Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Category
Metamorphic (Pseudo Igneous)
Browse metamorphic (pseudo igneous) specimens identified by the Rock Identifier community.
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Bi-Color Tourmaline (or Watermelon Tourmaline)
Tourmaline (complex borosilicate mineral group with general formula AD3G6(BO3)3T6O18(OH,O)4)
Mineral
Graphite
Graphite (Carbon, C)
Mineral
Black Tourmaline (Schorl)
Schorl (Na(Fe^2+)3Al6(Si6O18)(BO3)3)(OH)3(OH))
mineral
Marble
Metamorphosed Limestone/Dolomite
metamorphic
Quartz (likely Milky Quartz or Chalcedony)
Quartz (SiO2 - Silicon Dioxide)
Mineral
Gneiss (likely)
Gneiss
Metamorphic
Quartz
Quartz (SiO₂ - Silicon Dioxide)
Mineral
Quartz
Quartz (SiO₂)
mineral
Magnetite
Magnetite (Fe3O4)
Mineral
Orange Quartz with Hematite inclusions
Quartz (SiO2) with Hematite (Fe2O3) inclusions
Mineral
Black Tourmaline
Schorl (Na(Fe²⁺)₃Al₆(BO₃)₃Si₆O₁₈(OH)₄)
mineral
Milky Quartz with Iron Inclusions
Quartz (Silicon Dioxide, SiO2)
mineral
Moonstone (bead form)
Potassium Aluminum Silicate (KAlSi3O8) - a variety of Orthoclase Feldspar
Mineral
Quartz (likely a clear or rock crystal variety)
Quartz (SiO2 - Silicon Dioxide)
Mineral
Pegmatite (likely Granitic Pegmatite)
Pegmatite (a coarse-grained igneous rock, often with granitic composition)
igneous
Milky Quartz
Quartz (SiO2)
Mineral
Quartz
Quartz (SiO2 - Silicon Dioxide)
Mineral
Quartz
Quartz (SiO₂ - Silicon Dioxide)
Mineral
Greenstone (Greywacke or Nephrite Jade variant)
Metamorphosed mafic igneous or sedimentary rock (e.g., Actinolite-Chlorite Schist)
metamorphic
Quartz (various varieties)
SiO₂ (Silicon Dioxide)
Mineral
Serpentine Schist with Quartz Vein
Serpentine Schist (a type of Metamorphic rock). The white band is likely Quartz (SiO2).
Metamorphic
Quartz with Mica Schist (Pegmatite Specimen)
SiO2 (Silicon Dioxide) and Phyllosilicates (Biotite/Muscovite)
Igneous/Metamorphic Hybrid
Zircon
Zircon (ZrSiO4)
Mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Granite or Granitic Gneiss Pebble
Granite (felsic intrusive igneous rock) or Gneiss
Igneous or Metamorphic
Greenish rock with white veins, possibly epidote or chlorite bearing rock with quartz/calcite veins
Altered mafic rock or Epidosite
metamorphic or igneous alteration
Calcite
Calcite (CaCO3)
mineral
Beryl (Variety Mix)
Be3Al2(Si6O18)
Mineral
Banded Gneiss
Gneiss (pronounced 'nice')
metamorphic
Smoky Quartz
Smoky Quartz (SiO2)
Mineral
Marble
Marble (primarily Calcite, CaCO3 or Dolomite, CaMg(CO3)2)
Metamorphic Rock
Quartz Vein in Host Rock (often Granite or Schist)
Silicon Dioxide (SiO2) within host matrix
mineral with metamorphic or igneous host
Quartz
Silicon Dioxide (SiO₂)
Mineral
Rose Quartz
Rose Quartz (SiO2)
mineral
Apatite
Apatite Group (e.g., Fluorapatite Ca5(PO4)3F, Chlorapatite Ca5(PO4)3Cl, Hydroxylapatite Ca5(PO4)3(OH))
mineral
Rock Crystal Quartz
Quartz (SiO₂)
Mineral
Serpentine
Serpentinite (a rock composed primarily of serpentine minerals like antigorite, chrysotile, and lizardite; general formula (Mg, Fe)3Si2O5(OH)4)
metamorphic
Mixed Quartz and River Pebbles (Stone Collection)
Mixed assortment containing mainly Silicon Dioxide (SiO2)
igneous, sedimentary, metamorphic, and mineral
Mica (likely Muscovite)
Muscovite / KAl2(AlSi3O10)(OH)2
mineral
Pyrite
Pyrite (Iron sulfide, FeS₂)
mineral
Quartz
Silicon Dioxide (SiO2)
Mineral