Mica Schist
Metamorphic rock predominantly composed of muscovite or biotite with quartz and feldspar
metamorphic
Category
Sedimentary Or Metamorphic (Low Grade)
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Schist
Mica Schist
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
Muscovite Schist with Quartz
Muscovite (KAl2(AlSi3O10)(OH)2) in Quartz Matrix
metamorphic
Precious Coral
Corallium rubrum (Calcium carbonate with trace carotene)
Organic gemstone / Sedimentary mineraloid
Rough Emerald
Emerald (Beryl), Be3Al2(SiO3)6
mineral
Blue Schist / Lydian Stone / Chert with Glaucophane
Metamorphic rock containing quartz and glaucophane
metamorphic
Nephrite Jade
Ca2(Mg, Fe)5Si8O22(OH)2 (Actinolite-Tremolite series)
metamorphic
Mica Schist
Mica Schist (primarily Muscovite or Biotite KAl2(AlSi3O10)(OH)2)
metamorphic
Nuummite
Orthorhombic amphibole (Gedrite and Anthophyllite mixture) - (Mg,Fe)7Si8O22(OH)2
metamorphic
Schist
Mica Schist (primarily consisting of muscovite KAl2(AlSi3O10)(OH)2 or biotite K(Mg,Fe)3(AlSi3O10)(OH)2)
metamorphic
Chalcopyrite
CuFeS2
mineral
Carnelian / Chalcedony
Silicon Dioxide (SiO2)
mineral
Yellow Chalcedony (Agate/Chert)
Silicon Dioxide (SiO2) - Cryptocrystalline Quartz
sedimentary
Eclogite
Eclogite (omphacite-garnet rock)
metamorphic
Nephrite Jade
Nephrite (Ca2(Mg, Fe)5Si8O22(OH)2)
metamorphic
Soapstone
Steatite (primarily Talc, Mg3Si4O10(OH)2)
metamorphic
Pumice
Pumicite (Amorphous Volcanic Glass)
igneous
Dumortierite Quartz
Dumortierite (Al7BO3(SiO4)3O3 / inclusion in SiO2)
metamorphic
Emerald
Beryl (Be3Al2Si6O18), specifically the green variety colored by chromium or vanadium
Mineral (Gemstone variety of Beryl)
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Granitic Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Nuummite
Orthoamphibole (Anthophyllite-Gedrite composition)
metamorphic
Mica Schist
Mica Schist
metamorphic
Carnelian
Quartz (Variety: Chalcedony, SiO2)
gemstone
Pyrite
Iron Disulfide (FeS2)
mineral
Clear Quartz Crystal Cluster
Silicon Dioxide (SiO2)
mineral
Serpentinite
Serpentinite (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4
metamorphic
Weathered granite or granitic gneiss cobble
Granite; primarily quartz, feldspar, and mica
igneous
Schist with Quartz Vein
Mica Schist with Crystalline Quartz (SiO2)
metamorphic
Labradorite
(Ca,Na)(Al,Si)4O8
mineral
Schorl (Black Tourmaline)
Sodium Iron Aluminum Borosilicate Hydroxide - NaFe2+3Al6Si6O18(BO3)3(OH)3OH
mineral
Hypersthene
Hypersthene (Enstatite variety), (Mg,Fe)SiO3
Mineral
Lapis Lazuli
Sodalite-rich metamorphic rock containing Lazurite (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2
metamorphic
Serpentinite
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4
metamorphic
Chalcedony
Silicon Dioxide (SiO2)
mineral
Brown Chalcedony
Silicon Dioxide (SiO2)
mineral
Carnelian / Agate
Silicon Dioxide (SiO2) - Chalcedony
mineral
Grey Chalcedony (Tumbled Moon)
Microcrystalline Quartz (SiO2)
mineral
Chalcedony (Quartz)
Silicon Dioxide (SiO2)
mineral
Chrysotile Serpentine (Asbestos in Matrix)
Chrysotile Mg3Si2O5(OH)4
metamorphic
Serpentine (Green Jasper variety)
Antigorite/Chrysotile, Mg3Si2O5(OH)4
metamorphic