mexico
$25
1.65" Intricate Botryoidal Rhodochrosite - Santa Eulalia, Mexico
$25
1.2" Intricate Botryoidal Rhodochrosite - Santa Eulalia, Mexico
$25
1.5" Pink Botryoidal Rhodochrosite - Santa Eulalia, Mexico
$19
1.95" Polished Purple Charoite Cube with Base - Siberia
$95
1.95" Polished Purple Charoite Cube with Base - Siberia
$95
1.95" Polished Purple Charoite Cube with Base - Siberia
$95
4.2" Free-Standing Crystal Filled Celestine Geode - Madagascar
$65
3" Quartz and Calcite with Metacinnabar Inclusions - Cocineras Mine
$25
2.95" Lustrous Smoky Quartz Crystals on Microcline - Colorado
$69
5.5" Free-Standing, Polished Fuchsite - Madagascar
$35
4.7" Free-Standing, Polished Fuchsite - Madagascar
$29
4.8" Free-Standing, Polished Fuchsite - Madagascar
$29
4.8" Free-Standing, Polished Fuchsite - Madagascar
$29
15.6" Flower-Like Sandstone Concretion - Pseudo Stromatolite
$195
3.8" Free-Standing, Polished Garnetite (Garnet) - Madagascar
$35
4.2" Free-Standing, Polished Garnetite (Garnet) - Madagascar
$32
3.6" Free-Standing, Polished Garnetite (Garnet) - Madagascar
$29
3.3" Free-Standing, Polished Garnetite (Garnet) - Madagascar
$25
3.7" Unique, Fluorescent Cave Calcite Formation - Wenshan Mine
$99