geological
Showing 21–40 of 100 results
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Geological Specimens
Eclogite — Specimen Grade
Mohs hardness: 6.5–7.5$96.02 -
Geological Specimens
Banded Iron Formation — Display Grade
Mohs hardness: 5.5–7$143.41 -
Geological Specimens
Radiolarite — Specimen Grade
Mohs hardness: 6.5–7$43.96 -
Geological Specimens
Oolitic Limestone — Polished Face
Mohs hardness: 3$47.02 -
Geological Specimens
Suevite — Impact Breccia — Display Grade
Mohs hardness: varies$119.16 -
Geological Specimens
Fulgurite — Desert Glass Tube — Specimen Grade
Mohs hardness: 5.5–6$63.31 -
Geological Specimens
Banded Iron Formation — Large Specimen
Mohs hardness: 5.5–7$129.60 -
Geological Specimens
Obsidian — Mahogany Flow — Field Specimen
Mohs hardness: 5–5.5$69.67 -
Geological Specimens
Oolitic Limestone
Mohs hardness: 3$45.88 -
Geological Specimens
Desert Varnish Sandstone — Large Specimen
Mohs hardness: 7$49.19 -
Geological Specimens
Eclogite — Polished Face
Mohs hardness: 6.5–7.5$206.59 -
Geological Specimens
Obsidian — Mahogany Flow — Large Specimen
Mohs hardness: 5–5.5$123.65 -
Geological Specimens
Fulgurite — Desert Glass Tube — Large Specimen
Mohs hardness: 5.5–6$82.38 -
Geological Specimens
Celestite Geode — Whole — Display Grade
Mohs hardness: 3–3.5$381.58 -
Geological Specimens
Desert Varnish Sandstone
Mohs hardness: 7$52.07 -
Geological Specimens
Oolitic Limestone — Specimen Grade
Mohs hardness: 3$42.48 -
Geological Specimens
Suevite — Impact Breccia
Mohs hardness: varies$173.01 -
Geological Specimens
Serpentinite — Display Grade
Mohs hardness: 3–4$73.35 -
Geological Specimens
Pumice from Santorini — Specimen Grade
Mohs hardness: 5.5–6$48.41 -
Geological Specimens
Celestite Geode — Whole — Large Specimen
Mohs hardness: 3–3.5$336.32