Tiger Iron
Tiger Iron (Hematite, Red Jasper, and Chert/Tiger's Eye composite)
Category
Browse anthropic metallic specimen specimens identified by the Rock Identifier community.
Tiger Iron
Tiger Iron (Hematite, Red Jasper, and Chert/Tiger's Eye composite)
Basalt
Basalt (Mafic volcanic rock)
Fluorite
Calcium Fluoride (CaF2)
Basalt
Basalt
Coal (Anthracite or Bituminous)
Carbon (C) with varying hydrocarbon and mineral impurities
Basalt
Extrusive mafic igneous rock
Schist
Mica Schist
Anthracite Coal
Anthracite (Carbon-rich metamorphic coal)
Basalt
Mafic volcanic rock (various silicate minerals including Pyroxene and Plagioclase)
Mica Schist
Mica Schist (primarily Muscovite or Biotite KAl2(AlSi3O10)(OH)2)
Moqui Marble (Ironstone Concretion)
Goethite-limonite concretion (primarily FeO(OH) with Sandstone)
Basalt
Basalt (Mafic volcanic rock)
Lapis Lazuli
Lapis Lazuli (Primary mineral: Lazurite, (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)
Proustite
Proustite (Ag3AsS3)
Sodalite
Sodalite - Na8(Al6Si6O24)Cl2
Aventurine (Green)
Silicon Dioxide (Quartz) with inclusions typically of Fuchsite; SiO2
Basalt
Basalt (Composition primarily Plagioclase feldspar, Pyroxene, and Olivine)
Basalt
Basalt (Mafic Extrusive Igneous Rock)
Fluorite (Rainbow or Multi-colored Fluorite)
Fluorite (Calcium Fluoride - CaF2)
Banded Iron Formation (BIF)
Banded Iron Formation (Fe2O3 + SiO2)
Black Tourmaline (Schorl)
Schorl (Sodium iron silicate hydroxide boron silicate); NaFe3Al6(BO3)3Si6O18(OH)4
Green Aventurine
Aventurine Quartz (SiO2 with Fuchsite inclusions)
Sunstone
Plagioclase Feldspar ((Ca,Na)(Al,Si)4O8)
Sunstone
Oligoclase or Andesine (Labradorite) Feldspar (Na,Ca)(Si,Al)4O8
Quartzite
Metamorphosed Quartz Sandstone (SiO2)
Anthracite Coal
Anthracite (Carbon-based metamorphic rock)
Chondrite
Ordinary Chondrite (L or H group)
Mica Schist with Quartz
Mica Schist (primarily Muscovite or Biotite with Quartz)
Banded Iron Formation (Chert/Hematite)
Banded Iron Formation (BIF)
Basalt
Mafic Igneous Rock (composed primarily of Pyroxene and Plagioclase Feldspar)
Schist
Chlorite/Mica Schist
Green Aventurine
Aventurine Quartz (SiO2 with Fuchsite inclusions)
Green Aventurine
Aventurine Quartz (SiO2 with Fuchsite inclusions)
Aventurine (Green Quartz)
Silicon Dioxide (SiO2) with inclusions of Fuchsite (Mica)
Basalt
Basalt (Mafic Extrusive Igneous Rock)
Basalt
Extrusive Igneous Rock (Mafic)
Slag
Anthropogenic Vitrophyre (Iron or Smelting Slag)
Mica Schist
Muscovite/Biotite Schist
Vesicular Basalt
Extrusive Mafic Volcanic Rock
Green Aventurine
Aventurine Quartz (SiO2 with Fuchsite inclusions)
Limonite (Iron Ore)
FeO(OH)·nH2O
Basalt
Basalt (Aphanitic Mafic Igneous Rock)