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Calcite
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3.6" Pyrite Encrusted Barite Crystal Cluster - Lubin Mine, Poland
$245
3.6" Pyrite Encrusted Barite Crystal Cluster - Lubin Mine, Poland
$175
4.4" Quartz Encrusted Yellow Fluorite With Galena - Morocco
$49
4.45" Quartz Encrusted Yellow Fluorite With Galena - Morocco
$35
3.6" Hematite Quartz and Dolomite Association - China
$29
3.6" Small, Red Vanadinite Crystals on Manganese Oxide - Morocco
$19
2" Quartz Crystal Cluster with Calcite & Loellingite - Mongolia
$32
3.6" Polished Dinosaur Bone (Gembone) Section - Morocco
$25
3.6" Polished Ammonite (Promicroceras) Slice - "Marston Magna Marble"
$135
Clearance Lot: 3.6 to 4.15" Bargain Spinosaurus Teeth - 12 Pieces
$360
1.3" Quartz and Helvite (Genthelvite) Association - Inner Mongolia
$7
2.9" Purple & Green Cubic Fluorite with Quartz - China
$99
3.6" Cubic, Blue-Green Fluorite Crystal Cluster with Phantoms - China
$145
3.6" Free-Standing, Polished Rose Quartz - Madagascar
$15
3.6" Fulgurite - "Petrified Lightning"
$29
3.6" Fossil Clam (Mercenaria) With Fluorescent Calcite - Rucks Pit, FL
$115
3.6" Native Silver in Calcite - Morocco
$145
2.1" Tabular Red-Brown Barite Crystal - Morocco
$7
3.5" Tabular Red-Brown Barite Crystal - Morocco
$15
3.5" Tabular Red-Brown Barite Crystal - Morocco
$19
2.5" Tabular Red-Brown Barite Crystal - Morocco
$7
2.2" Tabular, Yellow-Brown Barite Crystal Cluster - Morocco
$5
2.8" Tabular, Red-Brown Barite Crystal Cluster - Morocco
$9
3.1" Tabular Red-Brown Barite Crystal - Morocco
$9
3.6" Fiery Orange Vanadinite On Calcite - San Carlos Mine
$29
3.6" Purple Edge Fluorite - Qinglong Mine, China
$45
3.6" Polished, Free-Standing Green Pistachio Opal - Madagascar
$25
3.6" Huge, Early Cambrian Fallotaspis - Taroudant, Morocco
$2,950
3.6" Fossil Hadrosaur Caudal Vertebra w/ Metal Stand - Texas
$245
5.7" Lustrous Celestine (Celestite) Crystals on Sulfur - Italy
$295
.8" Purple & Green Cubic Fluorite Crystal - China
$59
3.6" Anatase Crystals on Quartz with Chlorite Inclusions/Phantoms
$495
1.9" Amethyst and Chabazite Crystals on Sparkling Chalcedony - India
$19
2.2" Hausmannite Crystal Cluster - N'Chwaning Mine, South Africa
$25
3.6" Jurassic Cut & Polished Ammonite Fossil - Madagascar
$35
3.6" Petrified Wood (Tropical Hardwood) Sphere - Indonesia
$35
3.6" Fossil Freshwater Snails (Elimia) In Limestone - Wyoming
$19
3.6" Ammonite (Promicroceras) Cluster - Marston Magna, England
$95
3.6" Fossil Freshwater Snails (Elimia) In Limestone - Wyoming
$15
10" Carved Chevron Amethyst Dinosaur Crystal Skull - Ferocious!
$1,195
$950
3" Botryoidal Green Smithsonite & Calcite Association - Greece
$595
3.6" Green, Bladed Prehnite Crystals with Quartz - Morocco
$45
3.6" Fluorescent Green Fluorite Cluster - Diana Maria Mine, England
$125
3.6" Pagoda Style Calcite Crystals on Calcite - Fluorescent!
$49
2.4" Cubo-Octahedral Galena on Barite and Pyrite - Morocco
$45
3.6" Beautiful Polished Septarian Nodule - Utah
$45
1.2" Amethyst Crystals and Chabazite in Basalt - India
$15
33" Golden-Orange "Citrine" Cathedral Geode - Spectacular Display
$2,950
3.6" Free-Standing, Polished Garnetite (Garnet) - Madagascar
$29
3.6" Limonite Cast Pseudomorph - Ojuela Mine, Mexico
$19
3.6" Jurassic Ammonite (Dactylioceras) Fossil - England
$69
3.6" Fossil Dinosaur Appendage Bone Section - Wyoming
$35
3.1" Armored Annelid Worm (Plumulites) Fossil Pos/Neg - Morocco
$395
13" Dark Smoky Quartz Crystal Cluster on Metal Stand - Brazil
$895
$750
3.6" Lustrous Muscovite Crystal Cluster - Minas Gerais, Brazil
$12
3.6" Blue-Green Aragonite Aggregation - Wenshan Mine, China
$75
3.6" Polished Green-White Opal Slab - Western Australia
$25
3.6" Polished Colombian Copal (86.6 g) - Contains Insects!
$265
3.6" Flashy, Polished Labradorite Palm Stone - Madagascar
$15
3.6" Polished Agate Replaced Barite Nodule Pair - Utah
$85