Epidote (or Epidote-rich rock)
Epidote. Mineral formula: Ca2(Al,Fe)3(SiO4)3(OH).
Mineral, often found in metamorphic rocks but also in sedimentary and igneous rocks
Category
Mineral, Often Found In Metamorphic Rocks But Also In Sedimentary And Igneous Rocks
Browse mineral, often found in metamorphic rocks but also in sedimentary and igneous rocks specimens identified by the Rock Identifier community.
Fluorite Bracelet (light green beads) and possibly Lavender Jadeite (purple bead)
Fluorite: CaF₂ (Calcium Fluoride); Jadeite: NaAlSi₂O₆ (Sodium Aluminum Silicate)
Mineral for Fluorite; Mineral/Rock for Jadeite (as it's often a rock composed primarily of jadeite mineral)
Blue Sapphire
Corundum (Al2O3) with iron and titanium impurities
mineral
Muscovite Mica (Golden/Yellow variety)
KAl2(AlSi3O10)(F,OH)2
mineral
Ruby
Corundum (Al2O3 with Chromium traces)
mineral
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
mineral
Blue Apatite
Apatite (Group), Ca5(PO4)3(F,Cl,OH)
mineral
Red Garnet
Almandine Garnet (Fe3Al2(SiO4)3)
mineral
Apatite
Fluorapatite, Chlorapatite, and Hydroxylapatite (Ca5(PO4)3(F,Cl,OH))
mineral
Red Garnet (likely Almandine or Pyrope)
Garnet group: X3Y2(SiO4)3 (e.g., Almandine: Fe3Al2Si3O12)
mineral
Pink Sapphire
Corundum (Al2O3 with Chromium/Titanium/Iron traces)
mineral
Potassium Feldspar (Orthoclase)
KAlSi3O8
mineral
Garnet (likely Pyrope or Almandine)
Garnet Group (complex nesosilicate minerals, e.g., Pyrope Mg3Al2(SiO4)3, Almandine Fe3Al2(SiO4)3, Spessartine Mn3Al2(SiO4)3, Grossular Ca3Al2(SiO4)3, Andradite Ca3Fe2(SiO4)3, Uvarovite Ca3Cr2(SiO4)3). The vivid red color in the image strongly suggests Pyrope or Almandine.
Mineral
Magnetite (Iron Ore)
Magnetite (Fe3O4)
mineral
Epidote
Epidote Group (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))
metamorphic
Labradorite (a variety of Feldspar)
Labradorite; (Na,Ca)(Al,Si)4O8 (a plagioclase feldspar)
igneous
Biotite Mica
Biotite (K(Mg,Fe)3AlSi3O10(F,OH)2)
mineral
Blue Apatite
Apatite - Ca5(PO4)3(F,Cl,OH)
mineral
Blue Sapphire
Corundum (Al2O3)
mineral
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
mineral
Garnet (specifically Almandine)
Almandine - Fe3Al2(SiO4)3
metamorphic
Magnetite
Magnetite (Fe3O4)
mineral
Quartz (likely) / Siliceous rock with quartz phenocrysts (if a rock fragment)
Quartz (SiO₂)
Mineral
Quartz
Quartz (SiO₂ - Silicon Dioxide)
Mineral
Garnet (Almandine)
Almandine (Fe3Al2(SiO4)3)
mineral
Pyrite in Quartzite/Graphite Matrix
Iron Sulfide (FeS2)
Mineral
Bornite
Bornite (Cu5FeS4)
mineral
Magnetite
Magnetite (Fe3O4)
Mineral
Pyrite
Iron Pyrite (FeS₂)
Mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Magnetite (Iron Ore)
Magnetite (Fe3O4)
mineral
Orthoclase Feldspar
Orthoclase (KAlSi3O8)
mineral
Pyrite
Iron Disulfide (FeS2)
mineral
Blue Calcite
Calcium Carbonate (CaCO3)
mineral
Black Spinel
Magnesium Aluminum Oxide (MgAl2O4)
mineral
Quartz
Quartz (SiO2)
Mineral
Tourmaline (likely Schorl)
Tourmaline Group Mineral (e.g., Schorl for black varieties); (Na,Ca)(Li,Mg,Fe,Mn,Al)3Al6(BO3)3Si6O18(OH)4
Mineral
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
mineral
Quartz
Silicon Dioxide (SiO2)
Mineral
Quartz (likely milky/rose quartz variety)
Quartz (SiO2 - Silicon Dioxide)
Mineral
Biotite (Black Mica)
Biotite (K(Mg,Fe)3AlSi3O10(OH)2)
mineral
Potassium Feldspar
Orthoclase (KAlSi3O8)
mineral