Granite
Intrusive Igneous Rock
igneous
Category
Igneous And Mineral
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Granite Pebble
Intrusive Igneous Rock
igneous
Granite
Intrusive igneous rock (Felsic)
igneous
Quartz (Smoky/Brown variety)
Silicon dioxide (SiO2)
mineral
Granite
Intrusive Igneous Rock
igneous
Granite
Intrusive igneous rock
igneous
Pyrite
Iron Disulfide (FeS2)
mineral
Feldspar
KAlSi3O8 to NaAlSi3O8
mineral
Dark, coarse-grained rock (possibly diorite or amphibolite)
Undetermined; likely a mafic to intermediate rock containing plagioclase and dark amphibole or pyroxene
igneous
Mixed Mineral and Crystal Assortment
Various silicate and oxide minerals
mineral
White Topaz
Al2SiO4(F,OH)2
mineral
Feldspar
Aluminosilicate (KAlSi3O8 - NaAlSi3O8 - CaAl2Si2O8)
mineral
K-Feldspar (Potassium Feldspar)
Microcline / Orthoclase (KAlSi3O8)
mineral
Epidote
Epidote (Ca2(Al,Fe)3(SiO4)3(OH))
mineral
Mica
Phlogopite / Biotite / Muscovite
mineral
Magnetite
Fe3O4
mineral
K-Feldspar (Microcline / Orthoclase)
Potassium Feldspar (KAlSi3O8)
mineral
Limonite Concretion
Hydrated Iron Oxide-Hydroxide, FeO(OH)·nH2O
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
K-Feldspar
Potassium Feldspar (KAlSi3O8)
mineral
Feldspar
Trikalium alumosilicat / Plagioclase series
mineral
Epidote
Epidote (Ca2(Al, Fe)3(SiO4)3(OH))
mineral
Galena
Lead Sulfide (PbS)
mineral
Clear Quartz
Silicon dioxide (SiO2)
mineral
Olivine (Peridot)
Magnesium Iron Silicate (Mg,Fe)2SiO4
mineral
Quartz-veined rock
Silicate rock with quartz vein (SiO2)
igneous
Granite
Plutonic Igneous Rock
igneous
Granite
Intrusive igneous rock
igneous
Granite
Plutonic igneous rock
igneous
Granite
Intrusive Igneous Rock
igneous
Granite
Intrusive Igneous Rock
igneous
Granite
Intrusive Igneous Rock
igneous
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz in Granite
SiO2 embedded in felsic intrusive rock
igneous
Pyrite
Iron Sulfide (FeS2)
mineral
Sodalite
Na8Al6Si6O24Cl2
mineral
Quartz (Milky/Clear variety)
Silicon Dioxide (SiO2)
mineral
Magnetite (Lodestone)
Magnetite (Fe3O4)
mineral
Blue Apatite
Calcium phosphate fluoride, Ca5(PO4)3(F,Cl,OH)
mineral
Granite
Felsic intrusive igneous rock
igneous
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Quartz with Calcite
Silicon Dioxide and Calcium Carbonate (SiO2 + CaCO3)
mineral