Blue Quartzite
Quartzite (specifically a variety enriched with blue-coloring minerals)
Metamorphic Rock
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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Pink Granite
Granite (Phaneritic Acidic Igneous Rock)
igneous
Bronzite
MgSiO3 (Enstatite with 10-30% FeSiO3 in solid solution)
Mineral
Rose Quartz
Silicon Dioxide (SiO2) with trace elements of Titanium, Iron, or Manganese
mineral
Polished ocean jasper (orbicular jasper), likely
Silica-rich microcrystalline quartz/chalcedony aggregate, commonly with feldspar, epidote, and iron oxides; composition varies
igneous
Chert (Iron-stained)
Chert (Microcrystalline Quartz, SiO2)
sedimentary
Limonite / Iron Oxide Concretion
FeO(OH)·nH2O (Hydrated iron oxide)
mineral
Milky Quartz in Matrix
Silicon Dioxide (SiO2)
mineral
Fossil Coral
Hexagonaria (Rugose coral) / Rugosa
fossil
Schist
Crystalline Metamorphic Rock (Schistose)
metamorphic
Multi-Gemstone Quartz Bracelet (Amethyst, Aventurine, Rose Quartz, Clear Quartz)
Silicon Dioxide (SiO2) mixture
gemstone
Schist
Mica Schist (Metamorphic rock)
metamorphic
Epidote
Epidote Group (e.g., Clinozoisite, Epidote, Piemontite), Epidote formula: Ca2(Al,Fe)3(SiO4)3(OH)
Mineral
Granite
Phaneritic Igneous Rock (primarily Quartz, Feldspar, and Mica)
igneous
Honey Calcite
Calcium Carbonate (CaCO3)
mineral
Yellow Calcite
Calcium Carbonate (CaCO3)
mineral
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of Titanium, Iron, or Manganese
mineral
Limonite (Iron Ore)
Limonite (Iron oxide-hydroxide mixture, FeO(OH)·nH2O)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Carnelian
Carnelian (Silicon Dioxide, SiO2)
mineral
Peach Moonstone
Orthoclase Feldspar (KAlSi3O8)
mineral
Limonite
FeO(OH)·nH2O
mineral
Limonite or Ironstone
Hydrated iron oxide-hydroxide, approximately FeO(OH)·n(H2O)
mineral
Limonite
Limonite (Hydrous iron oxides, FeO(OH)·nH2O)
mineral
Garnet in Quartzite
Garnet-bearing Quartzite (SiO2 + X3Y2(SiO4)3)
metamorphic
Apricot Agate
Silicon Dioxide (SiO2) - Chalcedony variety
mineral
Sandstone or Quartzite
Arenite (if sedimentary) / Quartzite (if metamorphic)
Sedimentary or Metamorphic
Schist
Mica Schist
metamorphic
Citrine Quartz
Quartz (SiO2) - specifically, a variety of macrocrystalline quartz
Mineral
Labradorite
Labradorite ((Ca, Na)(Al, Si)4O8)
mineral
Greenstone (likely altered basalt or serpentinite)
Chlorite-rich metabasalt or serpentinite; exact identification requires testing
metamorphic
Milky quartz
Quartz (silicon dioxide, SiO₂)
mineral
Milky quartz
Quartz (SiO₂), likely massive milky quartz
mineral
Limonite Concretion
Limonite (FeO·nH2O)
mineral
Schist (Graphite or Mica rich)
Crystalline Schist (often containing Muscovite, Biotite, or Graphite)
metamorphic
Schist
Lepidoblastic Mica Schist
metamorphic
Serpentinite
Serpentinite (composed largely of serpentine group minerals including antigorite, lizardite, and chrysotile)
metamorphic
Diamond
Carbon (C)
mineral
Jasper (specifically Yellow or Bumblebee-like Jasper)
Silicon Dioxide (SiO2) with impurities
sedimentary
Limonite Nugget
Limonite (Hydrated iron oxide-hydroxide, FeO(OH)·nH2O)
mineral
Labradorite
(Ca, Na)(Al, Si)4O8 (Calcium Sodium Aluminum Silicate)
mineral