Rhodonite
Rhodonite (MnSiO3)
Category
Browse igneous or metamorphic (base stone); anthropogenic (decoration) specimens identified by the Rock Identifier community.
Rhodonite
Rhodonite (MnSiO3)
Red Garnet (likely Almandine or Pyrope)
Garnet group: X3Y2(SiO4)3 (e.g., Almandine: Fe3Al2Si3O12)
Milky Quartz
Silicon Dioxide (SiO2)
Basalt with Peridotite Inclusion
Mafic Volcanic Rock (Extrusive Igneous) with Ultramafic Xenolith
Gneiss (High-grade Metamorphic Rock)
Gneiss (Metamorphic silicate rock)
Schist
Mica Schist (Medium-grade Metamorphic Rock)
Greenschist
Greenschist
Pink Granite
Phaneritic Felsic Intrusive Igneous Rock
Schist
Mica Schist
Green Aventurine
SiO2 (Silicon Dioxide with inclusions of Fuchsite)
Gneiss
Gneiss (Metamorphic high-grade)
Biotite Schist
Biotite-rich Schist (K(Mg,Fe)3AlSi3O10(F,OH)2)
Mica Schist
Mica Schist
Amethyst
Amethyst (variety of Quartz, SiO2)
Rough Citrine Quartz
Silicon Dioxide (SiO2) with iron impurities
Rhodonite, Gray Moonstone, and White Feldspar Mix
Multiple: MnSiO3 (Rhodonite), (K,Na)AlSi3O8 (Feldspar/Moonstone)
Yellow Quartz (Citrine or Iron-stained Quartz)
Silicon Dioxide (SiO2)
Greenschist
Greenschist (Chlorite-actinolite schist)
Healer's Gold (Pyrite and Magnetite in Schist)
Magnetite (Fe3O4) and Pyrite (FeS2) in Mica Schist
Bull Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Mica Schist
Mica Schist (primarily Muscovite or Biotite KAl2(AlSi3O10)(OH)2)
Schist
Mica Schist
Granite
Granite (Felsic Plutonic Rock)
Muscovite Schist
Mica Schist (primarily KAl2(AlSi3O10)(OH)2)
Mica schist
Mica schist (Muscovite and Biotite group)
Greenschist
Greenschist (composed primarily of Chlorite, Actinolite, and Epidote)
Emerald
Beryl (Be3Al2(SiO3)6) with Chromium/Vanadium impurities
Citrine (Yellow Quartz)
Silicon Dioxide (SiO2)
Que Sera Stone (Llanite)
Rhyolite Porphyry with Blue Quartz and Feldspar
Milky Quartz
Silicon Dioxide (SiO2)
Mica Schist
Mica Schist (predominantly Muscovite or Biotite sheet silicates)
Snowflake Obsidian
Vitreous volcanic silicate (SiO2 with Cristobalite inclusions)
Citrine Quartz
Crystalline Quartz (SiO2 with iron impurities)
Ocean Jasper (Orbicular Jasper)
Silicon Dioxide (SiO2) with iron and other impurities
Green Aventurine
Quartzite with Fuchsite inclusions (SiO2 + K(Al,Cr)2AlSi3O10(OH)2)
Amphibolite (specifically Hornblende Schist/Gneiss)
Amphibole-rich Metamorphic Rock
Mica Schist
Mica Schist
Lepidolite in Quartz (or Lepidolite Ore)
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2) in Quartz (SiO2)
Arkosic Sandstone (or Conglomeritic Sandstone fragment)
Arkose (rich in feldspar)
Red Rhyolite Porphyry
Rhyolite (Porphyritic texture)
Basalt with Quartz/Calcite Vein
Amygdaloidal Basalt (matrix) with Mineral Vein filling
Green Moss Agate
Silicon Dioxide with inclusions (SiO2)