Lepidolite
K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2
mineral
Category
Mineral Health
Browse mineral health specimens identified by the Rock Identifier community.
Learn about Mineral Health in the encyclopedia
View all →
Granite
Granite (Felsic Plutonic Rock)
igneous
Laterite
Laterite (Ferricrete / Alcrete)
sedimentary
White Quartz with Black Tourmaline
Silicon Dioxide (SiO2) with Schorl (NaFe2+3Al6(Si6O18)(BO3)3(OH)3OH)
mineral
Quartz (with probable host rock)
Silicon Dioxide (SiO2)
mineral
Bauxite
Bauxite (Al2O3·nH2O)
sedimentary
Olivine in Basalt (Peridotite Xenolith)
Forsterite-rich Olivine (Mg2SiO4) in Aphanitic Basalt
igneous
Banded Chert
Microcrystalline Quartz (SiO2)
sedimentary
Bauxite
Bauxite (Al2O3·nH2O)
sedimentary
Limonite-stained Quartz
Silicon Dioxide (SiO2) with Iron Oxide/Hydroxide (FeO(OH)·nH2O) staining
mineral
Chert (specifically Flint or Jasper variant)
Microcrystalline Quartz (SiO2)
sedimentary
Lapis Lazuli
Lapis Lazuli (A metamorphic rock primarily composed of Lazurite: (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)
metamorphic
Limonite
Limonite (FeOO·nH2O)
mineral
Citrine Quartz
Silicon Dioxide (SiO2) with iron impurities
mineral
Citrine
Silicon Dioxide (SiO2) with iron impurities
mineral
Amethyst (Scepter/Double Terminated Point)
Silicon Dioxide (SiO2)
mineral
Amethyst (Chevron Amethyst/Dream Amethyst)
Silicon Dioxide (SiO2) with trace Iron impurities
mineral
Heat-Treated Amethyst (Commercial Citrine)
Silicon Dioxide (SiO2) - Macro-crystalline Quartz
mineral
Bauxite
Bauxite (mixture of hydrous aluminum oxides: Al(OH)3 & AlO(OH))
sedimentary
Milky Quartz with Iron Staining
Quartz (Silicon Dioxide, SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Fluorite Carving
Fluorite (Calcium Fluoride, CaF2)
mineral
Limonite (Iron Ore)
Hydrated iron(III) oxide-hydroxide (FeO(OH)·nH2O)
mineral
Ferruginous Sandstone (Gozzanous)
SiO2 (Quartz) with FeO(OH) (Goethite) or Fe2O3 (Hematite) coating
sedimentary
Staurolite (Fairy Stone)
Staurolite (formula: Fe2+2Al9Si4O23(OH))
metamorphic
Okenite (in Zeolite matrix)
Okenite (CaSi2O5 · 2H2O)
mineral
Amygdaloidal Basalt
Basalt with Secondary Mineral Infillings
igneous
Sandstone (Quartzose)
Arenite (SiO2 based)
sedimentary
Jade (likely Jadeite or Nephrite)
Jadeite (NaAlSi2O6) or Nephrite (Ca2(Mg,Fe)5Si8O22(OH)2)
Mineral/Mineraloid
Basalt with Epidote (Greenstone)
Amygdaloidal Basalt (Ca2(Al, Fe)3(SiO4)3(OH) inclusions)
igneous
Chrysocolla on Matrix
Hydrated copper phyllosilicate (Cu,Al)2H2Si2O5(OH)4·nH2O
mineral
Note: No specimen visible
N/A
Chrysocolla on Quartz with Iron Oxides
Cu2-xAlx(H2-xSi2O5)(OH)4·n(H2O)
mineral
Chrysocolla
Hydrated copper silicate (Cu,Al)2H2Si2O5(OH)4·nH2O
mineral
Limonite (Iron Ore)
Hydrated iron(III) oxide-hydroxide (FeO(OH)·nH2O)
mineral
Diamond (in jewelry setting)
Diamond (Carbon, C)
mineral
Chrysocolla in Matrix
Chrysocolla (Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O)
mineral
Amygdaloidal Basalt
Amygdaloidal Mafic Volcanic Rock (Basalt)
igneous
Hypersthene
(Mg,Fe)SiO3 - Enstatite-Ferrosilite series
mineral
Moss Agate
Chalcedony (Silicon Dioxide / SiO2)
mineral
Turquoise
CuAl6(PO4)4(OH)8·4H2O
mineral
Pyrite
Iron Disulfide (FeS2)
mineral