Smoky Quartz (Tumbled)
Silicon Dioxide (SiO2)
Category
Browse metamorphic, likely sedimentary with quartz veins specimens identified by the Rock Identifier community.
Smoky Quartz (Tumbled)
Silicon Dioxide (SiO2)
Quartzite River Rock (with Quartz Vein)
Quartzite (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Rhodonite
Manganese Silicate (Mn,Fe,Mg,Ca)SiO3
Epidote
Epidote (Ca2(Al,Fe)3(SiO4)3(OH))
Milky Quartz
Silicon Dioxide (SiO2)
Sandstone with Calcite Vein
Clastic sedimentary rock (primarily SiO2) with Calcium Carbonate (CaCO3) infilling
Sand (Construction Grade)
Unconsolidated siliciclastic sediment (primarily SiO2)
Sandstone (likely Arkose or Quartz Sandstone)
Clastic sedimentary rock (primarily SiO2)
Chert (Jasper/Flint variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Pyrite
Iron Sulfide (FeS2)
Granite (Dioritic or Hornblende-rich)
Phaneritic Plutonic Felsic to Intermediate Igneous Rock
Pyrite
Iron Sulfide (FeS2)
Basalt with Quartz Vein and Weathering Crust
Amygdaloidal or Porphyritic Basalt
Milky Quartz
Silicon Dioxide (SiO2)
Smoky Quartz
Smoky Quartz (Silicon Dioxide - SiO2)
Pink Rhodonite
Manganese Silicate (MnSiO3)
Blue Chalcedony
Cryptocrystalline Quartz (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Citrine
Silicon Dioxide (SiO2)
Shungite
Non-crystalline carbonoid (Shungite)
Blue Calcite
Calcium Carbonate (CaCO3)
Orange Calcite
Calcium Carbonate (CaCO3)
Blue Apatite
Apatite (Ca5(PO4)3(F,Cl,OH))
Pyrite in Shale
Iron Sulfide (FeS2)
Pyrite
Iron Sulfide (FeS2)
Chert / Flint Conglomerate
Silicified Sedimentary Breccia (primarily SiO2)
Botryoidal Chalcedony with Calcite
Chalcedony (SiO2 with accessory minerals, likely CaCO3)
Muscovite Mica
Muscovite (KAl2(AlSi3O10)(OH)2)
Green Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite
Jasper and Quartz River Pebble
Silicon Dioxide (SiO2) with impurities
Quartz in Limonite-rich Matrix
Silicon Dioxide (SiO2) with Goethite/Limonite FeO(OH)·nH2O
Fuchsite in Quartz
K(Al,Cr)2(AlSi3O10)(OH)2 (Muscovite with Chromium)
Turquoise (likely Stabilized or Dyed Howlite/Magnesite)
Hydrated phosphate of copper and aluminium - CuAl6(PO4)4(OH)8·4H2O
White Quartz Pebble
Silicon Dioxide (SiO2)
Citrine
Silicon Dioxide (SiO2) with iron impurities
Tiger's Eye
Tiger's Eye (a variety of Chalcedony, which is a microcrystalline quartz with fibrous inclusions of oxidized crocidolite)
Unakite
Epidotized Granite
Quartzite
Metamorphosed Quartz Sandstone (SiO2)
Rhodonite
Manganese Silicate (Mn,Fe,Mg,Ca)SiO3
Shale or Argillite
Shale (sedimentary) / Argillite (metamorphic)
Sandstone (likely Quartzose Sandstone)
Clastic Sedimentary Rock (primarily SiO2)