Sandstone (Micaceous)
Clastic Sedimentary Rock (primarily SiO2 with Mica)
Category
Browse metamorphic rock (variety of quartz) specimens identified by the Rock Identifier community.
Sandstone (Micaceous)
Clastic Sedimentary Rock (primarily SiO2 with Mica)
Sandstone
Arenite (SiO2, often with CaCO3 or Fe2O3 cement)
Amethyst
Quartz (SiO2) variety
Chert Nodule
Microcrystalline Quartz (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Quartzite
Quartzite (primarily SiO2)
Gold-bearing Quartz
Auriferous Quartz (SiO2 with Native Gold inclusion)
Clear Quartz
Silicon Dioxide (SiO2)
Ruby (Rough/Raw)
Corundum (Al2O3:Cr)
Quartzite
Quartzite (predominantly SiO2)
Epidote
Epidote (formula: Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))
Jasper (Red and Yellow)
Silicon Dioxide (SiO2) with iron oxide impurities
Limonitic Quartzite
Metamorphosed sandstone with Limonite (FeO(OH)·nH2O) staining
Quartzite (with Quartz Veining)
Quartzite (SiO2)
Quartzite (Quartz-rich Cobble)
Quartzite (SiO2)
Rough Corundum (Sapphire/Ruby mixture)
Corundum (Aluminum Oxide, Al2O3)
Quartzite (clastic/metamorphic subtype)
Quartzite (primarily Silicon Dioxide, SiO2)
Blue Lace Agate
Chalcedony (a form of Quartz) - SiO2
Quartzite
Metamorphic Quartzite (predominantly SiO2)
Jasper with Quartz inclusions
Silicon Dioxide (SiO2)
Quartzite with Mafic Intrusion (Gneiss/Schist Contact)
Metamorphic Quartzite (SiO2) with Amphibole/Biotite Schist
Quartzite
Metamorphosed Quartz Sandstone (SiO2)
Milky Quartz (Water-worn Pebble)
Silicon Dioxide (SiO2)
Quartz (Milky or Cloudy variety)
Silicon Dioxide (SiO2)
Quartzite with Garnet
Garnetiferous Quartzite (SiO2 + X3Y2(SiO4)3)
Quartz with Iron Staining
Silicon Dioxide (SiO2) with Limonite/Hematite inclusions
Quartzite
Quartzite (SiO2)
Quartzite
Quartzite (primarily SiO2)
Quartzite
Quartzite (SiO2)
Yellow Chert
Microcrystalline Quartz (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Chert / Flint
Microcrystalline Quartz (SiO2)
Serpentine (Green Jasper variety)
Antigorite/Chrysotile, Mg3Si2O5(OH)4
Quartz with Mica inclusions (likely Schist or Gneiss host)
Silicon Dioxide (SiO2) with Phyllosilicates (KAl2(AlSi3O10)(OH)2)
Rose Quartz
Rose Quartz (SiO2)
Yellow Quartzite
Quartzite (primarily SiO2)
Milky Quartz
Quartz (Silica / Silicon Dioxide), SiO2
Quartzite
Quartzite (SiO2)
Quartzite
Quartzite (Primary mineral: SiO2)
Quartz (Milky or White Quartz)
Silicon Dioxide (SiO2)
Amethyst
Amethyst (variety of Quartz, SiO2)