Tiger's Eye
Silicon Dioxide with Crocidolite (SiO2)
Category
Browse metamorphic rock (variety of quartz) specimens identified by the Rock Identifier community.
Tiger's Eye
Silicon Dioxide with Crocidolite (SiO2)
Quartzite
Metamorphosed Quartz Sandstone (SiO2)
Quartzite
Quartzite (primarily SiO2)
Quartzite
Quartzite (SiO2)
Quartzite
Quartzite (composed primarily of silica, SiO2)
Pink Quartz (Inclusion-rich Quartzite)
SiO2 (Silicon Dioxide) with Iron Oxide / Hematite inclusions
Quartzite
Quartzite (SiO2)
Quartzite Cobble
Quartzite (SiO2)
Chert (Common Opal/Agate variety)
Microcrystalline Quartz (SiO2)
Yellow Quartzite (River Pebble)
Quartzite (mainly SiO2)
Blue Aventurine
Silicon Dioxide (SiO2) with inclusions of Dumortierite
Thulite in Matrix
Pink Zoisite - Ca2Al3(SiO4)3(OH)
Quartzite
Quartzite (primarily SiO2)
Quartzite
Quartzite (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
White Quartz
Silicon Dioxide (SiO2)
Ruby
Corundum (Al2O3 with Chromium impurities)
Banded Gneiss (Variety of Gneiss)
Gneiss (specifically, a variety exhibiting prominent banding; mineral composition can vary, but often contains quartz, feldspar, mica, and amphibole)
Quartz on Host Rock
Silicon Dioxide (SiO2)
Aventurine
Silicon Dioxide (SiO2) with Fuchsite inclusions
Chert (Jasper/Agate mix)
Microcrystalline Quartz (SiO2)
Red Quartzite
Quartzite (primarily SiO2)
Quartz Vein in Host Rock
Silicon Dioxide (SiO2)
Jasper (brecciated or orbicular variety)
Silicon dioxide (SiO2) with iron oxide inclusions
Quartz (Clear Quartz/Rock Crystal)
Silicon Dioxide (SiO2)
Chert (Flint/Jasper variety)
Microcrystalline quartz (SiO2)
Quartz (Vein Quartz)
Silicon Dioxide (SiO2)
Epidote
Epidote Group (e.g., Clinozoisite, Epidote, Piemontite), Epidote formula: Ca2(Al,Fe)3(SiO4)3(OH)
Multi-gemstone Quartz and Fluorite Bracelet
Silicon Dioxide (SiO2) and Calcium Fluoride (CaF2)
Green Jasper with Agate Banding
Silicon Dioxide (SiO2) with impurities of ferrous silicate or chlorite
Quartzite Pebbler
Quartzite (mainly SiO2)
Gneiss (Metamorphic Rock)
Gneiss (variable mineral formula primarily containing Quartz, Feldspar, and Mica)
Clear Quartz
Silicon Dioxide (SiO2)
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
Quartzite
Quartzite (SiO2)
Quartz (Milky or Cloudy variety)
Silicon Dioxide (SiO2)
Gneiss
Gneiss (High-grade metamorphic rock)
Amazonite
KAlSi3O8 (Potassium Aluminum Silicate) - a variety of Microcline Feldspar
Quartzite River Rock
Quartzite (primarily SiO2)
Quartzite
Quartzite (SiO2)
Chert (Gravel Bit)
Microcrystalline silica (SiO2)
Quartzite (Iron-stained River Rock)
Metamorphic Rock consisting primarily of Quartz (SiO2)