Diamond
Diamond (C)
Mineral
Category
Mineral Based Human Made Alloy
Browse mineral based human made alloy specimens identified by the Rock Identifier community.
Quartz
SiO₂ (Silicon Dioxide)
Mineral
Quartz (Milky Quartz)
Quartz (SiO2 - Silicon Dioxide)
Mineral
Amazonite
Amazonite (KAlSi3O8)
mineral
Quartz (variety of colors)
SiO2 (Silicon Dioxide)
Mineral
Kyanite
Kyanite (Al2SiO5)
Mineral
Sea Glass (Frosted Glass)
Amorphous Silica (SiO2) with various additives
Man-made material (Anthropogenic 'mineraloid')
Quartz (likely Milky Quartz or Chalcedony)
Quartz (SiO2 - Silicon Dioxide)
Mineral
Rose Quartz
Rose Quartz (SiO₂)
Mineral
Quartz (various varieties)
SiO₂ (Silicon Dioxide)
Mineral
Quartz
Quartz (SiO₂)
Mineral
Calcite
Calcite (CaCO3)
Mineral
Jasper (yellow/cream variety)
SiO₂ (Cryptocrystalline Quartz)
Sedimentary
Quartz
Quartz (SiO₂)
Mineral
Quartz
Quartz (SiO₂)
Mineral
Clear Quartz (or Rock Crystal)
Quartz (SiO₂ - Silicon Dioxide)
Mineral
Ruby in Zoisite
Ruby (Corundum, Al2O3) in Zoisite (Calcium aluminum silicate hydroxide, Ca2Al3(SiO4)3(OH)) with some Hornblende
Metamorphic Rock (specifically a rock composed of minerals)
Greywacke (likely)
Greywacke (a type of sandstone)
Sedimentary
Rutilated Quartz
SiO2 (Quartz) with TiO2 (Rutile inclusions)
Mineral
Quartz (beads)
SiO2 (Silicon Dioxide)
Mineral
Quartz
Quartz (SiO2 - Silicon Dioxide)
Mineral, often found as detrital grains in sedimentary rocks
Quartz (likely milky quartz or a stained variety)
Silicon Dioxide (SiO₂)
Mineral
Quartz
Quartz (SiO2 - Silicon Dioxide)
Mineral
Chert (Flint)
Chert (predominantly SiO₂ - silicon dioxide)
sedimentary
Quartz (possibly milky quartz)
Quartz (Silica; SiO₂)
Mineral
Quartz Crystal
Quartz (SiO₂)
Mineral