Granite
Granite (Mainly Quartz, Feldspar, and Mica)
Category
Browse igneous and fossil specimens identified by the Rock Identifier community.
Granite
Granite (Mainly Quartz, Feldspar, and Mica)
Garnet Rhyolite
Rhyolite (high-silica volcanic rock) with almandine/spessartine garnet
Dalmatian Stone
Dalmatian Jasper (a misnomer for an Aplite with Arfvedsonite spots)
Dyed Dalmatian Jasper (Dalmatian Stone)
Perthitic Feldspar with Arfvedsonite inclusions
Dalmatian Jasper
Peralkaline Quartz-Feldspar Igneous Rock
Epidote
Epidote (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))
Milky Quartz
Silicon Dioxide (SiO2)
Quartzite River Pebble
Metamorphic Quartzite (SiO2)
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Quartz (Milky Quartz / Quartzite)
Silicon Dioxide (SiO2)
Milky Quartz
Quartz / Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Rose Quartz
Quartz (Silicon Dioxide) - SiO2
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
River Stone (Basalt or Siltstone with banding)
Polished Basaltic or Siliciclastic River Cobble
Migmatite
Migmatite (Mixed Rock)
Red Scoria
Scoria (Vesicular Basalt/Andesite)
Granite
Granite (phaneritic felsic intrusive rock)
Pink Granite
Phaneritic Felsic Igneous Rock (Granite)
Vesicular Basalt or Hag Stone
Basalt (with vesicles) or bored Sedimentary Rock
Dalmatian Stone
Dalmatian Jasper (Aplitic Perthite)
Pink Granite
Phaneritic Plutonic Felsic Igneous Rock (Granite)
Granite
Phaneritic plutonic rock (Quartz, Feldspar, Mica)
Granite
Granitoid (KAlSi3O8 – NaAlSi3O8 – CaAl2Si2O8 + SiO2)
Dalmatian Stone
Dalmatian Jasper (a misnomer) / Perthitic Feldspar Rock
Dalmatian Jasper
Dalmatian Stone (a porphyritic peralkaline igneous rock)
Dalmatian Stone
Dalmatian Jasper (Aplitic Rock)
Granite
Granite (Phaneritic Quartz-Feldspar Plutonic Rock)
Granite
Phaneritic Igneous Rock (primarily Quartz, Feldspar, and Mica)
Dalmatian Jasper
Peralkaline Quartz-Feldspar Rock with Arfvedsonite
Dalmatian Stone
Peralkaline Quartz-Feldspar Rock
Dalmatian Jasper (Dalmatian Stone)
Perthitic feldspar with Arfvedsonite inclusions
Pink Granite
Phaneritic Felsic Igneous Rock (Granite)
Magnetite
Magnetite (Fe3O4)
Greenstone / Epidosite
Metamorphosed Mafic Igneous Rock (Epidote-Chlorite group)
Rose Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Epidote
Epidote Group (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))
Milky Quartz
Silicon Dioxide (SiO2)
Corundum (Sapphire in Host Rock)
Corundum (Aluminum Oxide, Al2O3)