Milky Quartz
Silicon Dioxide (SiO2)
mineral
Category
Granite
Browse granite specimens identified by the Rock Identifier community.
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Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
River Pebbles (Stream-rounded rocks)
Fluvial Detritus (varied mineralogy)
Mixed (predominantly sedimentary and igneous)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Amazonite
Potassium Feldspar (KAlSi3O8)
mineral
Amazonite
K(AlSi3O8) - Lead-bearing Microcline (Potassium Feldspar)
Mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz (River Pebble)
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Granitoid (with Epidote and Orthoclase)
Crystalline Felsic Intrusive Rock (containing SiO2, KAlSi3O8, and Ca2(Al2,Fe)(Si2O7)(SiO4)O(OH))
igneous
Diorite
Diorite (Intermediate intrusive igneous rock)
igneous
Amethyst
Quartz (Silicon Dioxide with iron impurities), SiO2
mineral
Rough Quartz (Clear Quartz)
Silicon Dioxide (SiO2)
mineral
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of Titanium, Iron, or Manganese
mineral
Diorite
Intrusive Igneous Diorite
igneous
Diorite (Salt and Pepper Rock)
Diorite
igneous
Muscovite Mica
Muscovite (KAl2(AlSi3O10)(OH)2)
mineral
Muscovite Mica
Muscovite - KAl2(AlSi3O10)(F,OH)2
mineral
Orthoclase Feldspar
Orthoclase (KAlSi₃O₈)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Diorite
Diorite
igneous
Muscovite Mica
Muscovite: KAl2(AlSi3O10)(OH)2
mineral
Granitic Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Lepidolite on Quartz
K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2 (Lepidolite) / SiO2 (Quartz)
mineral
Aquamarine (Beryl)
Beryllium aluminum silicate (Be3Al2Si6O18)
mineral
Beryl (likely Pink/Morganite variety)
Beryllium aluminum silicate (Be3Al2Si6O18)
mineral
Amazonite
Microcline-type Feldspar (KAlSi3O8)
mineral
Epidote in Quartz (Unakite-like specimen)
Epidote (Ca2(Al2,Fe)(SiO4)(Si2O7)O(OH)) in Quartz (SiO2)
metamorphic
Aquamarine
Beryl (Be3Al2Si6O18)
mineral
Milky Quartz with inclusions
Silicon Dioxide (SiO2)
mineral
Amazonite
Amazonite (Microcline) - K(AlSi3O8)
mineral
Quartz (Milky/Clear variety)
Silicon Dioxide (SiO2)
mineral
Lepidolite
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
mineral
Beryl (Emerald Variety)
Beryllium aluminum silicate (Be3Al2(SiO3)6)
mineral
Tourmaline (Mixed colors)
Boron silicate mineral (Na,Ca)(Li,Mg,Al,Fe,Mn,Ti,V,Cr)3Al6(BO3)3Si6O18(OH,F)4
mineral
Beryl (likely Emerald or Aquamarine in matrix)
Beryllium aluminum silicate (Be3Al2Si6O18)
mineral
Amazonite
Amazonite (KAlSi3O8)
mineral
Amazonite
Potassium Aluminum Silicate (KAlSi3O8)
mineral
Quartz (Citrine variety)
Silicon Dioxide (SiO2)
mineral
Schorl (Black Tourmaline) in Matrix
Sodium Iron Aluminum Borosilicate Hydroxide (NaFe2+3Al6Si6O18(BO3)3(OH)3OH)
mineral
Rose Quartz
Rose Quartz (SiO2 with trace Ti, Fe, or Mn)
mineral