geological
Showing 1–20 of 100 results
-
Geological Specimens
Conglomerate — Tillite — Large Specimen
Mohs hardness: varies$48.51 -
Geological Specimens
Garnet Schist — Large Specimen
Mohs hardness: 5.5–7.5$97.13 -
Geological Specimens
Banded Iron Formation — Display Grade
Mohs hardness: 5.5–7$143.41 -
Geological Specimens
Obsidian — Mahogany Flow — Large Specimen
Mohs hardness: 5–5.5$123.65 -
Geological Specimens
Radiolarite — Specimen Grade
Mohs hardness: 6.5–7$43.96 -
Geological Specimens
Oolitic Limestone — Display Grade
Mohs hardness: 3$34.44 -
Geological Specimens
Conglomerate — Tillite — Display Grade
Mohs hardness: varies$33.18 -
Geological Specimens
Serpentinite — Large Specimen
Mohs hardness: 3–4$47.93 -
Geological Specimens
Obsidian — Mahogany Flow
Mohs hardness: 5–5.5$66.19 -
Geological Specimens
Banded Iron Formation
Mohs hardness: 5.5–7$130.13 -
Geological Specimens
Desert Varnish Sandstone — Display Grade
Mohs hardness: 7$41.30 -
Geological Specimens
Garnet Schist — Display Grade
Mohs hardness: 5.5–7.5$128.87 -
Geological Specimens
Desert Varnish Sandstone
Mohs hardness: 7$52.07 -
Geological Specimens
Suevite — Impact Breccia — Large Specimen
Mohs hardness: varies$58.94 -
Geological Specimens
Pele’s Tears — Hawaiian
Mohs hardness: 5–5.5$52.21 -
Geological Specimens
Volcanic Bomb — Breadcrust — Polished Face
Mohs hardness: 5–6$28.16 -
Geological Specimens
Radiolarite — Polished Face
Mohs hardness: 6.5–7$40.53 -
Geological Specimens
Serpentinite
Mohs hardness: 3–4$73.44 -
Geological Specimens
Obsidian — Mahogany Flow — Polished Face
Mohs hardness: 5–5.5$53.46 -
Geological Specimens
Pele’s Tears — Hawaiian — Large Specimen
Mohs hardness: 5–5.5$30.55