Aura Quartz
Titanium-coated Silicon Dioxide (SiO2)
mineral
Category
Man Made Byproduct (Often Mistaken For Obsidian Or Emerald)
Browse man made byproduct (often mistaken for obsidian or emerald) specimens identified by the Rock Identifier community.
Quartz (Milky Quartz)
Quartz (SiO2 - Silicon Dioxide)
Mineral
Specular Hematite (Specularite)
Iron Oxide (Fe2O3)
mineral
Beryl (Variety Mix)
Be3Al2(Si6O18)
Mineral
Jadeite (Jade)
Jadeite (NaAlSi2O6)
metamorphic
Sandstone (specifically Arkose or Quartz Arenite)
Arenite (primarily SiO2 with possible Feldspar)
sedimentary
Mother of Pearl (Nacre)
Calcium Carbonate (primarily aragonite, with conchiolin)
Organic Gemstone/Biomineral
Goldstone (Red)
Aventurine Glass (Cupriferous glass)
Synthetic Glass (Man-made)
Titanium Aura Quartz (Bismuth-coated Druzy)
Silicon Dioxide (SiO2) with Titanium/Metal vapor coating
mineral
Sandstone (with Iron Siderite Concretion)
Arenite with Ironstone Concretion (FeCO3)
sedimentary
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
mineral
Obsidian (Black Obsidian)
Obsidian (Volcanic Glass)
igneous
Chakra Stone (Composite / Man-made Bonded Gemstones)
Composite of Quartz, Lapis Lazuli, Aventurine, Tiger's Eye, and Jasper (SiO2, (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2, etc.)
Combined Minerals / Metaphysical stones
Amazonite
KAlSi3O8 (Potassium Feldspar, variety of Microcline)
Mineral
Jadeite
Jadeite (NaAlSi2O6)
metamorphic
Crushed Limestone
Calcium Carbonate (CaCO3)
Sedimentary
Green Aventurine
Silicon Dioxide (Quartz) with inclusions of Fuchsite (K(Al,Cr)2(AlSi3O10)(OH)2)
metamorphic
Beryl (Emerald Variety)
Beryllium aluminum silicate (Be3Al2(SiO3)6) with chromium/vanadium traces
mineral
Green Quartz / Aventurine
Silicon Dioxide (SiO2) with inclusions
Metamorphic
Fuchsite (Green Muscovite in Quartz)
Chromium-rich Muscovite (K(Al,Cr)2(AlSi3O10)(OH)2)
metamorphic
Fuchsite (Green Muscovite)
K(Al,Cr)2(AlSi3O10)(OH)2
Mineral
Greenstone
Greenschist / Greenstone (Chlorite-Epidote facies)
metamorphic
Rough Emerald/Green Beryl
Beryl (Be3Al2(SiO3)6) with trace amounts of Chromium or Vanadium
mineral
Emerald with Matrix (Emerald in Mica Schist)
Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities
mineral
Fuchsite Quartzite (Green Quartzite)
Fuchsite-bearing Quartzite (K(Al,Cr)2(AlSi3O10)(OH)2 + SiO2)
metamorphic
Amazonite (with smoky quartz/red jasper inclusions)
Tectosilicate - Microcline Feldspar (KAlSi3O8)
Mineral
Sandstone
Arenite (primarily SiO2)
sedimentary
Green Tourmaline
Elbaite - Na(Li1.5Al1.5)Al6Si6O18(BO3)3(OH)4
mineral
Emerald in Matrix
Emerald (Beryllium Aluminum Silicate), Be3Al2(SiO3)6
mineral
Fuchsite
K(Al,Cr)2(AlSi3O10)(OH)2 (Chromium-rich Muscovite)
mineral
Fuchsite on Quartz
Muscovite (KAl2(AlSi3O10)(OH)2) with Chromium impurities
metamorphic
Malachite
Malachite (Copper Carbonate Hydroxide, Cu2CO3(OH)2)
mineral
Green Tourmaline (Verdelite)
Elbaite (Complex Borosilicate: Na(Li,Al)3Al6(BO3)3Si6O18(OH)4)
mineral
Man-made Crystal (Lead Glass)
Lead oxide-doped Silica Glass (approx. SiO2 + PbO)
Mineraloid/Synthetic Material
Obsidian / Volcanic Glass
Obsidian (principally SiO2, usually 70% or more)
igneous
Dalmatian Stone
Peralkaline Quartz-Feldspar Rock
igneous
Granite
Plutonic Igneous Rock (composed typically of SiO2, Al2O3, K2O, Na2O, CaO)
igneous
Greenschist
Greenschist (chlorite-epidote schist)
metamorphic
Moldavite
Tektite (Impact Glass), ~80% SiO2 + Al2O3
tektite
Black Obsidian
Volcanic Glass (SiO2)
igneous
Fuchsite
Chromium-rich Muscovite (K(Al,Cr)2(AlSi3O10)(OH)2)
mineral
Azurite and Malachite
Azurite (Cu3(CO3)2(OH)2) and Malachite (Cu2(CO3)(OH)2)
mineral