Granite (specifically Pink or Alkali Feldspar Granite)
Felsic Plutonic Rock (primarily SiO2 with KAlSi3O8)
igneous
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.
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Banded Agate / Lace Agate
Agate (Silica/Quartz) - SiO2
mineral
Yellow Jasper
Silicon Dioxide (SiO2) with Goethite or Limonite inclusions
sedimentary
Pink Granite
Granite (Phaneritic Felsic Igneous Rock)
igneous
Banded Gneiss
Gneiss (High-grade regional metamorphic rock)
metamorphic
Banded Gneiss
Gneiss (High-grade regional metamorphic rock)
metamorphic
Chert
Silicon dioxide (SiO2)
Sedimentary
Gneiss
Gneiss
metamorphic
Mica Schist
Mica Schist (Quartz-Biotit-Muscovite Schist)
metamorphic
Chrysoprase
Chrysoprase (a variety of Chalcedony, SiO₂)
Mineral
Serpentinite
Serpentinite (composed largely of serpentine group minerals including antigorite, lizardite, and chrysotile)
metamorphic
Blue Chalcedony (Blue Lace Agate variety)
Silicon Dioxide (SiO₂)
mineral
Chalcedony (Agate/Carnelian)
Cryptocrystalline Silicon Dioxide (SiO2)
mineral
Chalcedony (specifically Blue Chalcedony or Common Opal variety)
Silicon Dioxide (SiO₂)
mineral
Limonite with Gold-bearing Quartz
Hydrated Iron Oxide Hydroxide, FeO(OH)·nH2O
mineral
Pegmatite (Granitic)
Granite Pegmatite
igneous
Bloodstone
Heliotrope (a variety of Chalcedony, SiO₂ with inclusions)
Metamorphic Rock
Ferruginous Quartz
Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions
mineral
Schist
Schist (Crystalline metamorphic rock)
metamorphic
Carnelian Agate/Jasper blend
Silicon Dioxide (SiO2) - variety of Chalcedony
mineral
Granitic Pegmatite
Pegmatitic Granite
igneous
Granite
Granite
igneous
Granite Pebble
Felsic Intrusive Igneous Rock (composed of Quartz, Alkali Feldspar, and Plagioclase)
igneous
Yellow Jasper
Silicon Dioxide (SiO2) with goethite or iron oxide inclusions
sedimentary
Granite
Granite (Phaneritic igneous rock)
igneous
Aquamarine
Beryl (Be3Al2Si6O18), specifically the blue-green variety
Mineral
Granite Cobble (River Stone)
Felsic intrusive igneous rock (composition: Quartz, Feldspar, Mica)
igneous
Granite
Plutonic Igneous Rock (composed primarily of Quartz, Feldspar, and Mica)
igneous
Grass (Organic Matter/Soil)
Poaceae (family of monocotyledonous flowering plants)
Organic Materia (Not a rock or mineral)
Rose Quartz
SiO2 (Silicon Dioxide)
mineral
Limonite (Iron Ore)
Limonite (Hydrous iron(III) oxide-hydroxide mixture, FeO(OH)·nH2O)
mineral
Schist
Mica Schist
metamorphic
Limonite (Ironstone)
Limonite (FeO(OH)·nH2O)
sedimentary
Rose Quartz
Silicon Dioxide with traces of titanium, iron, or manganese (SiO2)
mineral
Yellow Jasper
Silicon Dioxide (SiO2) with Goethite/Iron oxide inclusions
sedimentary
Quartz with Epidote / Chlorite Inclusions
Silicon Dioxide (SiO2) with Epidote Ca2(Al,Fe)3(SiO4)3(OH)
mineral
Tumbled purple jasper (likely)
Microcrystalline quartz/chalcedony, SiO₂, colored by iron and other trace minerals
mineral
Jasper (specifically Polychrome or Desert Jasper)
Silicon Dioxide (SiO2) with iron oxide and other mineral impurities
sedimentary (chemical/biological origin)
Fossilized bone fragment
Mineralized vertebrate bone, commonly hydroxyapatite partly replaced by silica or calcite
fossil
Chert / Green Jasper
Silicon Dioxide (SiO2)
sedimentary
Granite Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
metamorphic
Rose Quartz
SiO2 (Silicon Dioxide)
mineral