Quartz (Milky/Yellowish variety)
Silicon Dioxide (SiO2)
Category
Browse metamorphic rock (variety of quartz) specimens identified by the Rock Identifier community.
Quartz (Milky/Yellowish variety)
Silicon Dioxide (SiO2)
Chert (Yellow Jasper)
Silicon Dioxide (SiO2)
Unakite (Epidotized Granite)
Unakite; primarily composed of Epidote (Ca2(Al,Fe)3(SiO4)3(OH)), Orthoclase (KAlSi3O8), and Quartz (SiO2)
Green Aventurine
Silicon Dioxide (SiO2) with Fuchsite inclusions
Aventurine (likely Green Aventurine)
Silicon Dioxide (SiO2) with included minerals (Fuchsite for green)
Quartzite (River Pebble)
Metamorphic rock consisting primarily of Quartz (SiO2)
Rough Ruby
Corundum (Al2O3) with Chromium traces
River Rock (Quartzite)
Quartzite (SiO2)
Quartzite (River Cobble)
Metamorphic Rock (composed predominantly of SiO2)
Tiger's Eye
SiO2 (Silicon Dioxide with inclusions of Goethite/Limonite)
Green Aventurine
Silicon Dioxide (SiO2) with Fuchsite inclusions
Gneiss
High-grade foliated metamorphic rock
Smoky Quartz
Silicon Dioxide (SiO2)
Chert (Jasper/Flint variety)
Microcrystalline Quartz (SiO2)
Quartzite with Gneissic Banding
Quartzite (primarily SiO2) with mafic mineral inclusions
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Quartzite
Quartzite (primarily SiO2)
Quartzite
Metamorphosed Quartz Sandstone (SiO2)
Beryl (Emerald Variety)
Beryllium Aluminum Silicate (Be3Al2(SiO3)6)
Clear Quartz (Rock Crystal)
Quartz (Silicon Dioxide - SiO2)
Banded Iron Formation
Banded Iron Formation (BIF)
Amethyst (Quartz variety)
Amethyst [Silicon Dioxide (SiO2)]
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Jasper (Zebra Jasper)
Silicon Dioxide (SiO2) with impurities
Epidote in Quartz
Quartz with Epidote inclusions (SiO2 with Ca2(Al,Fe)3(SiO4)3(OH) inclusions)
Smoky Quartz
Silicon Dioxide (SiO2)
Quartzite
Quartzite (primarily SiO2)
Red Quartzite Slipper Stone
Quartzite (SiO2)
Quartz (Double-Terminated)
Silicon Dioxide (SiO2)
Quartz (Clear Quartz/Rock Crystal)
Silicon Dioxide (SiO2)
Gold Ore in Matrix
Native Gold (Au) in Quartz/Host Rock
Pink Dyed Agate (Banded Chalcedony)
Silicon dioxide (SiO2) - variety Chalcedony
Jasper River Stone
Silicon Dioxide with Iron Oxide impurities (SiO2 + Fe2O3)
Druzy Quartz Geode (likely Smokey Quartz variety)
Silicon Dioxide (SiO2) - specifically a geode formation lined with druzy quartz crystals, with a likely brownish hue indicating smokey quartz.
Green Aventurine
Aventurine Quartz (SiO2 with inclusions)
Quartzite
Quartzite (Primary mineral: Silicon Dioxide, SiO2)
Fuchsite
Chromium-rich Muscovite (K(Al,Cr)2(AlSi3O10)(OH)2)
Jasper with Quartz Veining
Silicon Dioxide (SiO2) - Opaque cryptocrystalline variety of Quartz
Blue Quartz (Dumortierite Quartz)
Quartz (SiO2) with inclusions of Dumortierite (Al7(BO3)(SiO4)3O3)
Gneiss
Gneiss (High-grade Metamorphic Rock)
Blue Calcite
Calcite (CaCO3)