Emerald
Beryl (Be3Al2(SiO3)6) with Chromium/Vanadium impurities
mineral
Category
Metamorphic Or Sedimentary Depending On Local Grade
Browse metamorphic or sedimentary depending on local grade specimens identified by the Rock Identifier community.
Learn about Metamorphic Or Sedimentary Depending On Local Grade in the encyclopedia
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Jadeite (Jade Ring)
NaAlSi2O6 (Sodium Aluminum Silicate)
metamorphic
Rhodonite
Rhodonite (Manganese Iron Magnesium Calcium Silicate - Mn%,Fe%,Mg,Ca)SiO₃
mineral
Milky Quartz with Iron Staining
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Fuchsite
Fuchsite (a variety of Muscovite mica, K(Al,Cr)2(AlSi3O10)(OH)2)
mineral
Jadeite Jade
NaAlSi2O6 (Sodium Aluminum Silicate)
metamorphic
Quartzite River Rock with Dendrites
Metamorphosed Quartz-rich Sandstone with Manganese Oxide (MnO2) inclusions
metamorphic
Quartzite
Quartzite (SiO2)
metamorphic
Banded Sandstone (Liesegang Rings)
Arenite with Liesegang rings (SiO2/Fe2O3)
sedimentary
Limonite (Iron Ore)
Limonite (FeO(OH)·nH2O)
mineral
Mica Schist
Mica Schist (primarily muscovite and biotite)
metamorphic
Banded Agate (Onyx Variety)
Silicon Dioxide (SiO2) - Cryptocrystalline Quartz
mineral
Anthracite
Anthracite Coal (C)
sedimentary
Epidote
Epidote (Ca2(Al,Fe)3(SiO4)3(OH))
mineral
Anthracite Coal
Anthracite (Carbon rank)
sedimentary
Green Jasper
Silicon Dioxide (SiO2)
sedimentary
White Agate (Chalcedony)
Silicon Dioxide (SiO2)
mineral
Agate
Agate (Silicon Dioxide - SiO2)
mineral
Amethyst
Amethyst (Silicon Dioxide - SiO2 with iron impurities)
mineral
![Lapis Lazuli (Lapis Lazuli (a rock type, not a single mineral; main component is Lazurite (Na,Ca)8[(S,Cl,SO4,OH)2|(Al6Si6O24)])) — Metamorphic Rock (primarily composed of minerals)](https://media.rockidentification.com/b697ae67-2efa-42bf-8d6c-70c23f91ec13-thumbnail.jpg)
Lapis Lazuli
Lapis Lazuli (a rock type, not a single mineral; main component is Lazurite (Na,Ca)8[(S,Cl,SO4,OH)2|(Al6Si6O24)])
Metamorphic Rock (primarily composed of minerals)
Lapis Lazuli
Lapis Lazuli (a rock composed primarily of Lazurite, Sodalite, Calcite, and Pyrite)
Mineral
Red Garnet
Garnet Group (e.g., Pyrope, Almandine, Spessartine, Grossular, Andradite, Uvarovite)
Mineral
Jasper Pendant
Silicon dioxide (SiO2) with impurities
Mineral/Sedimentary
Quartzite
Quartzite (primarily SiO2)
Metamorphic
Serpentinite
Serpentinite (complex silicate of magnesium, (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4)
metamorphic
Garnet Schist
Almandine Garnet in Mica Schist (Fe3Al2(SiO4)3)
metamorphic
Quartzite with Iron Mineral Banding
Silicon Dioxide (SiO2) with Ferric Oxide (Fe2O3) staining
metamorphic
Anthracite Coal
Anthracite (Carbon C)
metamorphic
Orange Quartz (Citrine Quartz)
Silicon Dioxide (SiO2)
mineral
Lapis Lazuli
Lapis Lazuli (Complex silicate mixture including Lazurite: (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)
metamorphic
Chert (with Epidote/Quartz veining)
Cryptocrystalline silica (SiO2) with Epidote/Quartz inclusions
sedimentary
Chert (Red Jasper variant)
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Quartz
SiO₂ (Silicon Dioxide)
Mineral
Sodalite (blue beads) and Clear Quartz (clear beads)
Sodalite: Na4Al3Si3O12Cl; Quartz: SiO2
mineral
Geode (Unopened)
Silicon Dioxide (SiO2) in sedimentary vugs
sedimentary
Magnetite (Lodestone variety)
Magnetite (Fe3O4)
mineral
Optical Calcite
Calcium Carbonate (CaCO3)
mineral
Fossilized Dinosaur Skull (Tyrannosaurus rex)
Tyrannosaurus rex (permineralized fossil), rich in Hydroxylapatite/Silica
sedimentary
Mica Group Minerals
There isn't a single scientific name as 'Mica' refers to a group of phyllosilicate minerals. Common scientific names include Muscovite (KAl₂ (AlSi₃O₁₀)(OH)₂), Biotite (K(Mg,Fe)₃AlSi₃O₁₀(OH)₂), Phlogopite (KMg₃AlSi₃O₁₀(OH)₂), and Lepidolite (K(Li,Al)₃(Al,Si,Rb)₄O₁₀(F,OH)₂).
Mineral
Ferruginous Quartz
Silicon Dioxide with Iron Oxide inclusions (SiO2 + Fe2O3)
mineral
Fancy Jasper
Chalcedony (SiO2)
sedimentary