geological
Showing 21–40 of 100 results
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Geological Specimens
Radiolarite — Polished Face
Mohs hardness: 6.5–7$40.53 -
Geological Specimens
Garnet Schist — Large Specimen
Mohs hardness: 5.5–7.5$97.13 -
Geological Specimens
Fulgurite — Desert Glass Tube — Large Specimen
Mohs hardness: 5.5–6$82.38 -
Geological Specimens
Garnet Schist
Mohs hardness: 5.5–7.5$108.33 -
Geological Specimens
Pumice from Santorini — Display Grade
Mohs hardness: 5.5–6$54.44 -
Geological Specimens
Oolitic Limestone — Specimen Grade
Mohs hardness: 3$42.48 -
Geological Specimens
Shatter Cone — Specimen Grade
Mohs hardness: varies$167.12 -
Geological Specimens
Radiolarite — Specimen Grade
Mohs hardness: 6.5–7$43.96 -
Geological Specimens
Suevite — Impact Breccia — Specimen Grade
Mohs hardness: varies$234.38 -
Geological Specimens
Eclogite — Specimen Grade
Mohs hardness: 6.5–7.5$96.02 -
Geological Specimens
Obsidian — Mahogany Flow — Field Specimen
Mohs hardness: 5–5.5$69.67 -
Geological Specimens
Conglomerate — Tillite — Display Grade
Mohs hardness: varies$33.18 -
Geological Specimens
Fulgurite — Desert Glass Tube — Field Specimen
Mohs hardness: 5.5–6$22.14 -
Geological Specimens
Celestite Geode — Whole
Mohs hardness: 3–3.5$515.53 -
Geological Specimens
Pele’s Tears — Hawaiian — Large Specimen
Mohs hardness: 5–5.5$30.55 -
Geological Specimens
Desert Varnish Sandstone — Display Grade
Mohs hardness: 7$41.30 -
Geological Specimens
Pele’s Tears — Hawaiian — Specimen Grade
Mohs hardness: 5–5.5$59.91 -
Geological Specimens
Shatter Cone — Display Grade
Mohs hardness: varies$67.34 -
Geological Specimens
Oolitic Limestone — Large Specimen
Mohs hardness: 3$19.86 -
Geological Specimens
Radiolarite
Mohs hardness: 6.5–7$43.33