Quartzite
Quartzite (primarily SiO₂)
metamorphic
Category
Metamorphic Mineral
Browse metamorphic mineral specimens identified by the Rock Identifier community.
Quartzite (specifically Pink or Red Quartzite)
Metamorphosed Quartz Sandstone (SiO2)
metamorphic
Marble
Crystalline Limestone (mostly CaCO3 / Calcium Carbonate)
metamorphic
Sapphire (Corundum)
Corundum (Al2O3), variety Sapphire
Mineral
Anthracite Coal
Anthracite (Carbon-based organic sedimentary rock transitioned to metamorphic)
metamorphic
Quartz Vein with Host Rock (Greywacke/Siltstone)
Silicon Dioxide (SiO2) within Clastic Sedimentary/Metamorphic Matrix
metamorphic
Slate
Foliated Metamorphic Rock (primarily composed of quartz, illite, and chlorite)
metamorphic
Slate
Foliated Metamorphic Rock (primarily composed of quartz, illite, and chlorite)
metamorphic
Quartzite (Yellow/Orange variety)
Quartzite (primarily SiO2)
metamorphic
Quartzite
Quartzite (primarily SiO2)
metamorphic
Quartzite
Quartzite (SiO2 silicon dioxide)
metamorphic
Quartzite
Quartzite (SiO2)
metamorphic
Jade (Nephrite or Jadeite)
Nephrite (Ca2(Mg,Fe)5Si8O22(OH)2 - a variety of actinolite, an amphibole mineral); Jadeite (Na(Al,Fe3+)Si2O6 - a pyroxene mineral)
Metamorphic rock (for both Nephrite and Jadeite)
Quartzite
Quartzite (primarily SiO2)
metamorphic
Quartzite
Quartzite (primarily SiO2)
metamorphic
Zebra Jasper (usually a trade name for Serpentine or Basalt blend)
Antigorite/Chrysotile (Serpentine family) - Mg3Si2O5(OH)4
metamorphic
Shale or Argillite
Shale (fine-grained clastic sedimentary rock) or Argillite (low-grade metamorphic rock derived from shale)
Sedimentary or Metamorphic (low grade)
Quartzite
Quartzite (primarily SiO2)
metamorphic
Quartzite Beach Pebble
Quartzite (primarily SiO2)
metamorphic
Unakite
Epidotized Granite
metamorphic
Agate
Agate (Cryptocrystalline Variety of Quartz, SiO2)
Mineral
Quartzite
Quartzite (SiO2)
metamorphic
Strawberry Quartz
Quartz (SiO₂) with Goethite (α-FeO(OH)) and/or Lepidocrocite (γ-FeO(OH)) inclusions
Mineral
Quartzite
Quartzite
Metamorphic rock
Jade (specifically Nephrite or Jadeite beads)
Nephrite (Ca2(Mg, Fe)5Si8O22(OH)2) or Jadeite (NaAlSi2O6)
metamorphic
Quartzite
Quartzite
Metamorphic
Slate
Slate (Regional metamorphic rock composed primarily of quartz, illite, and chlorite)
metamorphic
Pink Quartzite
Quartzite (SiO2 with iron oxide inclusions)
metamorphic
Quartzite
Quartzite (SiO2)
Metamorphic
Fluorite Bracelet (light green beads) and possibly Lavender Jadeite (purple bead)
Fluorite: CaF₂ (Calcium Fluoride); Jadeite: NaAlSi₂O₆ (Sodium Aluminum Silicate)
Mineral for Fluorite; Mineral/Rock for Jadeite (as it's often a rock composed primarily of jadeite mineral)
Quartzite
Quartzite (primarily SiO2)
metamorphic
Quartzite
Quartzite (primarily SiO2)
metamorphic
Jasper and Quartzite Pebble
Silicon Dioxide (SiO2) - Microcrystalline Quartz
sedimentary/metamorphic
Shale or Slate with Quartz Veins
Shale (fine-grained clastic sedimentary rock) or Slate (low-grade metamorphic rock formed from shale) with Quartz (SiO2) veins
Metamorphic, likely Sedimentary with Quartz veins
Anthracite Coal
Anthracite (Carbon-rich metamorphic coal)
sedimentary
Green Aventurine
Quartz (SiO2) with Fuchsite inclusions
Mineral
Serpentinite
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4
metamorphic
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2)
metamorphic
Serpentinite
Serpentinite (complex silicate of magnesium, (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4)
metamorphic
Amethyst
SiO2 (Silicon Dioxide) - a variety of Quartz
Mineral
Slate
Slate (foliated metamorphic rock, primarily composed of quartz, illite, chlorite, and micas)
metamorphic
Micaceous Sandstone or Quartzite
Sandstone (lithified quartz grains, often with mica) or Quartzite (metamorphosed sandstone)
Sedimentary or Metamorphic