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Showing 381–400 of 1000 results
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Gemstones
Black Opal — Collector Grade
Mohs hardness: 5.5–6.5$7,441.80 -
Minerals
Benitoite Crystal on Natrolite — Specimen Grade
Mohs hardness: 6–6.5$8,376.81 -
Geological Specimens
Obsidian — Mahogany Flow — Specimen Grade
Mohs hardness: 5–5.5$120.99 -
Geological Specimens
Obsidian — Mahogany Flow — Large Specimen
Mohs hardness: 5–5.5$123.65 -
Gemstones
Diamond Crystal — Rough Octahedron — Natural Crystal
Mohs hardness: 10$4,385.84 -
Fossils
Fern Fossil — Pecopteris — Display Grade
Mohs hardness: —$45.82 -
Gemstones
Color-Change Garnet — Large Example
Mohs hardness: 7.25$6,105.00 -
Fossils
Shark Teeth — Odontaspis Cluster — Field-Collected
Mohs hardness: —$40.96 -
Gemstones
Topaz — Precious Pink (Unheated) — Gem Rough
Mohs hardness: 8$2,273.49 -
Curated Collections
Meteorite Collectors Set — 4 Specimens — Premium Edition
Mohs hardness: —$158.71 -
Fossils
Mosasaur Tooth on Matrix — Field-Collected
Mohs hardness: —$259.56 -
Fossils
Fish Fossil — Green River Formation — Display Grade
Mohs hardness: —$283.29 -
Gemstones
Kornerupine Crystal — Natural Crystal
Mohs hardness: 6.5$1,902.82 -
Minerals
Purple Fluorite Octahedron
Mohs hardness: 4$31.42 -
Fossils
Trilobite — Walliserops trifurcatus (Trident)
Mohs hardness: —$367.23 -
Fossils
Eurypterid — Sea Scorpion — Field-Collected
Mohs hardness: —$1,743.52 -
Meteorites
Chondrite Meteorite — L4 Type — Large Slice
Mohs hardness: 5.5–6.5$165.71 -
Fossils
Sea Urchin — Micraster
Mohs hardness: —$40.99 -
Gemstones
Spinel Crystal — Red — Collector Grade
Mohs hardness: 8$2,493.55 -
Fossils
Megalodon Tooth Replica — Detailed — Display Grade
Mohs hardness: —$28.54