geological
Showing 61–80 of 100 results
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Geological Specimens
Garnet Schist — Specimen Grade
Mohs hardness: 5.5–7.5$74.71 -
Geological Specimens
Conglomerate — Tillite — Specimen Grade
Mohs hardness: varies$46.30 -
Geological Specimens
Shatter Cone — Polished Face
Mohs hardness: varies$87.80 -
Geological Specimens
Shatter Cone — Display Grade
Mohs hardness: varies$67.34 -
Geological Specimens
Chalk with Flint Nodule — Display Grade
Mohs hardness: 1–7$50.86 -
Geological Specimens
Obsidian — Mahogany Flow — Field Specimen
Mohs hardness: 5–5.5$69.67 -
Geological Specimens
Garnet Schist
Mohs hardness: 5.5–7.5$108.33 -
Geological Specimens
Conglomerate — Tillite — Polished Face
Mohs hardness: varies$77.53 -
Geological Specimens
Eclogite — Large Specimen
Mohs hardness: 6.5–7.5$105.97 -
Geological Specimens
Garnet Schist — Display Grade
Mohs hardness: 5.5–7.5$128.87 -
Geological Specimens
Oolitic Limestone — Large Specimen
Mohs hardness: 3$19.86 -
Geological Specimens
Pele’s Tears — Hawaiian — Large Specimen
Mohs hardness: 5–5.5$30.55 -
Geological Specimens
Celestite Geode — Whole — Specimen Grade
Mohs hardness: 3–3.5$591.94 -
Geological Specimens
Celestite Geode — Whole — Polished Face
Mohs hardness: 3–3.5$583.29 -
Geological Specimens
Oolitic Limestone — Specimen Grade
Mohs hardness: 3$42.48 -
Geological Specimens
Celestite Geode — Whole
Mohs hardness: 3–3.5$515.53 -
Geological Specimens
Banded Iron Formation — Display Grade
Mohs hardness: 5.5–7$143.41 -
Geological Specimens
Pumice from Santorini — Display Grade
Mohs hardness: 5.5–6$54.44 -
Geological Specimens
Suevite — Impact Breccia — Polished Face
Mohs hardness: varies$68.80 -
Geological Specimens
Pumice from Santorini — Large Specimen
Mohs hardness: 5.5–6$39.11