Milky Quartz
Silicon Dioxide (SiO2)
Category
Browse granite specimens identified by the Rock Identifier community.
Milky Quartz
Silicon Dioxide (SiO2)
Gneiss
High-grade metamorphic rock (Gneiss)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Muscovite Mica (in Quartz matrix)
Potassium aluminum silicate hydroxide fluoride (KAl2(AlSi3O10)(F,OH)2)
Smoky Quartz with Feldspar
Quartz (SiO2) with Potassium Feldspar (KAlSi3O8)
Smoky Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz (Clear/Milky)
Silicon Dioxide (SiO2)
Quartzite
Metamorphosed Quartz Sandstone (SiO2)
Rhyolite Pebble
Rhyolite
Snowflake Obsidian
Vitreous Volcanic Glass (Siliceous Obsidian with Cristobalite inclusions)
Pink Granite with Quartz Vein
Phaneritic Plutonic Felsic Rock (K-feldspar + Quartz + Plagioclase + Mica)
Rhyolite
Rhyolite
Coquina / Fossiliferous Limestone
Calcareous bioclastic sedimentary rock (CaCO3)
Xenolith in Basalt
Mafic Igneous Rock with Felsic Inclusion
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Black Tourmaline
Schorl (Na(Fe²⁺)₃Al₆(BO₃)₃Si₆O₁₈(OH)₄)
Quartz (Smoky/Grey Quartz Variant)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz (Iron-stained)
Silicon Dioxide (SiO2) with hematite/limonite inclusions
Quartz Pebble
Silicon Dioxide (SiO2)
Sandstone (likely Arkose)
Arenite (Feldspathic Sandstone / Arkose)
Quartz Pebble
Silicon Dioxide (SiO2)
Green Fluorite
Fluorite (Calcium Fluoride, CaF2)
White Topaz
Topaz [Al2SiO4(F,OH)2]
Grey Quartz (likely Smoky Quartz or Milky Quartz)
Silicon Dioxide (SiO2)
Lepidolite
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
Gneiss with Quartz Veining
Gneiss (High-grade regional metamorphic rock)
Gneiss
Gneiss
Milky Quartz
Silicon Dioxide (SiO2)
Quartz (Druzy or Crystalline variety)
Silicon Dioxide (SiO2)
Amethyst
Silicon Dioxide (SiO2) with Iron impurities
Pink Feldspar
Orthoclase (KAlSi3O8) or Microcline
Gneiss
Gneiss (High-grade metamorphic rock)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Banded Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)