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Aragonite
Cave Calcite
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2.8" Yellow Cave Calcite (Aragonite) Formation - Peru
$19
3" Columnar Calcite Crystals on Pyrite and Quartz - Fluorescent!
$175
2.35" Calcite Crystals on Dolomite - Peru
$15
9.5" Sparkling Cave Calcite (Aragonite) Formation - Potosi Mine, Mexico
$225
8.8" Sparkling Cave Calcite (Aragonite) Formation - Potosi Mine, Mexico
$225
11.1" Sparkling Cave Calcite (Aragonite) Formation - Potosi Mine, Mexico
$185
7" Sparkling Cave Calcite (Aragonite) Formation - Potosi Mine, Mexico
$175
8" Sparkling Cave Calcite (Aragonite) Formation - Potosi Mine, Mexico
$195
$145
1.4" Fluorescent Chiastolite Andalusite - Kola Peninsula, Russia
$19
1.4" Polished Candy Agate - Malawi
$49
1.22" Polished Colombian Copal (1.4 g) - Contains Beetle!
$25
4.85" Striated Pyrite and Quartz on Sphalerite - Peru
$65
1.4" Polished Chiapas Amber (11.2 g) - Mexico
$35
1.4" Devonian Acanthodian (Diplacanthus) Fossil - Scotland
$145
2.2" Lustrous Galena Crystals on Fluorescent Sphalerite - Peru
$15
1.4" Soft-Bodied Marrellomorph (Furca) Fossil - Fezouata Formation
$495
1.4" Cubic Fluorite Crystals on Quartz - Yaogangxian Mine
$39
4.35" Quartz and Pyrite Crystal Cluster - Crystals on Crystals!
$39
2.7" Polished Aragonite Stalactite Slice - Morocco
$12
2.95" Polished Aragonite Stalactite Slice - Morocco
$12
2.9" Polished Aragonite Stalactite Slice - Morocco
$5
Clearance: Polished Aragonite Stalactite Slices & Sections - 52 Pieces
$150
Clearance: Polished Aragonite Stalactite Slices & Sections - 32 Pieces
$120
3.7" Unique, Fluorescent Cave Calcite Formation - Wenshan Mine
$99
4.25" Fluorescent Calcite Crystal Cluster - Morocco
$32
6.65" Fluorescent Calcite Crystal Cluster - Morocco
$79
2.7" Quartz and Pyrite Crystal Cluster with Realgar - Peru
$25
2.75" Intricate Sphalerite on Quartz - Peru
$25
3.45" Twinned Selenite Crystals (Fluorescent) - Red River Floodway
$165
$135
2.3" Intricate, Fluorescent Aragonite Formation - Nevada
$29
2.65" Intricate, Fluorescent Aragonite Formation - Nevada
$29
4.85" Intricate, Fluorescent Aragonite Formation - Nevada
$95
6.45" Intricate, Fluorescent Aragonite Formation - Nevada
$99
6.0" Fluorescent Calcite Crystal Cluster - Morocco
$35
10.75" Fluorescent Calcite Crystal Cluster - Morocco
$149
1.4" Metallic Wodginite Crystals - Brazil
$39
1.4" Metallic Wodginite Crystals - Brazil
$125
4.3" Cave Calcite Stalactites with Fluorescent Calcite - Wenshan Mine
$195
4.8" Cave Calcite Stalactite with Fluorescent Calcite - Wenshan Mine
$145
5.2" Sparkling Cave Calcite (Aragonite) Formation - Potosi Mine, Mexico
$79
2.1" Sparkling Cave Calcite (Aragonite) Formation - Potosi Mine, Mexico
$19
2.65" Sparkling Yellow Fluorite Cluster - Spain
$35
2.5" Gleaming Striated Pyrite Crystals with Quartz - Peru
$25
2" Sharp, Scalenohedral Calcite Crystal Cluster - Red Dome Mine
$15
4.7" Beautiful Septarian Geode Bookends - Utah
$175
5.6" Beautiful Septarian Geode Bookends - Utah
$349
5.8" Beautiful Septarian Geode Bookends - Utah
$375
3.7" Fiery Red-Orange Orpiment on Pyrite - Peru
$59
4.8" Crystal Filled Septarian Geode Bookends - Utah
$449
6.1" Crystal Filled Septarian Geode Bookends - Utah
$475
5.7" Crystal Filled Septarian Geode Bookends - Utah
$495
6" Crystal Filled Septarian Geode Bookends - Utah
$595
1.4" Ordovician Chaetetid Sponge (Solenopora) Fossil - Kentucky
$15
Bargain, 1.4" Reedops Trilobite - Atchana, Morocco
$19
2.7" Quartz and Pyrite on Dolomite - Peru
$19
1.3" Natural, Native Copper Formation - Peru
$7
1.5" Natural, Native Copper Formation - Peru
$5
1.4" Stellate Glendonite (Calcite Pseudomorph) Cluster - Russia
$25
1.4" Ordovician Gastropod (Salpingostoma) Fossil - Wisconsin
$45
1.4" Spiny Cyphaspides Ammari Trilobite - Rare Species
$495