Kyanite
Kyanite (Al2SiO5)
Mineral
Category
Metamorphic Rock (Composed Of Multiple Minerals)
Browse metamorphic rock (composed of multiple minerals) specimens identified by the Rock Identifier community.
Granite Pebble
Granite (composition of Quartz, Alkali Feldspar, and Plagioclase)
igneous
Mica-rich Sandstone or Micaceous Schist Weathering
Micaceous Schist (Muscovite-Quartz composition)
Metamorphic or Sedimentary depending on local grade
Black Spinel
Magnesium Aluminum Oxide (MgAl2O4)
mineral
Greenstone (Metabaltic/Greenschist)
Chlorite schist / Meta-basalt
metamorphic
Orthoclase Feldspar
Potassium Feldspar (KAlSi3O8)
mineral
Basalt with Scoria
Amygdaloidal Basalt / Vesicular Basalt
igneous
Sodalite
Sodalite (Na4Al3Si3O12Cl)
Mineral
Sandstone (Ferruginous/Banded)
Clastic Terrigenous Sandstone (SiO2 with Fe2O3 cement)
sedimentary
Quartz Geode Fragment
Silicon Dioxide (SiO2)
mineral
Quartz Druzy Geode
Silicon Dioxide (SiO2)
mineral
Schist (Micaceous Schist)
Mica Schist
metamorphic
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Orthoclase Feldspar
KAlSi3O8 (Potassium Aluminum Silicate)
mineral
Orthoclase Feldspar
Potassium aluminum silicate (KAlSi3O8)
mineral
Granodiorite
Granodiorite (intermediate intrusive igneous rock)
igneous
Turquoise
Hydrated phosphate of copper and aluminum (CuAl6(PO4)4(OH)8·4H2O)
mineral
Shale (Beach-worn)
Laminated Pelite (primarily clay minerals and quartz)
sedimentary
Septarian Nodule
Septarian Nodule (Mixture of Calcite, Aragonite, and Limestone/Clay)
sedimentary
Phyllite
Phyllite (Foliated metamorphic rock)
metamorphic
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Corundum (Sapphire in Host Rock)
Corundum (Aluminum Oxide, Al2O3)
mineral
Quartz (Citrine or Iron-Stained variety)
Silicon Dioxide (SiO2)
mineral
Quartz (specifically Milky or Clear Quartz)
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz / Silicon Dioxide (SiO2)
mineral
Lava Stone and Chakra Beads
Basalt (with various mineral/synthetic beads)
igneous
Pink Granite
Phaneritic Plutonic Igneous Rock (composed of K-feldspar, Quartz, and Mica)
igneous
Smoky Quartz (Tumbled)
Smoky Quartz (SiO2 - Silicon Dioxide)
mineral
Greenschist / Greenstone
Greenschist facies metabasite
metamorphic
Granite (likely a river or beach pebble)
Granite (a felsic intrusive igneous rock primarily composed of quartz, feldspar, and mica)
Igneous
Quartz (Clear Quartz/Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Granitic Gneiss
Gneiss (containing Potassium Feldspar and Quartz)
metamorphic
Olivine (Peridot)
Magnesium Iron Silicate (Mg, Fe)2SiO4
mineral
Pyrite (Iron Pyrites)
Iron Sulfide (FeS2)
mineral
Dragon Stone (Dragon Blood Jasper)
Epidote with Pietersite or Red Jasper inclusions (varied SiO2 and Ca2(Al,Fe)3(SiO4)3(OH))
metamorphic
Greenstone
Metabasalt / Chlorite-Epidote Schist
metamorphic
Quartzite with inclusions
Quartzite (primarily SiO2)
metamorphic
Milky Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Vesicular Basalt (or Scoria)
Vesicular Basalt (Aphanitic-vesicular volcanic rock)
igneous
Agate
Silicon Dioxide (SiO2) - Chalcedony variant
mineral
Sandstone (Ferruginous)
Arenite (SiO2 with iron oxide impurities)
sedimentary