geological
Showing 1–20 of 100 results
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Geological Specimens
Amethyst Cathedral Geode — Half — Display Grade
Mohs hardness: 7$2,532.87 -
Geological Specimens
Pele’s Tears — Hawaiian — Specimen Grade
Mohs hardness: 5–5.5$59.91 -
Geological Specimens
Celestite Geode — Whole — Polished Face
Mohs hardness: 3–3.5$583.29 -
Geological Specimens
Obsidian — Mahogany Flow — Field Specimen
Mohs hardness: 5–5.5$69.67 -
Geological Specimens
Conglomerate — Tillite — Specimen Grade
Mohs hardness: varies$46.30 -
Geological Specimens
Eclogite — Large Specimen
Mohs hardness: 6.5–7.5$105.97 -
Geological Specimens
Serpentinite
Mohs hardness: 3–4$73.44 -
Geological Specimens
Septarian Nodule — Polished Half
Mohs hardness: varies$155.45 -
Geological Specimens
Shatter Cone — Polished Face
Mohs hardness: varies$87.80 -
Geological Specimens
Amethyst Cathedral Geode — Half — Large Specimen
Mohs hardness: 7$1,200.28 -
Geological Specimens
Conglomerate — Tillite — Display Grade
Mohs hardness: varies$33.18 -
Geological Specimens
Obsidian — Mahogany Flow — Specimen Grade
Mohs hardness: 5–5.5$120.99 -
Geological Specimens
Amethyst Cathedral Geode — Half
Mohs hardness: 7$331.89 -
Geological Specimens
Volcanic Bomb — Breadcrust — Specimen Grade
Mohs hardness: 5–6$124.73 -
Geological Specimens
Radiolarite
Mohs hardness: 6.5–7$43.33 -
Geological Specimens
Eclogite — Polished Face
Mohs hardness: 6.5–7.5$206.59 -
Geological Specimens
Suevite — Impact Breccia — Display Grade
Mohs hardness: varies$119.16 -
Geological Specimens
Volcanic Bomb — Breadcrust — Large Specimen
Mohs hardness: 5–6$50.84 -
Geological Specimens
Suevite — Impact Breccia — Specimen Grade
Mohs hardness: varies$234.38 -
Geological Specimens
Fulgurite — Desert Glass Tube — Large Specimen
Mohs hardness: 5.5–6$82.38