Moonstone (specifically White Moonstone/Adularia)
Potassium aluminum silicate ((K,Na)AlSi3O8)
Category
Browse metamorphic specimens identified by the Rock Identifier community.
Moonstone (specifically White Moonstone/Adularia)
Potassium aluminum silicate ((K,Na)AlSi3O8)
Smoky Quartz
Quartz (Silicon Dioxide), Formula: SiO2
Citrine
Silicon dioxide (SiO2)
Blue Sapphire
Corundum (Al2O3 with trace amounts of iron and titanium)
Emerald in Matrix
Beryllium Aluminum Silicate (Be3Al2Si6O18) with Chromium/Vanadium impurities
Blue Apatite
Apatite (Calcium Phosphate) - Ca5(PO4)3(F,Cl,OH)
Green Aventurine (Carved)
Silicon Dioxide (Quartz variant) with Fuchsite inclusions (SiO2 + K(Al,Cr)2AlSi3O(OH)2)
Blue Calcite
Calcium Carbonate (CaCO3)
Rutilated Quartz
Silicon Dioxide (SiO2) with Titanium Dioxide (TiO2) inclusions
Moonstone
Orthoclase (Potassium Aluminum Silicate), Formula: (K,Na)AlSi3O8
Citrine (Yellow Quartz)
Silicon Dioxide (SiO2)
Quartz (Clear / Rock Crystal)
Silicon Dioxide (SiO2)
Serpentine
Antigorite / Lizardite / Chrysotile [(Mg,Fe)3Si2O5(OH)4]
Quartz (River Cobble)
Silicon Dioxide (SiO2)
Apatite
Fluorapatite, Chlorapatite, and Hydroxylapatite (Ca5(PO4)3(F,Cl,OH))
Citrine
Quartz (Silicon Dioxide - SiO2)
Emerald
Beryl (Be3Al2(SiO3)6) with Chromium/Vanadium impurities
Rough Quartz (Grey-Green)
Silicon Dioxide (SiO2)
Moonstone
Potassium Aluminum Silicate (KAlSi3O8)
Orange Calcite
Calcium Carbonate (CaCO3)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Banded Agate
Cryptocrystalline Silica (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Green Aventurine
Silicon Dioxide (SiO2) with Fuchsite inclusions
Rough Quartz (likely Rose or Smoky variant)
Silicon Dioxide (SiO2)
Orange Calcite
Calcium Carbonate (CaCO3)
White Calcite
Calcium Carbonate (CaCO3)
Sunstone
Plagioclase feldspar (with Copper or Hematite inclusions)
Quartz (Smoky/Milky variety)
Silicon Dioxide (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Magnetite (potentially Hematite-rich)
Magnetite (Fe3O4)
Quartz (Milky or Citrine-tinted)
Silicon Dioxide (SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Yellow Agate
Agate (Varietal form of Chalcedony/Quartz, SiO2)
Blue Apatite
Apatite (Ca5(PO4)3(F,Cl,OH))
Peach Moonstone (Feldspar variety)
Orthoclase Feldspar (KAlSi3O8) with inclusions
Orthoclase Feldspar
Potassium aluminum silicate (KAlSi3O8)
Labradorite
Labradorite (Plagioclase Feldspar Series - (Ca, Na)(Al, Si)4O8)
White Zircon
Zircon (Zirconium silicate, ZrSiO4)
Milky Quartz Vein in Host Rock
Silicon Dioxide (SiO2)
Moonstone
Orthoclase Feldspar ((K,Na)AlSi3O8)