geological
Showing 41–60 of 100 results
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Geological Specimens
Garnet Schist
Mohs hardness: 5.5–7.5$108.33 -
Geological Specimens
Shatter Cone — Polished Face
Mohs hardness: varies$87.80 -
Geological Specimens
Volcanic Bomb — Breadcrust — Polished Face
Mohs hardness: 5–6$28.16 -
Geological Specimens
Desert Varnish Sandstone — Polished Face
Mohs hardness: 7$23.42 -
Geological Specimens
Obsidian — Mahogany Flow — Display Grade
Mohs hardness: 5–5.5$28.68 -
Geological Specimens
Chalk with Flint Nodule — Specimen Grade
Mohs hardness: 1–7$45.57 -
Geological Specimens
Oolitic Limestone — Large Specimen
Mohs hardness: 3$19.86 -
Geological Specimens
Oolitic Limestone
Mohs hardness: 3$45.88 -
Geological Specimens
Celestite Geode — Whole — Specimen Grade
Mohs hardness: 3–3.5$591.94 -
Geological Specimens
Fulgurite — Desert Glass Tube — Display Grade
Mohs hardness: 5.5–6$81.44 -
Geological Specimens
Septarian Nodule — Polished Half — Specimen Grade
Mohs hardness: varies$136.93 -
Geological Specimens
Oolitic Limestone — Display Grade
Mohs hardness: 3$34.44 -
Geological Specimens
Conglomerate — Tillite — Large Specimen
Mohs hardness: varies$48.51 -
Geological Specimens
Eclogite
Mohs hardness: 6.5–7.5$154.48 -
Geological Specimens
Volcanic Bomb — Breadcrust — Specimen Grade
Mohs hardness: 5–6$124.73 -
Geological Specimens
Desert Varnish Sandstone — Specimen Grade
Mohs hardness: 7$43.76 -
Geological Specimens
Amethyst Cathedral Geode — Half — Large Specimen
Mohs hardness: 7$1,200.28 -
Geological Specimens
Desert Varnish Sandstone — Large Specimen
Mohs hardness: 7$49.19 -
Geological Specimens
Fulgurite — Desert Glass Tube
Mohs hardness: 5.5–6$84.86 -
Geological Specimens
Radiolarite — Specimen Grade
Mohs hardness: 6.5–7$43.96