Epidote
Ca2(Al,Fe)3(SiO4)3(OH)
mineral
Category
Igneous Or Mineral
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Blue Apatite
Fluorapatite (Ca5(PO4)3F)
mineral
Polished dark-speckled igneous pebble, likely diorite or gabbro
Probable diorite (plagioclase feldspar and hornblende/biotite); exact identification is uncertain from the image
igneous
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
mineral
Chalcopyrite
CuFeS2
mineral
Magnetite (Iron Ore)
Magnetite (Fe3O4)
mineral
Magnetite (potentially Hematite)
Magnetite (Fe₃O₄)
mineral
Dalmatian Jasper
Peralkaline Quartz-Feldspar Rock with Arfvedsonite
igneous
Pyrite
Iron Sulfide (FeS2)
mineral
Granite with Epidote
Granite, containing quartz, feldspar, and epidote
Igneous
Pegmatite with Tourmaline
Pegmatite / Silicate
igneous
Granite
Granite
igneous
Tumbled pink granite
Granite (quartz, feldspar, and mica; exact variety uncertain)
igneous
Granite
Granite, a coarse-grained felsic intrusive igneous rock composed chiefly of quartz, feldspar, and mica or amphibole
igneous
Magnetite
Magnetite (Fe3O4)
mineral
Pegmatite
Igneous Pegmatite
igneous
Blue Apatite
Fluorapatite (Ca5(PO4)3(F,Cl,OH))
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Apatite
Ca5(PO4)3(F,Cl,OH)
mineral
Pegmatite
Igneous Pegmatite
igneous
Tumbled milky quartz
Quartz (silicon dioxide, SiO₂)
mineral
Pyrite or Chalcopyrite specimen (Gold-colored mineral coating)
Iron Sulfide (FeS2) / Copper Iron Sulfide (CuFeS2)
mineral
Magnetite (Lodestone)
Iron(II,III) oxide (Fe3O4)
mineral
Magnetite
Iron(II,III) oxide, Fe3O4
mineral
Sodalite
Na8(Al6Si6O24)Cl2
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Amygdaloidal Basalt with Quartz Veining
Basalt (Extrusive Igneous Rock) with Quartz (SiO2) veining
igneous
Magnetite
Magnetite (Fe3O4)
mineral
Magnetite (Iron Ore)
Magnetite (Fe3O4)
mineral
Blue Apatite
Calcium phosphate fluoride/chloride, Ca5(PO4)3(F,Cl,OH)
mineral
Likely milky quartz
Quartz (silicon dioxide, SiO₂)
mineral
Clear quartz crystal pendant
Quartz (silicon dioxide, SiO₂)
mineral
Pegmatite
Igneous Pegmatite
igneous
Magnetite (Iron Ore)
Magnetite (Fe3O4)
mineral
Granite
Intrusive Igneous Rock
igneous
Magnetite
Magnetite (Fe3O4)
mineral
Magnetite (Octahedral Crystal)
Magnetite (Fe3O4)
mineral
Magnetite / Iron Ore
Magnetite (Fe3O4)
mineral
Sugilite
KNa2(Fe,Mn,Al)2Li3Si12O30
mineral
Tumbled milky quartz
Quartz, SiO₂; trigonal crystal system
mineral
Quartz (likely milky or iron-stained quartz)
Quartz, silicon dioxide (SiO₂)
mineral
Milky quartz cluster
Quartz (silicon dioxide, SiO₂)
mineral