Grey River Stone (Quartz-rich Quartzite/Siltstone)
Quartzite / Meta-siltstone (primarily SiO2)
Category
Browse mineral (man made aura treatment) specimens identified by the Rock Identifier community.
Grey River Stone (Quartz-rich Quartzite/Siltstone)
Quartzite / Meta-siltstone (primarily SiO2)
Granitic Pegmatite
Granite Pegmatite (typically containing Quartz SiO2, Feldspar KAlSi3O8, and Muscovite)
Jadeite Jade
Jadeite (NaAlSi2O6)
Serpentine (Serpentinite)
Antigorite, Lizardite, and Chrysotile: (Mg,Fe)3Si2O5(OH)4
White Marble
Recrystallized Calcite (CaCO3)
Chert (Cherty Limestone / Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Shale
Fissile mudrock (composed primarily of clay minerals and quartz)
Quartz Veined Rock (Likely Graywacke or Quartzite)
Silicon Dioxide (SiO2) veins in Metasedimentary matrix
Sodalite in Matrix (often called Blue Marble or Sodalite-Syenite)
Sodalite-bearing Syenite / Na8Al6Si6O24Cl2 (Sodalite component)
Basalt
Mafic Igneous Rock (primarily Plagioclase Feldspar and Pyroxene)
Obsidian
Volcanic Glass (SiO2 rich)
Petrified Wood
Silicified Wood (SiO2)
Red Sandstone
Arenite (predominantly Quartz with Hematite cementation)
Dragon Stone
Ohko Stone (Argillaceous sedimentary rock)
Fossilized Angel Wing Shell
Cyrtopleura costata
Amber
Succinite (fossilized tree resin)
Jasper
Jasper (Silicon Dioxide, SiO2)
Granite
Phaneritic Intrusive Igneous Rock (primarily composed of SiO2, Al2O3, K2O, Na2O)
Quartzite
Hydrothermal Quartz or Quartzite (SiO2)
Petrified Wood
Silicified Wood (SiO2)
Petrified Wood
Silicified wood (Quartz, Chalcedony, or Opal)
Graphite
Graphite (Native Carbon), Formula: C
Obsidian
Obsidian (Volcanic Glass, SiO2 + impurity)
Chert (Chert / Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Sandstone (Ferruginous)
Sandstone (primarily SiO2 with Fe2O3 cement)
Sandstone
Arenite
Psilomelane (Black Hematite/Manganese Ore)
Barium Manganese Oxide (Formula: BaMn9O18(OH)4)
Peridot in Basalt/Xenolith
Olivine (Mg, Fe)2SiO4 in Vesicular Basalt
Petrified Wood
Silicified wood (Quartz variant, SiO2)
Zoisite with Ruby (Anyolite)
Anyolite (Ca2Al3(SiO4)3(OH) + (Hb, Al, Cr)2O3)
Imperial Jasper
Silicon Dioxide (SiO2) - Microcrystalline Quartz with Mineral Inclusions
Diamond
Diamond (pure Carbon, C)
Diamond (set in Gold)
Diamond (pure carbon, C)
Agate (Dyed High-Grade Polished Slice)
Silicon dioxide (SiO2), Chalcedony crystal variety
Moss Agate
Chalcedony (SiO2) with dendritic inclusions of Manganese or Iron oxide
Yellow Agate
Agate (Microcrystalline Silicon Dioxide, SiO2)
Diamond
Diamond (pure Carbon, C)
Rose Quartz
Silicon dioxide (SiO2)
Diamond
Native Carbon (C)
Diamond
Diamond (C)
Rhodonite
Rhodonite (MnSiO3)
Diamond (Cut Specimen)
Carbon (C)