Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
Category
Browse mineralish (variety of chalcedony) specimens identified by the Rock Identifier community.
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
Fluorite
Calcium Fluoride (CaF2)
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Clear Quartz
Silicon dioxide (SiO2)
Pyrite
Iron Sulfide (FeS2)
Dyed Agate
Silicon Dioxide (SiO2) with synthetic dyes
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Zebra Jasper
Silicon Dioxide (SiO2)
Milky Quartz with Iron Staining
Silicon Dioxide (SiO2)
Milky Quartz with Chlorite/Amphibite Inclusions
Silicon Dioxide (SiO2) with various mineral inclusions
Chert (Nodule)
Chert (Cryptocrystalline Silica, SiO2)
Chert with Quartz Vein
Silicon dioxide (SiO2)
Chert Pebble
Silicon dioxide (SiO2)
Chert Pebble
Microcrystalline Quartz (SiO2)
Rose Quartz
Silicon dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Milky Quartz
Silicon Dioxide (SiO2)
Chert (Pebble)
Microcrystalline to Cryptocrystalline Quartz (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz Pebble
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Rose Quartz
Silicon Dioxide (SiO2) with traces of titanium, iron, or manganese
Ruby
Corundum (Al2O3 with Chromium impurities)
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz Pebble
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Chert (Quartz Variety)
Microcrystalline / Cryptocrystalline Quartz (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Satin Spar (Gypsum)
Hydrous calcium sulfate (CaSO4·2H2O)
Rose Quartz
Rose Quartz (SiO2 with traces of Titanium, Iron, or Manganese)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Rose Quartz
Rose Quartz (SiO2 with trace Ti, Fe, or Mn)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz Pebble
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Rose Quartz
Rose Quartz (SiO2 with trace Ti, Fe, or Mn)
Banded Chert
Microcrystalline Quartz (SiO2)
Milky Quartz (Tumbled/Water-worn)
Silicon Dioxide (SiO2)
Chert (Black Flint)
Chert (Microcrystalline Quartz, SiO2)
Satin Spar Selenite
Satin Spar (Calcium Sulfate Dihydrate, CaSO4·2H2O)
Milky Quartz
Silicon Dioxide (SiO2)