Garnet (specifically Almandine or Pyrope)
Almandine (Fe3Al2Si3O12) or Pyrope (Mg3Al2Si3O12)
Category
Browse industrial byproduct specimens identified by the Rock Identifier community.
Garnet (specifically Almandine or Pyrope)
Almandine (Fe3Al2Si3O12) or Pyrope (Mg3Al2Si3O12)
Orange Quartzite (Tumble-polished)
Quartzite (primarily SiO2)
Milky Quartz (river pebble)
Quartz (Silicon Dioxide, SiO2)
Diamond (Princess Cut)
Carbon (C)
Agate
Chalcedony (Silicon Dioxide, SiO2)
Grey Chalcedony (Agate)
Silicon Dioxide (SiO2)
Agate (Beads)
Silicon Dioxide (SiO2)
Red Jasper (River Siltstone)
Silicon Dioxide (SiO2) with iron oxide inclusions
Satin Spar (often marketed as Selenite)
Gypsum (Calcium Sulfate Dihydrate) - CaSO4·2H2O
Bismuth Crystal
Bismuth (Bi)
Almandine Garnet
Almandine (Fe3Al2(SiO4)3)
Kyanite
Kyanite (Al2SiO5)
Amethyst
Amethyst (Silicon Dioxide - SiO2 with iron impurities)
Smoky Quartz (Tumbled)
Smoky Quartz (Silicon Dioxide - SiO2)
Quartz on Greenstone
Silicon Dioxide (SiO2) on Altered Igneous Geologic Unit
Kyanite
Kyanite (Al2SiO5)
Chiastolite (Andalusite)
Al2SiO5
Chert (Chert Nodule)
Silicon Dioxide (SiO₂)
Green Calcite
Calcium Carbonate (CaCO3)
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
Aquamarine
Beryllium aluminum silicate (Be3Al2Si6O18)
Milky Quartz (Tumbled)
Quartz (Silicon Dioxide, SiO2)
Aragonite Star Cluster (or Aragonite Sputnik)
Aragonite (Orthorhombic Calcium Carbonate, CaCO3)
Agate (Common Chalcedony)
Silicon Dioxide (SiO2)
Diamond
Natural Carbon (C)
Orange Calcite
Calcite (Calcium Carbonate - CaCO3)
Blue Kyanite
Kyanite (Al2SiO5)
Banded Chalcedony (Agate)
Cryptocrystalline Quartz (SiO2)
Chert (Cherty Limestone / Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Red Jasper (Quartz)
Silicon Dioxide (SiO2) with Iron impurities
Milky Quartz (Water-worn Pebble)
Silicon Dioxide (SiO2)
Chert (specifically Flint or Jasper variant)
Microcrystalline or Cryptocrystalline Silicon Dioxide (SiO2)
Druzy Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Orange Calcite
Calcium Carbonate (CaCO3)
Green Fluorite
Fluorite (Calcium Fluoride, CaF2)
Green Calcite
Calcium Carbonate (CaCO3)
Diamond (in jewelry setting)
Carbon (C)
Orange Calcite (Carved as a Horned Skull)
Calcium Carbonate (CaCO3)
Diamond (Uncut Crystal)
Carbon (C)
Blue Calcite
Calcium Carbonate (CaCO3)
Quartzite
Quartzite (SiO2)