Emerald
Beryl (Be3Al2Si6O18 with Chromium/Vanadium impurities)
mineral
Category
Igneous And Mineral
Browse igneous and mineral specimens identified by the Rock Identifier community.
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Mixed Mineral Collection (with Titanium Aura Quartz)
Silicon Dioxide (SiO2) with metallic coatings and various silicates
mineral
Blue Apatite
Apatite-(CaF), Ca5(PO4)3F (Calcium Fluorophosphate)
mineral
Milky Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Glacial Granite with Epidote
Granite featuring Epidote (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))
igneous
Dalmation Stone (Dalmation Jasper)
Peralkaline rock (primarily Feldspar and Quartz with Arfvedsonite spots)
igneous
Black Sand (Magnetite Sand)
Magnetite (Fe3O4)
mineral
Milky Quartz
Silicon dioxide (SiO2)
mineral
Amygdaloidal Basalt
Amygdaloidal Basalt (containing quartz/agate or zeolite fill)
igneous
Red Garnet (likely Almandine or Pyrope)
Garnet group: X3Y2(SiO4)3 (e.g., Almandine: Fe3Al2Si3O12)
mineral
Basalt with Secondary Mineralization (Likely Zeolites or Calcite)
Aphanitic mafic volcanic rock with secondary mineral inclusions (e.g., CaAl2Si3O10·3H2O for Scolecite)
igneous
Fluorite with Quartz coating
Calcium Fluoride (CaF2) with Silicon Dioxide (SiO2)
mineral
Granite
Phaneritic Intrusive Igneous Rock (primarily Quartz, Feldspar, and Mica)
igneous
Gneiss with Quartz Veining
Gneiss (High-grade Metamorphic Rock)
metamorphic
Quartz Vein (Iron-stained)
Silicon Dioxide (SiO2) with limonite/hematite staining
mineral
Quartz (Milky/Smoky mix)
Silicon Dioxide (SiO2)
mineral
Granite
Granite
Igneous
Magnetite (Lodestone variant potential)
Magnetite (Fe3O4)
mineral
Fluorite
Calcium fluoride (CaF2)
mineral
Gneiss
Gneiss
metamorphic
Milky Quartz
Quartz (SiO2)
mineral
Granite
Felsic intrusive igneous rock
igneous
Quartz
Silicon Dioxide (SiO2)
mineral
Dalmatian Stone
Peralkaline rhyolite
igneous
Orthoclase Feldspar
KAlSi3O8 (Potassium Aluminum Silicate)
mineral
Apatite
Fluorapatite / Chlorapatite (Ca5(PO4)3(F,Cl,OH))
mineral
Blue Apatite
Apatite (Calcium Phosphate) - Ca5(PO4)3(F,Cl,OH)
mineral
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
mineral
Sodalite
Sodalite (Na8Al6Si6O24Cl2)
mineral
Epidote
Epidote (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))
metamorphic
Banded Gneiss
Gneiss (Felsic to Mafic Metamorphic Rock)
metamorphic
Yellow Calcite
Calcium Carbonate (CaCO3)
mineral
Pyrite
Iron Disulfide (FeS2)
mineral
Optical Calcite
Calcium Carbonate (CaCO3)
mineral
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
mineral
Yellow Calcite
Calcium Carbonate (CaCO3)
mineral
Amygdaloidal Basalt with Zeolite/Quartz Infill
Amygdaloidal Basalt (Host: (Mg,Fe)2SiO4 / CaAl2Si2O8; Infill: SiO2 or Na2Al2Si3O10·2H2O)
igneous
Epidote
Calcium aluminum iron silicate (Ca2(Al, Fe)3(SiO4)3(OH))
mineral
Quartz with Mica
SiO2 (Quartz) with Potassium aluminum silicate (Muscovite)
Mineral
Labradorite
Labradorite ((Ca,Na)(Al,Si)4O8)
mineral
Granite
Phaneritic Plutonic Felsic Rock
igneous