Moonstone with Black Tourmaline (Spiderweb Moonstone)
Feldspar (KAlSi3O8) with Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)
mineral
Category
Mineral (Metamorphic Pseudomorph)
Browse mineral (metamorphic pseudomorph) specimens identified by the Rock Identifier community.
Learn about Mineral (Metamorphic Pseudomorph) in the encyclopedia
View all →
Quartz
Silicon Dioxide (SiO₂)
Mineral
Feldspar (specifically Orthoclase)
Potassium Aluminum Silicate (KAlSi3O8)
mineral
Gold Ore in Matrix
Native Gold (Au) in Quartz/Host Rock
mineral
Corundum (Sapphire variant)
Aluminium oxide (Al2O3)
mineral
Smoky Quartz
Silicon Dioxide (SiO2) with aluminum impurities
mineral
Quartz (Milky/Smoky variety on matrix)
Silicon Dioxide (SiO2)
mineral
Pyrite
Iron Disulfide (FeS2)
mineral
Banded Agate (Tumbled)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
mineral
Olivine (Peridot)
Magnesium Iron Silicate (Mg, Fe)2SiO4
mineral
Quartz (Milky Quartz)
Silicon Dioxide (SiO₂)
mineral
Hematite
Iron(III) oxide (Fe2O3)
mineral
Moonstone
Orthoclase (Potassium Aluminum Silicate), Formula: (K,Na)AlSi3O8
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Pyrite
Iron Disulfide (FeS2)
Mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Quartz (Milky/Smoky variety)
Silicon Dioxide (SiO2)
mineral
Gold Ore
Native Gold (Au) in Matrix
mineral
Calcite
Calcium Carbonate (CaCO3)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Hematite
Iron(III) oxide (Fe2O3)
mineral
Jade (Nephrite or Jadeite)
Nephrite (Ca2(Mg,Fe)5Si8O22(OH)2) or Jadeite (Na(Al,Fe3+)Si2O6)
Metamorphic Rock / Mineral
Magnetite (Iron Ore)
Magnetite (Fe3O4)
mineral
Greenish Metamorphic Rock (likely containing epidote or chlorite)
Metamorphic rock, possibly epidosite or greenstone
Metamorphic
Weathered schist
Mica schist, likely chlorite–biotite schist
metamorphic
Granite Gneiss
Gneiss (containing quartz, alkali feldspar, plagioclase, biotite/amphibole)
metamorphic
Gneissic Granite
Granite Gneiss
metamorphic
Lapis Lazuli
Lapis Lazuli (Mineral composition: Lazurite, Calcite, Sodalite, and Pyrite)
metamorphic
Lapis Lazuli
Lapis Lazuli (Complex silicate rock containing Lazurite (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2, Calcite, and Pyrite)
metamorphic
Orange Quartz (Citrine Quartz)
Silicon Dioxide (SiO2) with iron impurities
mineral
Foliated Gneiss
Gneiss (Metamorphic Rock)
metamorphic
Banded gneiss pebble
Foliated gneiss, typically quartz–feldspar–mica bearing
metamorphic
Banded gneiss
Gneiss; chiefly quartz, feldspar, and mica
metamorphic
Pink Quartzite Pebble
Metamorphosed Quartz Sandstone (SiO2 with Iron Oxide impurities)
metamorphic
Blue Quartzite
Quartzite (primarily SiO2) with inclusions like Dumortierite or Crocidolite
metamorphic
Orange Quartzite / Carnelian Agate
Silicon Dioxide (SiO2)
metamorphic
Green Aventurine
Silicon Dioxide (SiO2) with Fuchsite inclusions
metamorphic
Garnet Gneiss
Garnetiferous quartzo-feldspathic gneiss
metamorphic
Clear Quartz (Rock Crystal) Bracelet
Silicon Dioxide (SiO2)
gemstone
Banded Pebble (Metamorphic Slate or Gneiss with Quartz Veining)
Metamorphic Rock with Quartz/Calcite Veins
metamorphic
Black Star Diopside (beads)
Diopside (CaMgSi2O6) - a member of the pyroxene group
Mineral
Green Aventurine and Clear Quartz Bracelet
Quartz variety with Fuchsite inclusions (Aventurine) and pure Silicon Dioxide (SiO2)
gemstone