Milky Quartz
Silicon Dioxide (SiO2)
mineral
Category
Mineral (Specifically, A Variety Of The Mineral Species Pyrope Almandine Garnet)
Browse mineral (specifically, a variety of the mineral species pyrope almandine garnet) specimens identified by the Rock Identifier community.
Learn about Mineral (Specifically, A Variety Of The Mineral Species Pyrope Almandine Garnet) in the encyclopedia
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Yellow Jasper / Chert
Silicon Dioxide (SiO2) with Goethite or Limonite inclusions
sedimentary
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Blue Lace Agate
Cryptocrystalline variety of Quartz (SiO2)
mineral
Blue John Fluorite
Fluorite (Calcium Fluoride), CaF2
mineral
Banded Carnelian
Carnelian (Silicon Dioxide / SiO2)
mineral
Selenite
Gypsum (Calcium Sulfate Dihydrate) - CaSO4·2H2O
mineral
Limonite Concretion
Goethite/Limonite concretion (FeO(OH)·nH2O)
sedimentary
Moss Agate
Silicon Dioxide (SiO2) with inclusions
mineral
Moonstone
Orthoclase (KAlSi3O8), specifically the variety showing adularescence
mineral
Greenschist
Greenschist (Chlorite-actinolite schist)
metamorphic
Carnelian
Carnelian (SiO2)
mineral
Granite
Intrusive Felsic Igneous Rock
igneous
Banded Carnelian Agate
Silicon Dioxide (SiO2) - variety of Chalcedony
mineral
Schist
Schist (Foliated Metamorphic Rock)
metamorphic
Amazonite
Microcline (K(AlSi3O8))
mineral
Rose Quartz
Quartz (SiO₂), specifically a variety of Quartz
Mineral
Sandstone (lithic/greywacke variety)
Arenite (composed primarily of SiO2 with various lithic fragments)
sedimentary
Spessartine Garnet
Manganese aluminum silicate (Mn2+3Al2(SiO4)3)
mineral
Blue Lace Agate (Polished Point)
Silicon Dioxide (SiO2)
mineral
Limonite with Pyrite
Hydrated Iron Oxide Hydroxide, FeO(OH)·nH2O
mineral
Staurolite
Staurolite (Fe2Al9O6(SiO4)4(O,OH)2)
mineral
Agate (specifically Waterline or Onyx-type Agate)
Silicon Dioxide (SiO2) - variety Chalcedony
mineral
Spessartine Garnet in Quartz/Feldspar Pegmatite
Spessartine (Mn3Al2(SiO4)3) in Quartz (SiO2) and Feldspar
Mineral in Igneous Rock
Yellow chalcedony (likely lemon quartz or citrine)
Cryptocrystalline silica, SiO₂; possible quartz variety
mineral
Specular Hematite (Specularite)
Iron(III) oxide (Fe2O3)
mineral
Blue Calcite
Calcium Carbonate (CaCO3)
mineral
Jasper (specifically Red Jasper or Iron-stained Chert)
Silicon dioxide (SiO2) with iron oxide inclusions
sedimentary
Granite
Plutonic felsic igneous rock
igneous
Gypsum (Selenite crystals in Halite/Clay matrix)
Calcium Sulfate Dihydrate (CaSO4·2H2O)
mineral
Quartz (Agate/Chalcedony variety)
Silicon Dioxide (SiO2)
mineral
Green Calcite (often commercially called Green Onyx)
Calcium Carbonate (CaCO3)
Mineral
Milky Quartz with Iron Inclusions
Silicon Dioxide (SiO2)
mineral
Larimar (Pectolite)
NaCa2Si3O8(OH)
mineral
Larimar (Pectolite)
NaCa2Si3O10(OH) (Sodium Calcium Silicate Hydroxide)
mineral
Black Tourmaline
Schorl (Sodium Iron Aluminum Borosilicate Hydroxide)
mineral
Red jasper (tumbled river pebble)
Jasper, an opaque microcrystalline variety of quartz/chalcedony (SiO₂), colored mainly by iron oxides
mineral
Travertine (Tufa)
Chemical Limestone (CaCO3)
sedimentary
Carnelian Agate
Silicon Dioxide (SiO2) with Iron Impurities
mineral
Brecciated jasper, possibly rainforest jasper
Jasper: microcrystalline to cryptocrystalline quartz, SiO₂, commonly containing hematite, goethite, chlorite, epidote, and other iron- and manganese-bearing minerals
gemstone
Limonite
FeO(OH)·n(H2O)
mineral
Epidote (Greenstone)
Calcium aluminum iron silicate hydroxide Ca2(Al2,Fe)(SiO4)(Si2O7)O(OH)
metamorphic