Geological Specimens
Showing 1–20 of 100 results
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Geological Specimens
Obsidian — Mahogany Flow
Mohs hardness: 5–5.5$66.19 -
Geological Specimens
Chalk with Flint Nodule — Display Grade
Mohs hardness: 1–7$50.86 -
Geological Specimens
Oolitic Limestone — Display Grade
Mohs hardness: 3$34.44 -
Geological Specimens
Serpentinite — Display Grade
Mohs hardness: 3–4$73.35 -
Geological Specimens
Fulgurite — Desert Glass Tube — Large Specimen
Mohs hardness: 5.5–6$82.38 -
Geological Specimens
Volcanic Bomb — Breadcrust — Display Grade
Mohs hardness: 5–6$144.35 -
Geological Specimens
Celestite Geode — Whole — Polished Face
Mohs hardness: 3–3.5$583.29 -
Geological Specimens
Amethyst Cathedral Geode — Half — Display Grade
Mohs hardness: 7$2,532.87 -
Geological Specimens
Obsidian — Mahogany Flow — Polished Face
Mohs hardness: 5–5.5$53.46 -
Geological Specimens
Banded Iron Formation
Mohs hardness: 5.5–7$130.13 -
Geological Specimens
Shatter Cone — Polished Face
Mohs hardness: varies$87.80 -
Geological Specimens
Oolitic Limestone
Mohs hardness: 3$45.88 -
Geological Specimens
Suevite — Impact Breccia — Display Grade
Mohs hardness: varies$119.16 -
Geological Specimens
Pumice from Santorini — Polished Face
Mohs hardness: 5.5–6$21.61 -
Geological Specimens
Septarian Nodule — Polished Half — Display Grade
Mohs hardness: varies$36.06 -
Geological Specimens
Fulgurite — Desert Glass Tube — Field Specimen
Mohs hardness: 5.5–6$22.14 -
Geological Specimens
Pele’s Tears — Hawaiian — Large Specimen
Mohs hardness: 5–5.5$30.55 -
Geological Specimens
Desert Varnish Sandstone — Specimen Grade
Mohs hardness: 7$43.76 -
Geological Specimens
Radiolarite — Specimen Grade
Mohs hardness: 6.5–7$43.96 -
Geological Specimens
Radiolarite
Mohs hardness: 6.5–7$43.33