Granite
Granite (Phaneritic Acidic Igneous Rock)
igneous
Category
Igneous And Mineral
Browse igneous and mineral specimens identified by the Rock Identifier community.
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Sodalite
Sodium Aluminum Silicate Chloride (Na8(Al6Si6O24)Cl2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Greenstone
Metabasalt (composed mainly of chlorite, epidote, and actinolite)
metamorphic
Clear Quartz
Silicon dioxide (SiO2)
mineral
Granite
Granite (a plutonic rock)
Igneous
Veined Basalt River Stone
Basalt with Calcite or Quartz veining
igneous
Obsidian
Volcanic Glass (SiO2 rich)
Igneous
Auriferous Quartz (Gold-bearing Quartz)
Silicon Dioxide (SiO2) with trace Gold (Au) and Iron Oxides
mineral
Blue Lace Agate
Silicon Dioxide (SiO2) - Variety of Chalcedony
mineral
Dalmatian Jasper
Peralkaline Quartz-Feldspar Porphyritic Rock (Dalmatian Stone)
igneous
Smoky Quartz
SiO2 (Silicon Dioxide)
mineral
Clear Quartz (Rock Crystal)
Crystalline Silicon Dioxide (SiO2)
gemstone
Orthoclase Feldspar
KAlSi3O8 (Potassium Aluminum Silicate)
mineral
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Quartz (specifically Clear or Rose Quartz)
Silicon Dioxide (SiO2)
mineral
Moonstone
Potassium Aluminum Silicate (KAlSi3O8) with inclusions of Albite
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz (Smoky/Milky variety)
Silicon Dioxide (SiO2)
mineral
Red Garnet
Pyrope or Almandine (X3Y2(SiO4)3)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Red Garnet
Pyrope or Almandine (Silicate group, X3Y2(SiO4)3)
Mineral
Quartz (Milky or Common Quartz)
Silicon Dioxide (SiO2)
mineral
Olivine/Peridot
Magnesium Iron Silicate (Mg,Fe)2SiO4
mineral
Strawberry Quartz
Quartz with Hematite or Goethite inclusions (SiO2 + inclusions)
mineral
Fluorite
Fluorite (Calcium Fluoride, CaF2)
mineral
Iridium sand or Osmium-Iridium nugget
Iridosmine / Osmiridium (Platinoid grouping)
mineral
Rose Quartz
Silicon Dioxide with trace inclusions (SiO2)
mineral
Pyrite
Pyrite (Iron Disulfide), FeS2
Mineral
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Granite
Granite (Alkali-feldspar granite)
igneous
Feldspar
KAlSi3O8 - NaAlSi3O8 - CaAl2Si2O8
mineral
River Cobble (likely Basalt or Greenstone)
Mafic Igneous Rock (with possible chloritic alteration)
igneous
Quartz (Milky/Clear Variety)
Silicon Dioxide (SiO2)
mineral
Quartz (possibly Citrine or Smoky Quartz variety)
Silicon Dioxide (SiO2)
mineral
Quartz (Milky to Clear)
Silicon Dioxide (SiO2)
mineral
Orthoclase Feldspar
Potassium aluminum silicate (KAlSi3O8)
mineral
Basalt Pebble
Basalt
igneous
Quartz Crystal Fragment
Silicon Dioxide (SiO2)
mineral
Diorite (Spotted)
Diorite (Intrusive igneous rock)
igneous
Blue Apatite
Apatite-(CaF), Ca5(PO4)3F
mineral