Peach Moonstone
Potassium Aluminum Silicate (KAlSi3O8)
mineral
Category
Mineralogical Specimen
Browse mineralogical specimen specimens identified by the Rock Identifier community.
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Banded Agate (specifically Carnelian Agate)
Silicon Dioxide (SiO2) - Cryptocrystalline Quartz
mineral
Garnet Schist
Almandine-Mica Schist
metamorphic
Septarian Nodule (Dragon Stone)
Septarian Nodule (Calcium Carbonate/Aragonite/Calcite Concretion)
sedimentary
Labradorite
Labradorite (Plagioclase Feldspar Series) - (Ca, Na)(Al, Si)4O8
mineral
Labradorite
Labradorite (Ca, Na)(Al, Si)4O8
mineral
Quartz with Mica inclusions (likely Iron-stained)
Silicon Dioxide (SiO2) with Phyllosilicates
mineral
Granitic Pegmatite with Schorl Tourmaline
Granitic Pegmatite (Schorl: NaFe3Al6(BO3)3Si6O18(OH)4)
igneous
Pyrite in Matrix (Gold-colored Chalcopyrite or Pyrite)
Iron Sulfide (FeS2) / Copper Iron Sulfide (CuFeS2)
mineral
Carnelian
Carnelian (Silica, SiO2)
mineral
Moss Agate
Silicon Dioxide (SiO2) with inclusions of manganese or iron oxides
Mineral (Variety of Chalcedony)
Dragon Blood Jasper (Epidote with Piedmontite or Quartz)
Epidote-rich Quartzite / SiO2 with (Ca2(Al2,Fe)(Si2O7)(SiO4)O(OH))
metamorphic
Carnelian (Carnelian Agate)
Silicon dioxide (SiO2)
mineral
Tiger's Eye
Silicon Dioxide (SiO2) with iron oxide inclusions
Mineral
Rutilated Quartz
Silicon Dioxide with Titanium Dioxide (SiO2 with TiO2 inclusions)
mineral
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2 with iron oxide inclusions)
metamorphic
Green Chalcedony
Silicon Dioxide (SiO2) with trace minerals
mineral
Prehnite on Basalt
Prehnite - Ca2Al(AlSi3O10)(OH)2
mineral
Dalmation Jasper (or Dalmation Stone)
Dalmation Stone (composed of Perthite, Quartz, and Arfvedsonite)
igneous
Ruby in Zoisite
Anyolite (Green Zoisite with Corundum)
metamorphic
Moss Agate
Silicon Dioxide (SiO2) with mineral inclusions of hornblende or chlorite
Mineral (variety of Chalcedony)
![Granite with Quartz Vein (Phaneritic Felsic Igneous Rock (composed of Quartz [SiO2], Feldspar, and Mica)) — igneous](https://media.rockidentification.com/50ebadd6-ed66-4e73-abce-e70c662464c5-thumbnail.jpg)
Granite with Quartz Vein
Phaneritic Felsic Igneous Rock (composed of Quartz [SiO2], Feldspar, and Mica)
igneous
Jasper (var. Ocean or Polychrome Jasper)
Silicon Dioxide (SiO2) with iron and mineral inclusions
sedimentary
Blue Apatite
Apatite-(CaF), Ca5(PO4)3F
mineral
Galena in Quartz Matrix
Lead Sulfide (PbS) in Silicon Dioxide (SiO2)
mineral
Amethyst
Silicon dioxide / Violet Quartz (SiO2)
mineral
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Fossil Coral (Petoskey-style Rugose Coral)
Hexagonaria percarinata (Order: Rugosa)
sedimentary
Jasper (Red/Yellow)
Silicon Dioxide (SiO2) with impurities
sedimentary
Fire Quartz (Hematoid Quartz)
Quartz with Hematite inclusions (SiO2 + Fe2O3)
mineral
Labradorite
Labradorite (Ca,Na)(Al,Si)4O8
mineral
Libyan Desert Glass
Tektite (high-silica impact glass), SiO2
mineral
Clear Quartz Crystal
Silicon Dioxide (SiO2)
mineral
Smoky Quartz Geode Cluster
Silicon Dioxide (SiO2)
mineral
Ocean Jasper
Spherulitic Chalcedony (SiO2)
mineral
Amethyst Quartz (Chevron Amethyst)
Silicon Dioxide (SiO2) with iron impurities
mineral
Banded Agate
Silicon Dioxide (SiO2)
mineral
Banded Chert (Jasper)
Silicon Dioxide (SiO2)
sedimentary
Chondrite Meteorite
L3 Chondrite (Unequilibrated Ordinary Chondrite)
igneous
Carnelian (Carnelian Agate)
Carnelian (Silicon Dioxide - SiO2)
mineral
Biggs Jasper
Cryptocrystalline Quartz (Silicon Dioxide) - SiO2
sedimentary
Garnet Schist
Garnet-bearing Mica Schist (variety of compositions, often Al2SiO5 with X3Y2(SiO4)3)
metamorphic