Picture Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Category
Metamorphic Rock (Specifically A Rock Composed Of Minerals)
Browse metamorphic rock (specifically a rock composed of minerals) specimens identified by the Rock Identifier community.
Sandstone (Quartz-rich)
Arenite (composed primarily of SiO2)
sedimentary
Turquoise in Matrix
Hydrated phosphate of copper and aluminium: CuAl6(PO4)4(OH)8·4H2O
mineral
Sandstone
Arenite (primarily SiO2)
sedimentary
Gneiss
Gneiss (High-grade metamorphic rock typically composed of Quartz, Feldspar, and Mica/Amphibole)
metamorphic
Ruby (Pinkish-Red)
Corundum (Al2O3 with Chromium trace)
mineral
Sandstone
Clastic sedimentary rock (primarily SiO2)
sedimentary
Sandstone
Arenite
sedimentary
Lapis Lazuli
Lapis Lazuli (a rock composed primarily of Lazurite)
Metamorphic rock
Blue Apatite
Apatite-(CaF), Ca5(PO4)3F (Calcium Fluorophosphate)
mineral
Orange Quartzite / Carnelian Agate
Silicon Dioxide (SiO2)
metamorphic
Granite
Felsic Intrusive Igneous Rock
igneous
Sandstone
Clastic sedimentary rock (primarily SiO2)
sedimentary
Granite
Granite (Felsic Plutonic Rock)
igneous
Sandstone
Arenite (SiO2 based)
sedimentary
Sandstone (Ferruginous)
Arenite (primarily SiO2 with Fe2O3 staining)
sedimentary
Shale
Fissile mudrock (composed primarily of clay minerals and quartz)
sedimentary
Ferruginous Sandstone
Sandstone (rich in iron oxides/hydroxides)
sedimentary
Wishing Stone with Quartz Veins
Quartzite or Quartz-veined Metamorphic Rock (composed mainly of SiO2)
metamorphic
Pink Granite
Phaneritic Felsic Igneous Rock
igneous
Bloodstone
Heliotrope (a variety of Chalcedony, SiO₂ with inclusions)
Metamorphic Rock
Gneiss
Foliated Metamorphic Rock (Gneiss)
metamorphic
Granite
Granite (Mainly Quartz, Feldspar, and Mica)
igneous
Amethyst
SiO2 (Silicon Dioxide with Iron impurities and natural radiation influence)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Sandstone (with Iron Staining)
Clastic sedimentary rock (primarily SiO2)
sedimentary
Quartzite (River Cobble)
Metamorphic Rock (composed predominantly of SiO2)
metamorphic
Dalmatian Stone
Peralkaline Feldsphathic Igneous Rock
igneous
Granite
Phaneritic plutonic rock (approx. 20-60% quartz, 35-90% feldspar)
igneous
Micaceous Rock (likely Muscovite Schist/Gneiss or a Muscovite-rich Specimen)
Predominantly Muscovite (KAl2(AlSi3O10)(F,OH)2), often found in rocks like Muscovite Schist or Muscovite Gneiss.
Metamorphic, Mineral (within a rock type)
Shale
Fissile Mudstone (primarily composed of phyllosilicate minerals like kaolinite, montmorillonite, and illite)
sedimentary
Schist
Schist (metamorphic rock)
metamorphic
Mica Schist
Mica Schist (predominantly composed of Muscovite or Biotite silicates)
metamorphic
Sandstone
Arenite (composed primarily of SiO2)
sedimentary
Lapis Lazuli
Lazurite-rich metamorphic rock ((Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)
metamorphic
Gneiss (Metamorphic Rock)
Gneiss (variable mineral formula primarily containing Quartz, Feldspar, and Mica)
metamorphic
Quartzite
Metamorphosed Quartz Sandstone (SiO2)
metamorphic
Basalt
Extrusive mafic igneous rock; primarily (Ca,Na)(Mg,Fe,Al,Si)2O6 with (Ca,Na)(Al,Si)4O8
igneous
Shale or Argillite
Shale (fine-grained clastic sedimentary rock) or Argillite (low-grade metamorphic rock derived from shale)
Sedimentary or Metamorphic (low grade)
Diorite (Spotted or Dalmatian Stone effect)
Diorite (Intermediate Plutonic Rock)
igneous
Gneiss
High-grade metamorphic rock (Gneiss)
metamorphic
Sandstone (Micaceous)
Arenite (composed primarily of SiO2)
sedimentary