Milky Quartz
Quartz (Silicon Dioxide - SiO2)
Category
Browse metamorphic rock (variety of quartz) specimens identified by the Rock Identifier community.
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Quartzite Cobble
Quartzite (SiO2)
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2 with inclusions of Iron Oxide)
Slate
Slate (Low-grade regional metamorphic rock)
Chert (Jasper/Agate variety)
Microcrystalline Quartz (SiO2)
Tiger's Eye
SiO2 (Silicon Dioxide with inclusions of Goethite/Limonite)
Quartzite River Pebble
Metamorphosed Quartz Sandstone (SiO2)
Sandstone (with Lichen)
Arenite (primarily SiO2)
Gneiss Pebble
Gneiss (High-grade metamorphic rock)
Quartzite Pebble
Quartzite (SiO2 with minor impurities)
Quartzite
Metamorphosed Quartz Sandstone (SiO2)
Chert (Flint)
Chert (Microcrystalline or cryptocrystalline Quartz, SiO2)
Quartz (Milky/Clear Quartz)
Silicon Dioxide (SiO2)
Banded Chert (Agate/Jasper blend)
Microcrystalline Quartz (SiO2)
Pyrite Cubes in Matrix
Iron Disulfide (FeS2) in Host Matrix
Quartzite pebble
Quartzite (SiO2)
Quartzite River Rock (with Quartz Vein)
Quartzite (SiO2)
Quartzite
Quartzite (composed primarily of SiO2)
Serpentinite
Serpentinite (composed mainly of Group: Serpentine; (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4)
Serpentinite
Serpentinite (composed largely of Serpentine minerals such as Lizardite, Antigorite, and Chrysotile: Mg3Si2O5(OH)4)
Chert (Flint/Jasper variety)
Microcrystalline Quartz (SiO2)
Epidote in Quartz
Quartz with Epidote inclusions (SiO2 with Ca2(Al,Fe)3(SiO4)3(OH) inclusions)
Quartz / Quartzite
Silicon Dioxide (SiO2)
Quartzite (River Stone)
Quartzite (SiO2)
Green Aventurine
Aventurine Quartz (SiO2 with Fuchsite inclusions)
Serpentinite
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4
Chrysocolla (on host rock)
Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O (Copper silicate)
Chert (often called Flint or Jasper)
Microcrystalline or cryptocrystalline Quartz (SiO2)
Serpentine
Serpentine (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4
Quartzite Pebble
Metamorphosed Quartz Sandstone (SiO2)
Chert (Nodule)
Microcrystalline or cryptocrystalline Quartz (SiO2)
Serpentinite
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4
Sardonyx Cameo
Silicon Dioxide (SiO2) - variety Cryptocrystalline Quartz
Serpentine
Antigorite, Lizardite, or Chrysotile (Mg,Fe)3Si2O5(OH)4
Green Aventurine
Aventurine Quartz (SiO2 with inclusions)
Serpentine
Antigorite / Lizardite / Chrysotile (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4
Diopside (likely Chromian Diopside)
Diopside, part of Clinopyroxene family of inosilicates. Chemical formula: CaMgSi2O6. The green variety is often Chromian Diopside due to chromium impurities.
Gold Ore in Matrix
Native Gold (Au) in Quartz/Host Rock
Gneiss
Gneiss
Colorless Quartz (Rhinestone)
Silicon Dioxide (SiO2)
Serpentinite
Serpentinite (composed primarily of Serpentine minerals: Mg3Si2O5(OH)4)