geological
Showing 41–60 of 100 results
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Geological Specimens
Serpentinite — Large Specimen
Mohs hardness: 3–4$47.93 -
Geological Specimens
Eclogite
Mohs hardness: 6.5–7.5$154.48 -
Geological Specimens
Serpentinite — Specimen Grade
Mohs hardness: 3–4$64.71 -
Geological Specimens
Volcanic Bomb — Breadcrust — Large Specimen
Mohs hardness: 5–6$50.84 -
Geological Specimens
Amethyst Cathedral Geode — Half
Mohs hardness: 7$331.89 -
Geological Specimens
Volcanic Bomb — Breadcrust
Mohs hardness: 5–6$102.88 -
Geological Specimens
Radiolarite
Mohs hardness: 6.5–7$43.33 -
Geological Specimens
Pele’s Tears — Hawaiian — Polished Face
Mohs hardness: 5–5.5$39.27 -
Geological Specimens
Celestite Geode — Whole — Polished Face
Mohs hardness: 3–3.5$583.29 -
Geological Specimens
Banded Iron Formation — Specimen Grade
Mohs hardness: 5.5–7$143.95 -
Geological Specimens
Fulgurite — Desert Glass Tube
Mohs hardness: 5.5–6$84.86 -
Geological Specimens
Eclogite — Specimen Grade
Mohs hardness: 6.5–7.5$96.02 -
Geological Specimens
Pumice from Santorini — Display Grade
Mohs hardness: 5.5–6$54.44 -
Geological Specimens
Eclogite — Display Grade
Mohs hardness: 6.5–7.5$121.59 -
Geological Specimens
Volcanic Bomb — Breadcrust — Display Grade
Mohs hardness: 5–6$144.35 -
Geological Specimens
Conglomerate — Tillite — Display Grade
Mohs hardness: varies$33.18 -
Geological Specimens
Banded Iron Formation — Field Specimen
Mohs hardness: 5.5–7$153.80 -
Geological Specimens
Conglomerate — Tillite — Specimen Grade
Mohs hardness: varies$46.30 -
Geological Specimens
Garnet Schist — Large Specimen
Mohs hardness: 5.5–7.5$97.13 -
Geological Specimens
Obsidian — Mahogany Flow — Display Grade
Mohs hardness: 5–5.5$28.68