Tumbled clear quartz
Quartz (silicon dioxide, SiO₂)
mineral
Category
Metamorphic And Igneous Rocks
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Small quartz-rich mineral fragment
Quartz (SiO₂), possibly milky or chalcedonic quartz
mineral
Magnetite (Lodestone)
Magnetite (Fe3O4)
mineral
Garnet (Spessartine / Almandine)
Fe3Al2(SiO4)3 to Mn3Al2(SiO4)3 (Nesosilicate)
mineral
Citrine
Silicon Dioxide (Quartz variety), SiO2
mineral
Feldspar
Potassium or Plagioclase Feldspar (KAlSi3O8 - NaAlSi3O8)
mineral
Quartz Vein Rock
Silicon Dioxide (SiO2)
mineral
Ruby (varieties of Corundum)
Aluminum oxide (Al2O3) with Chromium traces
mineral
Epidote
Epidote (Ca2(Al, Fe)3(SiO4)3(OH))
mineral
Clear Quartz
SiO2 (Silicon Dioxide)
gemstone
Mica
Mica group (often Muscovite or Biotite)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Yellow Sapphire or Citrine
Al2O3 (Corundum) or SiO2 (Quartz)
mineral
Feldspar (Microcline / Orthoclase)
Potassium Feldspar (KAlSi3O8)
mineral
Blue Apatite
Apatite Group (Ca5(PO4)3(F,Cl,OH))
mineral
Epidote
Ca2(Al,Fe)3(SiO4)3(OH)
mineral
Feldspar (Plagioclase / Potassium Feldspar)
Feldspar Group (KAlSi3O8 - NaAlSi3O8 - CaAl2Si2O8)
mineral
Raw Garnet (Hessonite / Spessartine)
Silicate mineral group (X3Y2(SiO4)3)
gemstone
Blue Apatite
Apatite-(CaF), Ca5(PO4)3F (Calcium Fluorophosphate)
mineral
Pyrite (Fools Gold)
Iron Disulfide (FeS2)
mineral
Iolite
Cordierite (Magnesium Aluminum Silicate, (Mg,Fe)2Al3(AlSi5O18))
gemstone
Ruby
Corundum (Al2O3:Cr)
gemstone
Magnetite
Magnetite (Fe3O4)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Quartz with Epidote
Silicon dioxide (SiO2) with Calcium aluminum iron silicate (Ca2Al2(Fe3+;Al)(SiO4)(Si2O7)O(OH))
mineral
Rutilated Quartz
Rutile in Quartz (SiO2 with TiO2 inclusions)
mineral
Rutilated Quartz (with Garnet pendant)
Silicon Dioxide (SiO2) with Titanium Dioxide (TiO2) inclusions
mineral
Emerald
Beryl (Be3Al2Si6O18 with chromium and vanadium impurities)
gemstone
Yellow Aventurine
Quartz with inclusion minerals (SiO2)
mineral
Rhodonite, Gray Moonstone, and White Feldspar Mix
Multiple: MnSiO3 (Rhodonite), (K,Na)AlSi3O8 (Feldspar/Moonstone)
mineral
Yellow Calcite
Calcite (Calcium Carbonate, CaCO3)
mineral
Epidote
Epidote (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))
mineral
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Yellow Quartz (Citrine / Orange Quartz)
Silicon Dioxide (SiO2)
mineral
Likely weathered mica-rich rock fragment
Probable schist, composed mainly of quartz, feldspar, and mica
metamorphic
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
White Quartz
Silicon Dioxide (SiO2)
mineral
Almandine Garnet
Iron aluminum silicate (Fe3Al2(SiO4)3)
metamorphic
Almandine Garnet
Fe3Al2(SiO4)3
mineral
Muscovite Mica
Muscovite (KAl2(AlSi3O10)(OH)2)
mineral