geological
Showing 61–80 of 100 results
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Geological Specimens
Celestite Geode — Whole — Specimen Grade
Mohs hardness: 3–3.5$591.94 -
Geological Specimens
Celestite Geode — Whole — Large Specimen
Mohs hardness: 3–3.5$336.32 -
Geological Specimens
Oolitic Limestone — Large Specimen
Mohs hardness: 3$19.86 -
Geological Specimens
Amethyst Cathedral Geode — Half — Polished Face
Mohs hardness: 7$2,522.08 -
Geological Specimens
Celestite Geode — Whole
Mohs hardness: 3–3.5$515.53 -
Geological Specimens
Amethyst Cathedral Geode — Half — Large Specimen
Mohs hardness: 7$1,200.28 -
Geological Specimens
Serpentinite — Large Specimen
Mohs hardness: 3–4$47.93 -
Geological Specimens
Pumice from Santorini
Mohs hardness: 5.5–6$32.72 -
Geological Specimens
Fulgurite — Desert Glass Tube — Specimen Grade
Mohs hardness: 5.5–6$63.31 -
Geological Specimens
Amethyst Cathedral Geode — Half — Display Grade
Mohs hardness: 7$2,532.87 -
Geological Specimens
Desert Varnish Sandstone — Large Specimen
Mohs hardness: 7$49.19 -
Geological Specimens
Fulgurite — Desert Glass Tube — Display Grade
Mohs hardness: 5.5–6$81.44 -
Geological Specimens
Suevite — Impact Breccia
Mohs hardness: varies$173.01 -
Geological Specimens
Garnet Schist
Mohs hardness: 5.5–7.5$108.33 -
Geological Specimens
Conglomerate — Tillite — Specimen Grade
Mohs hardness: varies$46.30 -
Geological Specimens
Radiolarite — Large Specimen
Mohs hardness: 6.5–7$21.93 -
Geological Specimens
Pumice from Santorini — Polished Face
Mohs hardness: 5.5–6$21.61 -
Geological Specimens
Serpentinite — Polished Face
Mohs hardness: 3–4$37.31 -
Geological Specimens
Oolitic Limestone
Mohs hardness: 3$45.88 -
Geological Specimens
Celestite Geode — Whole — Field Specimen
Mohs hardness: 3–3.5$501.51