Milky Quartz
Silicon Dioxide (SiO2)
Category
Browse metamorphic or igneous specimens identified by the Rock Identifier community.
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz with Iron Inclusions
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Banded Gneiss
Metamorphic Gneiss
Mica
Phlogopite or Biotite group (KMg3(AlSi3O10)(F,OH)2 / K(Mg,Fe)3AlSi3O10(OH)2)
Magnetite
Magnetite (Fe3O4)
Conical fossil shell or shell fragment
Likely a gastropod shell fragment; exact taxon indeterminate from the image
Gneiss
Metamorphic Gneiss
Magnetite
Magnetite (Fe3O4)
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
Quartz (Milky/Common Quartz)
Silicon Dioxide (SiO2)
Rose Quartz
Silicon Dioxide (SiO2) with traces of Titanium, Iron, or Manganese
Quartz Crystal
Silicon Dioxide (SiO2)
Prehnite
Ca2Al(AlSi3O10)(OH)2
Galena
Lead Sulfide (PbS)
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz (Agate/Jasper pebble)
Silicon Dioxide (SiO2)
Iolite
Cordierite (Magnesium Aluminum Silicate, (Mg,Fe)2Al3(AlSi5O18))
Quartz
Silicon Dioxide (SiO2)
Feldspar
KAlSi3O8 - NaAlSi3O8 - CaAl2Si2O8 (Feldspar group)
Potassium Feldspar (Orthoclase / Microcline)
KAlSi3O8
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz with Iron Oxide Staining
Silicon Dioxide (SiO2)
Citrine Quartz
Silicon Dioxide (SiO2) with iron impurities
Blue Sapphire
Corundum (Al2O3 with trace amounts of Fe and Ti)
Quartz
Silicon Dioxide (SiO2)
Pyrite
Iron Pyrite (FeS2)
Blue Apatite
Fluorapatite / Apatite Group (Ca5(PO4)3(F,Cl,OH))
Quartz (Iron-stained Quartz)
Silicon Dioxide (SiO2)
Rough Apatite in Matrix
Fluorapatite / Chlorapatite / Hydroxylapatite (Ca5(PO4)3(F,Cl,OH))
Quartz (Raw Chunk)
Silicon Dioxide (SiO2)
Pyrite (Fools Gold)
Iron Disulfide (FeS2)
Quartz (Milky/Snow)
Silicon Dioxide (SiO2)
Blue Apatite
Fluoroapatite (Ca5(PO4)3F)
Hypersthene
Hypersthene (Magnesium Iron Silicate - (Mg,Fe)SiO3)
Sodalite
Na8(Al6Si6O24)Cl2