Granite with Epidote
Granite, containing quartz, feldspar, and epidote
Category
Browse metamorphic rock (variety of quartz) specimens identified by the Rock Identifier community.
Granite with Epidote
Granite, containing quartz, feldspar, and epidote
Quartzite Pebble
Quartzite (SiO2)
Quartzite
Metamorphic Quartz (SiO2)
Quartz Vein in Host Rock (Gneiss/Schist)
Silicon Dioxide (SiO2) within a metamorphic matrix
Chert (Common Opal/Jasper variety)
Microcrystalline Quartz (SiO2)
Carnelian (Orange Chalcedony)
Silicon Dioxide (SiO2)
Quartz Vein in Host Rock
Silicon Dioxide (SiO2) in Altered Host Rock
Quartzite
Quartzite (SiO2)
Quartzite
Quartzite (SiO2)
Quartzite
Metamorphic Quartzite (primarily SiO2)
Quartzite
Quartzite (SiO2)
Garnet Schist or Garnet-bearing Quartzite
Metamorphic rock containing Almandine Garnet (Fe3Al2(SiO4)3) and Quartz (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Milky Quartz with Iron Staining
Silicon Dioxide (SiO2)
Serpentinite
Serpentinite (composed primarily of Serpentine group minerals (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4)
Quartz (Yellow/Citrine variety)
Crystalline Silicon Dioxide (SiO2)
Milky Quartz Pebble
Quartz (Silicon Dioxide - SiO2)
Fuchsite Gneiss (Green Quartzite)
Chromium-rich Muscovite (KAl2(AlSi3O10)(OH)2 with Cr replacements)
Quartzite
Quartzite (mostly SiO2)
Green Quartzite (Aventurine variety)
Silicon Dioxide (SiO2) with inclusions of Fuchsite
Epidote
Epidote ({Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH))
Quartzite
Quartzite (SiO2)
Gneiss
Foliated Metamorphic Rock
Banded Gneiss
Gneiss (Metamorphic Rock)
Quartz
Silicon Dioxide (SiO2)
Venetian Gold Granite
Phaneritic Felsic Igneous Rock (Granite)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz (Smoky/Milky variety)
Silicon Dioxide (SiO2)
Tiger's Eye
Silicon Dioxide (SiO2) with Crocidolite inclusions
Dalmation Stone (often called Dalmatian Jasper)
Antiperthite-rich Microgranite
Citrine Quartz
Silicon Dioxide (SiO2)
Quartzite
SiO2 (Metamorphosed Sandstone)
Milky Quartz with Iron Inclusions
Silicon Dioxide (SiO2)
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
Agate
Silicon Dioxide (SiO2)
Quartzite
Quartzite (SiO2)
Serpentine
Antigorite/Chrysotile/Lizardite (Mg,Fe)3Si2O5(OH)4
Citrine
Quartz (SiO2) - variety Citrine
Quartz (Smoky/Grey variety)
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silica / Silicon Dioxide, SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Sandstone
Quartz Sandstone (predominantly)