Granite
Phaneritic Felsic Igneous Rock (Granite)
igneous
Category
Mineral In A Matrix (Likely Quartz Or Feldspar)
Browse mineral in a matrix (likely quartz or feldspar) specimens identified by the Rock Identifier community.
Emerald in Matrix
Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities
mineral
Granite
Phaneritic Igneous Rock (primarily Quartz, Feldspar, and Mica)
igneous
Lepidolite in Quartz (Lithium-bearing Ore)
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2) and Quartz (SiO2)
igneous/mineral
Milky Quartz with Chlorite/Moss Infusions
Silicon Dioxide (SiO2)
mineral
Quartz-veined Schist (or Metasandstone)
Metamorphic Rock with Quartz Veining (SiO2)
metamorphic
Dalmatian Stone (Dalmatian Jasper)
Peralkaline Quartz-Feldspar Rock with Arfvedsonite
igneous
Granite
Granite (Mainly Quartz, Feldspar, and Mica/Amphibole)
igneous
Granite
Granite (Mainly Quartz, Feldspar, and Mica/Amphibole)
igneous
Granite
Phaneritic Felsic Intrusive Igneous Rock
igneous
Granite
Phaneritic Felsic Igneous Rock (primarily Quartz, Feldspar, and Mica)
igneous
Pink Granite
Granite (Phaneritic Quartz-Feldspar Rock)
igneous
Gold Ore
Gold-bearing Quartz (Native Gold, Au)
mineral
Granodiorite
Granodiorite (phaneritic intrusive igneous rock)
igneous
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Granite
Phaneritic Plutonic Felsic Rock (K-Feldspar + Quartz + Plagioclase)
igneous
Amygdaloidal Basalt
Amygdaloidal Basalt (extrusive volcanic rock with mineral inclusions)
igneous
Pink Granite
Phaneritic Felsic Igneous Rock (composed primarily of K-Feldspar, Quartz, and Mica)
igneous
Quartz (Milky Variant)
Quartz (Silicon Dioxide, SiO2)
mineral
Green Aventurine
SiO2 (Silicon Dioxide with inclusions of Fuchsite mica)
mineral
Quartz-veined Basalt
Amygdaloidal or Porphyritic Basalt with Silicon Dioxide (SiO2) vein
igneous
Rose Quartz
Crystalline Silicon Dioxide with trace Titanium, Iron, or Manganese (SiO2)
mineral
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Granite
Granitoid
igneous
Arkosic Sandstone
Arkose (Clastic Sedimentary Rock)
sedimentary
Crinoid and Coral Fossils in Limestone
Fossiliferous Limestone with Rugosa (order) and Crinoidea (class)
sedimentary
Gneiss
Gneiss (High-grade regional metamorphic rock)
metamorphic
Gneiss (specifically a Granitic Gneiss)
Gneiss (Composition: Quartz, Feldspar, Mica)
metamorphic
Obsidian
Volcanic glass (mainly SiO2 with inclusions)
igneous
Granite
Granite
igneous
Granite
Granite (Phaneritic intrusive igneous rock)
igneous
Amygdaloidal Basalt with Secondary Minerals
Basalt containing secondary mineralization (likely Chlorite, Celadonite, or Zeolites)
igneous
Quartz / Limestone Gravel
SiO2 (Silicon Dioxide) and CaCO3 (Calcium Carbonate)
igneous and sedimentary mixture
Gold in Matrix
Native Gold (Au)
mineral
Rose Quartz Druzy
Silicon Dioxide (SiO2)
mineral
Felsic Igneous Rock (likely Rhyolite or weathered Granite)
Felsic Volcanic/Plutonic Rock
igneous
Blue Quartz (specifically Dumortierite Quartz)
Silicon Dioxide (SiO2) with inclusions of Dumortierite (Al7BO3(SiO4)3O3)
metamorphic
Garden Quartz
Included Quartz (SiO2 with accessory minerals such as Chlorite, Hematite, or Feldspar)
mineral
Unakite
Epidote-Feldspar rock
Metamorphic Rock
Quartz (Milky/Common)
Silicon Dioxide (SiO2)
mineral
Sandstone
Arenite
sedimentary