Amazonite
Potassium Aluminum Silicate (KAlSi3O8)
mineral
Category
Sedimentary And Metamorphic Minerals
Browse sedimentary and metamorphic minerals specimens identified by the Rock Identifier community.
Orthoclase Feldspar (Twinning Specimen)
Orthoclase (KAlSi3O8)
mineral
Jade (Nephrite or Jadeite)
Nephrite (Ca2(Mg,Fe)5Si8O22(OH)2) or Jadeite (Na(Al,Fe3+)Si2O6)
Metamorphic Rock / Mineral
Black Tourmaline
Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)
mineral
Yellow Aventurine (specifically a carved crescent moon)
Silicon Dioxide (SiO2) with inclusions
mineral
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2 with iron oxides)
metamorphic
Chert (or Flint)
Silicon dioxide (SiO2)
sedimentary
Peacock Ore
Bornite (Cu5FeS4)
mineral
Sandstone
Sandstone (various mineral compositions)
Sedimentary
Mica Schist
Mica Schist (Main mineral constituents: Muscovite/Biotite, Quartz, Feldspar)
metamorphic
Zebra Jasper
Silicon Dioxide (SiO2) with iron oxide and manganese inclusions
metamorphic
Epidosite (Unakite-related)
Epidosite (predominantly Epidote, Ca2(Al2,Fe3+)(SiO4)3(OH))
metamorphic
Labradorite
Labradorite ((Ca, Na)(Al, Si)4O8)
mineral
Rhodonite
Manganese Silicate (Mn,Fe,Mg,Ca)SiO3
mineral
Rhodonite
Rhodonite (Mn,Fe,Mg,Ca)SiO3
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Green Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite mica
metamorphic
Jasper in Basalt Matrix
Silicon Dioxide (SiO2) with impurities; Chalcedony
sedimentary (secondary mineral) within igneous
Quartz (Engineered Stone Countertop)
Silicon Dioxide (SiO2) within a resin matrix
igneous
Dearest Jewelry (Multigemstone)
Combination of Diamond (C), Emerald (Be3Al2Si6O18), Amethyst/Rock Crystal (SiO2), Ruby (Al2O3), Emerald (Be3Al2Si6O18), Sapphire (Al2O3), and Topaz (Al2SiO4(F,OH)2)
Mineral
Limonite (Ironstone Concretion)
Hydrated iron(III) oxide-hydroxide (FeO(OH)·nH2O)
mineral
Quartzite with Quartz Geode / Vug
Crystalline Silicon Dioxide (SiO2) in Metamorphic Host
metamorphic
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2)
mineral
Gold Ore in Matrix
Native Gold (Au) in Quartz/Host Rock
mineral
Corundum (Sapphire variant)
Aluminium oxide (Al2O3)
mineral
Banded Agate (Tumbled)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
mineral
Gold Ore
Native Gold (Au) in Matrix
mineral
Chiastolite (Andalusite)
Al2SiO5
metamorphic
Amazonite
K(AlSi3O8) - Potassium Aluminum Silicate
mineral
Emerald with Matrix (Emerald in Mica Schist)
Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities
mineral
Asphalt (Bituminous Concrete)
Bituminous Concrete / Pavement
man-made (synthetic rock)
Tiger's Eye (Brown/Dark variety)
Pseudomorph of Quartz after Crocidolite (SiO2 with inclusions)
metamorphic
Brown Sandstone
Arenite (primarily Quartz and Feldspar, with Iron Oxide cement)
sedimentary
Sandstone
Sandstone (lithified arenite/wacke)
Sedimentary Rock
Green Quartzite
Quartzite (SiO2)
metamorphic
Quartz (Amethyst variety)
Silicon Dioxide (SiO2)
mineral
Blue Tiger's Eye (Hawk's Eye)
Silicified Crocidolite (Pseudomorph of Quartz after Crocidolite), SiO2
metamorphic
Tiger's Eye
Pseudomorph of quartz after crocidolite (SiO2 with iron inclusions)
metamorphic
Chert (variant of Flint)
Chert (SiO2)
Sedimentary
Green Aventurine
Quartzite with Fuchsite inclusions (SiO2 + K(Al,Cr)2(AlSi3O10)(OH)2)
metamorphic
Greenstone / Glauconitic Siltstone
Metabasalt or Glauconite-rich Sedimentary Rock
metamorphic or sedimentary