Blue Apatite
Apatite (Calcium Phosphate) - Ca5(PO4)3(F,Cl,OH)
mineral
Category
Igneous And Mineral
Browse igneous and mineral specimens identified by the Rock Identifier community.
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Vesicular Basalt with Secondary Mineral Infill
Mafic Volcanic Rock (Basalt)
igneous
Obsidian
Amorphous volcanic glass (70-75% SiO2)
igneous
Quartz with inclusions
SiO2
mineral
Quartz (White/Milky)
Silicon Dioxide (SiO2)
mineral
Quartz (Milk Quartz / Massive Quartz)
Silicon Dioxide (SiO2)
mineral
Quartz Geode
Silicon Dioxide (SiO2) - Crystalline Quartz
mineral
Quartz (Milky/Clear Fragment)
Silicon Dioxide (SiO2)
mineral
Pink Feldspar
Orthoclase (KAlSi3O8)
igneous
Quartz with inclusions (likely Tourmaline or Biotite)
Silicon Dioxide (SiO2)
mineral
Dalmatian Jasper
Peralkaline Feldspar Rhyolite
igneous
Granite
Phaneritic Acidic Igneous Rock (composed of Quartz, Alkali Feldspar, and Plagioclase)
igneous
Milky Quartz with Iron Staining
Quartz (Silicon Dioxide, SiO2)
mineral
Ferruginous Quartz (Iron-Stained Quartz)
Silicon Dioxide (SiO2) with Iron Oxide inclusions
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Orthoclase Feldspar (Twinning Specimen)
Orthoclase (KAlSi3O8)
mineral
Fluorite (Blue)
Calcium Fluoride (CaF2)
mineral
Sunstone (Feldspar)
(Ca,Na)((Al,Si)2Si2O8) with inclusions of Hematite or Goethite
mineral
Amygdaloidal Basalt
Amygdaloidal Basalt (Mafic volcanic rock)
igneous
Diorite
Intrusive Igneous Diorite
igneous
Granite
Granite (a common term for a felsic intrusive igneous rock)
igneous
Sunstone
Plagioclase Feldspar (Na,Ca)(Al,Si)4O8
mineral
Amethyst
Silicon dioxide (SiO2) with iron impurities
mineral
Sunstone
Plagioclase Feldspar (containing (Ca,Na)(Al,Si)4O8 with Hematite or Copper inclusions)
mineral
Dalmatian Jasper (Dalmatian Stone)
Perthitic Feldspar with Arfvedsonite/Riebeckite
igneous
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Chromium (Chrome)
Chromium (Cr)
mineral
Magnetite / Iron Ore
Magnetite (Fe3O4)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Granite or Granitic Gneiss
Granitoid / Gneiss
Igneous / Metamorphic
Gneiss (likely Granitic Gneiss)
Gneiss
metamorphic
Banded Gneiss
Gneiss (high-grade metamorphic silicate rock)
metamorphic
Aura Quartz (Titanium/Rainbow Quartz)
SiO2 (Silicon Dioxide) with metallic coating
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Amazonite
K(AlSi3O8) - Microcline
mineral
Diorite
Plutonic Igneous Rock (NaAlSi3O8, CaAl2Si2O8)
igneous
Granite
Granite (a common rock type, not a single mineral; composed primarily of Quartz, Feldspar (Orthoclase and Plagioclase), and Mica (Biotite and/or Muscovite) and/or Amphibole)
Igneous
Yellow Quartz (Golden Quartz)
Silicon Dioxide (SiO2)
mineral
Quartz (Raw Chunk)
Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral