Granite
Granite (Felsic Plutonic Rock)
Category
Browse igneous (anthropogenic) specimens identified by the Rock Identifier community.
Granite
Granite (Felsic Plutonic Rock)
Diorite (Dalmatian Stone)
Phaneritic Plutonic Diorite
Granite
Granite (Mainly Quartz, Feldspar, and Mica)
Likely magnetite-bearing rock
Magnetite (Fe₃O₄), possibly in a mafic host rock
Diorite
Diorite
Possible magnetite fragment
Magnetite (Fe₃O₄), tentative identification
Granite
Phaneritic Plutonic Igneous Rock
Basalt with Quartz Veins
Basalt with Quartz or Calcite Veining
Quartz pebble
Silicon dioxide (SiO2)
Clear Quartz (Faceted) or Cubic Zirconia / Glass imitation
SiO2 (if Quartz), ZrO2 (if Cubic Zirconia)
Raw Topaz (or Smoky Quartz)
Al2SiO4(F,OH)2 / Silicon Dioxide (SiO2)
Sapphire
Corundum (Al2O3)
Blue Apatite
Fluorapatite (Ca5(PO4)3(F,Cl,OH))
Blue Apatite
Ca5(PO4)3(F,Cl,OH)
Yellow Apatite
Fluorapatite (Ca5(PO4)3(F,Cl,OH))
Granite
Granite
Milky quartz pebble
Quartz (silicon dioxide, SiO₂)
Labradorite
Labradorite (a calcium-enriched sodic plagioclase feldspar mineral - (Ca, Na)(Al, Si)4O8)
Dalmatian Stone
Aplite (often incorrectly called Dalmatian Jasper)
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
Granite (weathered/river-tumbled)
Granite (Plutonic Igneous Rock)
Granite
Phaneritic Felsic Igneous Rock
Basalt
Extrusive Igneous Rock (Mafic)
Granite
Felsic intrusive igneous rock
Likely quartz-bearing rock fragment
Quartz (SiO₂), possibly with iron-oxide staining or other mineral inclusions
Milky quartz
Quartz, silicon dioxide (SiO₂)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz (Raw and Water-worn)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Granite / Feldspar gravel
Granite (felsic intrusive igneous rock)
Magnetite
Fe3O4 (Iron(II,III) oxide)
Quartz with Muscovite Mica
Silicon Dioxide (SiO2) with Potassium aluminum silicate hydroxide fluoride [KAl2(AlSi3O10)(F,OH)2]
Milky Quartz with inclusions
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz Druze (Crystalline Quartz)
Silicon Dioxide (SiO2)
Quartz (Milky and Smoky variety)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Citrine Quartz
Silicon Dioxide (SiO2) with iron impurities
Tumbled dark-blue stone, possibly sodalite or dyed stone
Likely sodalite (Na₈Al₆Si₆O₂₄Cl₂); exact identification requires testing
Blue tumbled stone, possibly sodalite or dyed quartz
Tentative: sodalite (Na₈Al₆Si₆O₂₄Cl₂) or blue-dyed quartz (SiO₂)