Milky Quartz
Silicon Dioxide (SiO2)
Category
Browse igneous and mineral specimens identified by the Rock Identifier community.
Milky Quartz
Silicon Dioxide (SiO2)
Porphyry
Porphyritic Igneous Rock
Porphyry (Porphyritic Basalt / Andesite)
Porphyritic Igneous Rock
Quartz Pebble
Silicon Dioxide (SiO2)
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Feldspathic Gneiss (Granite Gneiss)
Gneiss (High-grade Regional Metamorphic Rock)
Quartz (Pebble)
Silicon Dioxide (SiO2)
Labradorite
(Ca, Na)(Al, Si)4O8 (Calcium Sodium Aluminum Silicate)
Ocean Jasper
Orbicular Jasper / Silicate
Granite
Phaneritic plutonic rock (primarily Quartz, Feldspar, and Mica)
Quartz in Basalt (Xenocryst)
Silicon Dioxide (SiO2) in Mafic Igneous Volcanic Rock
Gold in Quartz Ore
Hydrothermal Quartz with native Gold (Au)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz with Iron Staining
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Crystalline Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Black Spinel
Magnesium Aluminum Oxide (MgAl2O4)
Black Obsidian
Obsidian (Volcanic Glass)
Dalmatian Jasper
Peralkaline Quartz Feldspar Porphyry
Gneiss (specifically Banded Gneiss)
Gneiss
Quartz (River Pebble)
Silicon Dioxide (SiO2)
Amygdaloidal Basalt
Amygdaloidal Basalt
Gneiss
Gneiss (High-grade metamorphic rock)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Granite
Granite
Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
Sodalite
Sodalite (Na4Al3Si3O12Cl)
Syenite
Syenite (Phaneritic Igneous Rock)
Quartz Vein
Silicon Dioxide (SiO2)
Lepidolite
Lepidolite [K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2]
Granite
Granite (Phaneritic Quartz-Feldspar rock)
Amygdaloidal Basalt with Secondary Minerals
Basalt containing secondary mineralization (likely Chlorite, Celadonite, or Zeolites)
Granite Pebbles
Granite (composed primarily of Quartz SiO2, Feldspar (KAlSi3O8 – NaAlSi3O8 – CaAl2Si2O8), and Mica)
Gneiss
Gneiss
Gneiss
Gneiss
Pegmatite (with Muscovite Mica and Quartz)
Granitic Pegmatite (chiefly KAlSi3O8, SiO2, and KAl2(AlSi3O10)(OH)2)
Granite
Granite