Galena
Lead(II) sulfide (PbS)
Category
Browse mineral (metamorphic pseudomorph) specimens identified by the Rock Identifier community.
Galena
Lead(II) sulfide (PbS)
Citrine
Silicon Dioxide (SiO2) with iron impurities
White Moonstone (Feldspar)
Potassium aluminum silicate (KAlSi3O8)
Golden Quartz (Citrine or Iron-stained Quartz)
Silicon Dioxide (SiO2)
Labradorite (Carved)
(Ca, Na)(Al, Si)4O8
Clear Quartz Crystal Cluster
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz (Milky or Citrine-tinted)
Silicon Dioxide (SiO2)
Quartz / Quartz Cluster
Silicon Dioxide (SiO2)
Green Aventurine
Silicon Dioxide with Fuchsite (SiO2 + K(Al,Cr)2AlSi3O10(OH)2)
Green Calcite
Calcite (CaCO3)
Marble
Marbles are primarily composed of calcite (calcium carbonate, CaCO3) or dolomite (calcium magnesium carbonate, CaMg(CO3)2).
Quartz with Chalcopyrite
Silicon Dioxide (SiO2) with Copper Iron Sulfide (CuFeS2)
Gneiss
Gneiss (High-grade Metamorphic Rock)
Amethyst
Amethyst (Silicon Dioxide, SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Citrine Quartz
Silicon Dioxide (SiO2) with iron impurities
Jadeite
Jadeite (NaAlSi2O6)
Aventurine
Quartzite with inclusions (SiO2 containing Fuchsite chrome mica)
Green Aventurine
Silicon Dioxide (Quartz) with inclusions of Fuchsite mica (K(Al,Cr)2(AlSi3O10)(OH)2)
Nuummite
Nuummite (intergrowth of orthoamphiboles Anthophyllite and Gedrite, (Mg,Fe)7Si8O22(OH)2)
Green Aventurine
Quartzite with Fuchsite inclusions (SiO2 + K(Al,Cr)2(AlSi3O10)(OH)2)
Lapis Lazuli
Lapis Lazuli (Complex silicate mineral mixture primarily Lazurite: (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)
Petrified Wood
Silicified wood (primarily SiO2 - Silicon Dioxide/Quartz)
Dragon Blood Jasper (Epidote with Piedmontite or Quartz)
Epidote-rich Quartzite / SiO2 with (Ca2(Al2,Fe)(Si2O7)(SiO4)O(OH))
Diamond Drill Core (Greenschist and Quartzite)
Chlorite Schist / Meta-quartzite (Metamorphic Rock Core Sample)
Quartzite with inclusions
Metamorphic Rock (Mainly SiO2)
Green Quartzite
Quartzite (SiO2)
Gneiss with Quartz/Feldspar Vein
Quartz-Feldspathic Gneiss
Unakite
Epidotized Granite
Man-made Green Quartz (Lab-grown or Treated)
Silicon Dioxide (SiO2) with artificial coloration
Peach Aventurine
Quartz variety (SiO2 + Hematite/Goethite inclusions)
Magnetite (Iron Ore)
Magnetite (Fe3O4)
Quartz (specifically Milky Quartz/Quartzite)
Silicon Dioxide (SiO2)
Biotite Mica
Biotite (K(Mg,Fe)3AlSi3O10(F,OH)2)
Milky Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
Quartz (Milky/Clear variety)
Silicon Dioxide (SiO2)
Quartz (Citrine variety)
Silicon Dioxide (SiO2)
Orange Calcite
Calcium Carbonate (CaCO3)
Sunstone
Aventurine Feldspar ((Ca,Na)(Al,Si)4O8)
Potassium Feldspar
K-Feldspar (KAlSi3O8)
Blue Quartz
Silicon Dioxide (SiO2) with inclusions