Quartz with Mica (Gneissic or Pegmatitic origin)
Silicon Dioxide (SiO2) with Phyllosilicates (KAl2(AlSi3O10)(F,OH)2)
Category
Browse mineral (specifically a variety of quartz) specimens identified by the Rock Identifier community.
Quartz with Mica (Gneissic or Pegmatitic origin)
Silicon Dioxide (SiO2) with Phyllosilicates (KAl2(AlSi3O10)(F,OH)2)
Quartzite Pebble
Quartzite (SiO2)
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
Optical Calcite (Iceland Spar)
Calcite (Calcium Carbonate, CaCO3)
Coarse-grained Quartz with Feldspar inclusions
Crystalline Quartz (SiO2) with Orthoclase/Plagioclase Feldspar inclusions
Rutilated Quartz
Quartz (SiO2) with Rutile inclusions (TiO2)
Quartz (Iron-stained)
Silicon Dioxide (SiO2)
Milky Quartz with Iron Staining
Silicon Dioxide (SiO2)
Quartz Pebble
Quartz (Silicon Dioxide - SiO2)
Quartz Vein / Milky Quartz
Silicon Dioxide (SiO2)
Clear Quartz Crystal
Silicon Dioxide (SiO2)
White Quartz
Silicon Dioxide (SiO2)
Chert (Chert Nodule with Cortex)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Quartzite Pebble
Metamorphosed Sandstone (SiO2)
Gneiss (specifically Granitic Gneiss)
Gneissic Metamorphic Rock
Granite (specifically Rapakivi Granite)
Phaneritic Felsic Igneous Rock (Granite)
Ruby (set in a gold pendant)
Ruby (Variety of Corundum, Al2O3)
Labradorite
Labradorite (a calcium-enriched feldspar mineral), (Ca, Na)(Al, Si)4O8
Quartz Vein in Host Rock (Likely Slate or Shale)
Hydrothermal Quartz (SiO2) in Pelitic host rock
Chert (Pink Chert / Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chalcedony
Chalcedony (SiO2)
Chert (often called Flint or Jasper)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (varieties include Flint and Jasper)
Microcrystalline or cryptocrystalline Quartz (SiO2)
Chert
Microcrystalline Quartz (SiO2)
Ferruginous Quartz (Iron-stained Quartz)
Silicon Dioxide (SiO2) with iron oxide inclusions/staining (Limonite/Hematite)
Orthoclase Feldspar
KAlSi3O8 (Potassium Aluminum Silicate)
Chert (often called Flint or River Stone)
Chert (SiO2)
Quartz (Milky or Iron-Stained)
Silicon Dioxide (SiO2)
Iceland Spar (Optical Calcite)
Calcite (Calcium Carbonate, CaCO3)
Ferrocoke or Slag
Anthropogenic pyrometallurgical residue
Basalt
Extrusive mafic igneous rock
Basalt
Mafic Igneous Rock (primarily Plagioclase Feldspar and Pyroxene)
Chert (Tan/Grey variety)
Microcrystalline or cryptocrystalline Quartz (SiO2)
Chert (Jasper/Flint variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (Arrowhead/Tool variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (Jasper/Flint variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (Jasper/Flint variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (Jasper/Flint variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (Iron-rich variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (Jasper/Flint variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (Yellow/Tan Variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (and Jasper/Flint variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)