geological
Showing 21–40 of 100 results
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Geological Specimens
Amethyst Cathedral Geode — Half — Specimen Grade
Mohs hardness: 7$1,860.36 -
Geological Specimens
Chalk with Flint Nodule — Large Specimen
Mohs hardness: 1–7$50.31 -
Geological Specimens
Septarian Nodule — Polished Half — Specimen Grade
Mohs hardness: varies$136.93 -
Geological Specimens
Pele’s Tears — Hawaiian — Specimen Grade
Mohs hardness: 5–5.5$59.91 -
Geological Specimens
Volcanic Bomb — Breadcrust — Polished Face
Mohs hardness: 5–6$28.16 -
Geological Specimens
Eclogite
Mohs hardness: 6.5–7.5$154.48 -
Geological Specimens
Desert Varnish Sandstone
Mohs hardness: 7$52.07 -
Geological Specimens
Eclogite — Polished Face
Mohs hardness: 6.5–7.5$206.59 -
Geological Specimens
Celestite Geode — Whole — Specimen Grade
Mohs hardness: 3–3.5$591.94 -
Geological Specimens
Fulgurite — Desert Glass Tube — Large Specimen
Mohs hardness: 5.5–6$82.38 -
Geological Specimens
Radiolarite — Display Grade
Mohs hardness: 6.5–7$21.36 -
Geological Specimens
Suevite — Impact Breccia
Mohs hardness: varies$173.01 -
Geological Specimens
Banded Iron Formation — Display Grade
Mohs hardness: 5.5–7$143.41 -
Geological Specimens
Fulgurite — Desert Glass Tube — Polished Face
Mohs hardness: 5.5–6$71.61 -
Geological Specimens
Shatter Cone — Large Specimen
Mohs hardness: varies$48.83 -
Geological Specimens
Desert Varnish Sandstone — Specimen Grade
Mohs hardness: 7$43.76 -
Geological Specimens
Volcanic Bomb — Breadcrust
Mohs hardness: 5–6$102.88 -
Geological Specimens
Obsidian — Mahogany Flow — Display Grade
Mohs hardness: 5–5.5$28.68 -
Geological Specimens
Amethyst Cathedral Geode — Half
Mohs hardness: 7$331.89 -
Geological Specimens
Serpentinite — Specimen Grade
Mohs hardness: 3–4$64.71