Greenstone / Serpentinite
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)3(Si, Al, Fe)2O5(OH)4
Category
Browse metamorphic rock (variety of quartz) specimens identified by the Rock Identifier community.
Greenstone / Serpentinite
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)3(Si, Al, Fe)2O5(OH)4
Citrine Quartz Cluster
Silicon Dioxide (SiO2)
Rose Quartz
Silicon dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Citrine Quartz
Quartz (SiO2) - specifically, a variety of macrocrystalline quartz
Quartzite (River Pebble)
Meta-quartzite (composed primarily of SiO2)
Rose Quartz
Silicon Dioxide (SiO2)
Quartzite
Quartzite (primarily SiO2)
Tiger's Eye
Silicon dioxide (SiO2) - Pseudomorph after crocidolite
Red Jasper
Silicate (SiO2 with Hematite impurities)
Clear Quartz
Silicon Dioxide (SiO2)
Quartzite (Orthoquartzite)
Quartzite (SiO2)
White Quartz
Silicon Dioxide (SiO2)
Yellow Jasper
Silicon Dioxide (SiO2) with iron hydroxides (Goethite/Limonite)
Quartzite
Quartzite (primarily SiO2)
Chert (Nodule)
Silicon Dioxide (SiO2)
Serpentine
Antigorite/Lizardite (Mg,Fe)3Si2O5(OH)4
Quartz (Milky/Crystalline variety)
Silicon Dioxide (SiO2)
Quartzite Pebble
Metamorphic rock primarily composed of Silicon Dioxide (SiO2)
Yellow Quartz River Pebble
Silicon Dioxide (SiO2)
Serpentine
Serpentinite (Mg, Fe, Ni)3Si2O5(OH)4
Chert (Jasper variety)
Silicon Dioxide (SiO2)
Chert
Chert (Microcrystalline Quartz, SiO2)
Tiger's Eye (Multicolor/Variegated)
Pseudomorph of Quartz after Crocidolite (SiO2 with iron oxides)
Quartz (Small Fragment)
Silicon Dioxide (SiO2)
Blue Chalcedony
Cryptocrystalline Quartz (SiO2)
Quartz
Silicon Dioxide (SiO2)
Banded Agate (Lace Agate)
Agate (Variety of Cryptocrystalline Quartz), SiO2
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Quartzite
Quartzite (primarily SiO2)
Quartz Vein in Host Rock
Silicon Dioxide (SiO2) within Sedimentary/Metamorphic Matrix
Pink Quartzite
Quartzite (primarily SiO2)
Pink Quartzite
Quartzite (primarily SiO2)
Quartzite
Quartzite (High-purity SiO2)
Quartzite
Metamorphosed Quartz Sandstone (SiO2)
Quartz (Milky and Smoky variety)
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Orange Aventurine (Sunstone-style Quartzite)
Silicon Dioxide (SiO2) with Goethite or Hematite inclusions
Quartzite
Quartzite (SiO2)
Quartzite
Quartzite (primarily SiO2)
Rose Quartz
Silicon Dioxide (SiO2)
Quartzite
Quartzite (SiO2)
Anthracite Coal
Anthracite (Carbon-based sedimentary-derived metamorphic rock)