Lapis Lazuli
Lazurite-rich metamorphic rock (complex silicate)
metamorphic
Category
Metamorphic Or Mineral
Browse metamorphic or mineral specimens identified by the Rock Identifier community.
Anthracite Coal
Anthracite (Carbon-rich Sedimentary-to-Metamorphic Rock)
metamorphic
White Marble
Metamorphosed Limestone (principally CaCO3)
metamorphic
Peridot (Olivine)
Olivine ((Mg,Fe)2SiO4)
Mineral
Aventurine (likely Green Aventurine)
Quartz (SiO2) with included minerals (Fuchsite or Chlorite for green color)
Mineral
Mixed Chalcedony and Jasper Bracelet (possibly 'Ocean Jasper' or similar banded variety for brown beads, and blue/grey Chalcedony for the translucent beads)
Chalcedony (SiO2), Jasper (SiO2 with impurities)
Mineral (specifically a cryptocrystalline variety of Quartz)
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2)
metamorphic
Jade (Jadeite or Nephrite)
Jadeite (NaAlSi2O6) or Nephrite (Ca2(Mg,Fe)5Si8O22(OH)2)
metamorphic
Jadeite (Jade)
Jadeite (NaAlSi2O6)
metamorphic
Dragon Blood Jasper
Epidote with Red Piedmontite (Chalcedony/Quartz variant)
sedimentary
Quartzite Pebble
Metamorphic rock predominantly composed of Quartz (SiO2)
metamorphic
Red Quartzite River Stone
Metamorphic Rock (composed mainly of Quartz, SiO2)
metamorphic
Quartzite (Milky)
Metamorphic rock predominantly composed of Quartz (SiO2)
metamorphic
Slate
Slate (Low-grade foliated metamorphic rock)
metamorphic
River Pebble (Likely Quartzite or Chalcedony)
Silicon Dioxide (SiO2) - granular metamorphic variety
metamorphic
Anthracite Coal
Anthracite (Carbon-based sedimentary-metamorphic rock)
metamorphic
Pink Quartzite Pebble
Metamorphic Quartzite (SiO2 with iron oxide inclusions)
metamorphic
Marble (polished)
Recrystallized Calcite (CaCO3)
metamorphic
Pegmatite (likely Granitic Pegmatite)
Pegmatite (a coarse-grained igneous rock, often with granitic composition)
igneous
Gneiss
Gneiss
metamorphic
Green Aventurine
Silicon Dioxide (SiO2) with Fuchsite inclusions
metamorphic
Quartzite
Quartzite (SiO2)
metamorphic
Green Aventurine
Quartzite with Fuchsite inclusions (SiO2 + K(Al,Cr)2AlSi3O10(OH)2)
metamorphic
Green Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite mica
metamorphic
![Mica Schist (Mica Schist (primarily Muscovite [KAl2(AlSi3O10)(OH)2] or Biotite)) — metamorphic](https://media.rockidentification.com/cde02de2-2d7b-4875-a7ad-bd7d41ea40c0-thumbnail.jpg)
Mica Schist
Mica Schist (primarily Muscovite [KAl2(AlSi3O10)(OH)2] or Biotite)
metamorphic
Soapstone
Steatite (primarily composed of Talc, Mg₃Si₄O₁₀(OH)₂)
Metamorphic Rock
Almandine Garnet in Matrix
Almandine, Fe3Al2(SiO4)3
metamorphic
Ferruginous Quartzite (Red Chert/Jasper-like)
Metamorphosed Quartzite with Hematite inclusions (SiO2 + Fe2O3)
metamorphic
Quartzite
Quartzite (primarily SiO2)
metamorphic
Nephrite Jade
Nephrite (Ca2(Mg, Fe)5Si8O22(OH)2)
metamorphic
Quartzite
Quartzite (primarily SiO2)
metamorphic
Red Quartzite
Quartzite (primarily SiO2)
metamorphic
Quartzite
Quartzite (primarily Silicon Dioxide, SiO2)
metamorphic
Quartzite
Quartzite (SiO2)
metamorphic
Nuummite
Orthoamphibole (mixture of Anthophyllite and Gedrite)
metamorphic
Garnet (Almandine)
Almandine (Fe3Al2(SiO4)3)
metamorphic
Quartzite (River Cobble)
Quartzite (predominantly SiO2)
metamorphic
Quartzite River Rock
Quartzite (primarily SiO2)
metamorphic
Dalmatian Stone
Dalmatian Jasper (a misnomer) / Perthitic Igneous Rock
igneous
Greywacke (Briarcliff Schist/Gneiss)
Manhattan Schist / Fordham Gneiss complex
metamorphic
Green Aventurine
Quartzite with Fuchsite inclusions (SiO2 + K(Al,Cr)3Si3O10(OH)2)
metamorphic
Porcelain (White Ceramic)
Mullite-bearing Vitrified Ceramic (Major phases: Mullite Al6Si2O13, Glassy Silica SiO2)
metamorphic