Quartzite
Quartzite (primarily SiO2)
metamorphic
Category
Metamorphic Rock (Primarily Composed Of Minerals)
Browse metamorphic rock (primarily composed of minerals) specimens identified by the Rock Identifier community.
Learn about Metamorphic Rock (Primarily Composed Of Minerals) in the encyclopedia
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River Rock (Quartzite/Chert)
Quartzite (primarily SiO2)
metamorphic
Serpentine
Antigorite, Lizardite, or Chrysotile (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4
metamorphic
Gneiss
Gneiss
metamorphic
Unakite
Epidotized Granite
metamorphic
Pink Quartzite
Quartzite (primarily SiO2)
metamorphic
Orange Quartzite (or Iron-Stained Quartz)
Silicon Dioxide (SiO2) with Iron Oxide impurities (Fe2O3)
metamorphic
Green Quartz (Aventurine)
Silicon Dioxide with Fuchsite inclusions (SiO2 + K(Al,Cr)2(AlSi3O10)(OH)2)
mineral
Unakite
Epidotized Granite (Fe, Ca, Al silicate + KAlSi3O8)
metamorphic
Milky Quartz
Crystalline Silicon Dioxide (SiO2)
mineral
Amber
(C10H16O)n – an amorphous organic substance, primarily composed of polymerized isoprenoids.
Mineral
Pink Sapphire
Corundum (Al2O3 with trace Chromium and Iron)
mineral
Banded Schist
Mica Schist
metamorphic
Quartzite
Quartzite (primarily SiO2)
metamorphic
Yellow Quartzite
Quartzite (primarily SiO2)
metamorphic
Quartzite
Quartzite (primarily SiO2)
metamorphic
Quartzite
Quartzite (primarily SiO2)
metamorphic
Graywacke with Quartz Veins
Argillaceous Sandstone (Graywacke)
sedimentary
Quartzite River Rock
Quartzite (SiO2)
metamorphic
Granite
Granite (composed primarily of Quartz, Alkali Feldspar, and Plagioclase)
igneous
Quartz on Host Rock
Silicon Dioxide (SiO2)
Mineral Specimen
Blue Kyanite
Kyanite (Al2SiO5)
mineral
Turquoise
Turquoise - CuAl6(PO4)4(OH)8·4H2O
mineral
Diorite
Phaneritic Intermediate Plutonic Rock
igneous
Serpentinite
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4
metamorphic
Red Sandstone
Arenite (primarily Quartz with Hematite cement)
sedimentary
Quartzite
Quartzite (primarily SiO2)
metamorphic
Sulfur (in host rock)
Native Sulfur (S8)
mineral
Jade
There are two distinct minerals commonly known as Jade: Nephrite (a calcium magnesium silicate - Ca2(Mg,Fe)5Si8O22(OH)2) and Jadeite (a sodium aluminum silicate - NaAlSi2O6). Based on the image showing a typically softer, more fibrous appearance, it is likely Nephrite.
Mineral
Granite
Granite (Felsic Plutonic Rock)
igneous
Quartzite with Iron Inclusions
Metamorphosed Sandstone (SiO2 dominated)
metamorphic
Riverstone (Quartzite or Siltstone cobble)
Quartzite (primarily SiO2)
metamorphic
River Pebble (Gneiss or Quartzite)
Metamorphic rock specimen (likely Gneiss or impure Quartzite)
metamorphic
Petrified Wood
Silicified Wood (SiO2)
mineral
Sandstone (Greywacke/Lithic Sandstone)
Arenite / Lithic Sandstone
sedimentary
Diorite (Salt and Pepper Rock)
Diorite
igneous
Asphalt Concrete
Bituminous Concrete (Anthropic Rock)
sedimentary
Quartzite
Quartzite (primarily SiO2)
metamorphic
Dendritic Agate (or Dendritic Opal)
SiO2 (for Agate), SiO2·nH2O (for Opal)
Mineral
Rhodonite
Manganese silicate (Mn,Fe,Mg,Ca)SiO3
mineral
Vesuvianite (Idocrase)
Ca19(Al, Mg, Fe)13(SiO4)10(Si2O7)4(OH, F, O)10
mineral
Quartz / Quartzite
Quartzite (primarily Silicon Dioxide, SiO2)
metamorphic