Ocean Jasper
Spherulitic Chalcedony (SiO2)
sedimentary
Category
Mineralogical Specimen
Browse mineralogical specimen specimens identified by the Rock Identifier community.
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Strawberry Quartz (Quartz with Hematite inclusions)
Silicon Dioxide with Iron Oxide (SiO2 + Fe2O3)
mineral
Amethyst
Amethyst (Silicon Dioxide, SiO2)
mineral
Garnet in Schist (Garnetiferous Micaceous Schist)
Almandine Garnet, Fe3Al2(SiO4)3
metamorphic
Yellow Jasper
Silicon Dioxide (SiO2) with iron oxide impurities
sedimentary
Red Jasper (Brecciated Jasper)
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Chalcopyrite ore
Chalcopyrite (CuFeS2)
mineral
Basalt with Hematite staining
Extrusive mafic igneous rock with Fe2O3
igneous
Amethyst (Rough Quartz)
Silicon Dioxide (SiO2) with iron impurities
mineral
Amethyst
Silicon Dioxide (SiO2) with Fe3+ impurities
mineral
Red Jasper
Silicon Dioxide (SiO2)
sedimentary
Mookaite Jasper
Silicified Radiolarite (SiO2)
sedimentary
Smoky Quartz
Smoky Quartz (Silicon Dioxide, SiO2)
mineral
Pink Quartz (Rose Quartz)
Silicon Dioxide (SiO2)
mineral
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2)
metamorphic
Pyrite
Iron Disulfide (FeS2)
mineral
Fuchsite in Quartz
Muscovite (KAl2(AlSi3O10)(OH)2) containing Chromium + Quartz (SiO2)
metamorphic
Gold Ore
Native Gold (Au)
mineral
Sunstone
Plagioclase Feldspar (Na,Ca)(Si,Al)4O8
mineral
Limonite (with goethite)
Hydrated Iron(III) Oxide-Hydroxide (FeO(OH)·nH2O)
mineral
Pyrite
Iron Disulfide (FeS2)
mineral
Tree Agate
Dendritic Agate (Silicon Dioxide, SiO2)
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Biotite Schist
Biotite Schist (Rich in K(Mg,Fe)3AlSi3O10(OH)2)
metamorphic
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Garden Quartz (Lodalite)
Silicon Dioxide with various mineral inclusions (SiO2)
mineral
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
mineral
Graphic Granite
Graphic Granite (variety of Pegmatite)
igneous
Beryl (Emerald or Aquamarine in Matrix)
Beryllium Aluminum Silicate (Be3Al2Si6O18)
mineral
Bicolor Tanzanite
Zoisite (Ca2Al3(SiO4)3(OH))
mineral
Blue Chalcedony
Silicon Dioxide (SiO2)
mineral
Sunstone
Aventurine Feldspar (composition: (Ca,Na)((Al,Si)2Si2O8))
mineral
Septarian Nodule (Dragon Stone) sphere
Septarian concretion (Calcite, Aragonite, and Limestone)
sedimentary
Epidote in Quartz (Epidosite)
Epidote (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))
metamorphic
Carnelian (Orange Chalcedony)
Silicon Dioxide (SiO2) with iron oxide impurities
mineral
Moqui Marble (Ironstone Concretion)
Iron Oxide Concretion (Fe2O3 / FeO(OH))
sedimentary
Jasper
Jasper (Silicate - SiO2)
sedimentary
Moss Agate
Silicon Dioxide with inclusions (SiO2 + impurities)
mineral
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
mineral
Tiger's Eye (Rough)
SiO2 (Silicon Dioxide / Pseudomorph of Quartz after Crocidolite)
Mineral / Metamorphic
Red Jasper
Silicon dioxide (SiO2) with Iron inclusions
sedimentary
Blue Quartz (potentially Dumortierite-included)
Silicon Dioxide (SiO2) with inclusions
mineral