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Showing 521–540 of 1000 results
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Gemstones
Ruby Crystal in Matrix — Exceptional Quality
Mohs hardness: 9$702.40 -
Geological Specimens
Chalk with Flint Nodule — Display Grade
Mohs hardness: 1–7$50.86 -
Curated Collections
Space Rocks Starter Kit — 5 Specimens — Educational Edition
Mohs hardness: —$274.94 -
Gemstones
Amber with Insect Inclusion — Exceptional Quality
Mohs hardness: 2–2.5$1,792.80 -
Minerals
Blue Topaz Crystal — Natural
Mohs hardness: 8$599.88 -
Fossils
Crinoid Stem Section — Polished — Prepared Specimen
Mohs hardness: —$47.60 -
Minerals
Sillimanite Fibrous — Cabinet Specimen
Mohs hardness: 7–7.5$26.46 -
Curated Collections
Gift Set — ‘The Extraordinary Earth’ ($50) — Educational Edition
Mohs hardness: —$51.28 -
Minerals
Painite Crystal — Specimen Grade
Mohs hardness: 8$36,754.87 -
Gemstones
Tsavorite Garnet Crystal — Exceptional Quality
Mohs hardness: 7–7.5$2,429.42 -
Fossils
Dinosaur Tooth — Spinosaurus
Mohs hardness: —$388.93 -
Geological Specimens
Desert Varnish Sandstone — Display Grade
Mohs hardness: 7$41.30 -
Gemstones
White Opal — Harlequin
Mohs hardness: 5.5–6.5$2,012.88 -
Fossils
Trilobite — Walliserops trifurcatus (Trident) — Exceptional Preservation
Mohs hardness: —$540.91 -
Fossils
Brachiopod Cluster — Spirifer — Small Specimen
Mohs hardness: —$62.66 -
Minerals
Blue Topaz Crystal — Natural — Specimen Grade
Mohs hardness: 8$712.13 -
Geological Specimens
Chalk with Flint Nodule
Mohs hardness: 1–7$32.05 -
Geological Specimens
Volcanic Bomb — Breadcrust — Specimen Grade
Mohs hardness: 5–6$124.73 -
Gemstones
Sphene Crystal — Titanite — Gem Rough
Mohs hardness: 5–5.5$512.67 -
Geological Specimens
Shatter Cone — Display Grade
Mohs hardness: varies$67.34