geological
Showing 21–40 of 100 results
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Geological Specimens
Conglomerate — Tillite — Polished Face
Mohs hardness: varies$77.53 -
Geological Specimens
Desert Varnish Sandstone — Polished Face
Mohs hardness: 7$23.42 -
Geological Specimens
Fulgurite — Desert Glass Tube — Field Specimen
Mohs hardness: 5.5–6$22.14 -
Geological Specimens
Suevite — Impact Breccia — Display Grade
Mohs hardness: varies$119.16 -
Geological Specimens
Volcanic Bomb — Breadcrust — Large Specimen
Mohs hardness: 5–6$50.84 -
Geological Specimens
Septarian Nodule — Polished Half — Large Specimen
Mohs hardness: varies$57.77 -
Geological Specimens
Desert Varnish Sandstone — Display Grade
Mohs hardness: 7$41.30 -
Geological Specimens
Shatter Cone — Polished Face
Mohs hardness: varies$87.80 -
Geological Specimens
Celestite Geode — Whole — Large Specimen
Mohs hardness: 3–3.5$336.32 -
Geological Specimens
Oolitic Limestone
Mohs hardness: 3$45.88 -
Geological Specimens
Septarian Nodule — Polished Half — Polished Face
Mohs hardness: varies$133.83 -
Geological Specimens
Suevite — Impact Breccia
Mohs hardness: varies$173.01 -
Geological Specimens
Serpentinite — Display Grade
Mohs hardness: 3–4$73.35 -
Geological Specimens
Oolitic Limestone — Polished Face
Mohs hardness: 3$47.02 -
Geological Specimens
Desert Varnish Sandstone — Large Specimen
Mohs hardness: 7$49.19 -
Geological Specimens
Pele’s Tears — Hawaiian — Display Grade
Mohs hardness: 5–5.5$49.56 -
Geological Specimens
Pumice from Santorini — Large Specimen
Mohs hardness: 5.5–6$39.11 -
Geological Specimens
Eclogite — Large Specimen
Mohs hardness: 6.5–7.5$105.97 -
Geological Specimens
Garnet Schist
Mohs hardness: 5.5–7.5$108.33 -
Geological Specimens
Radiolarite — Large Specimen
Mohs hardness: 6.5–7$21.93