Granite
Granite (Felsic Plutonic Rock)
Category
Browse sedimentary or igneous associated mineral specimens identified by the Rock Identifier community.
Granite
Granite (Felsic Plutonic Rock)
Chert Nodule (Flint)
Silicon Dioxide (SiO2)
Tumbled howlite (probable)
Howlite, Ca₂B₅SiO₉(OH)₅
Howlite
Calcium borosilicate hydroxide (Ca2B5SiO9(OH)5)
Greenstone / Greenstone Pebble
Greenschist (metamorphosed basalt or gabbro)
Honey Calcite
Calcium Carbonate (CaCO3)
Red Jasper
Silicon Dioxide (SiO2) with Iron Oxide inclusions
Red Quartz (Druzy)
Silicon Dioxide (SiO2) with Hematite inclusions
Granite
Phaneritic Plutonic Felsic Rock (SiO2 > 69%)
Pink Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
Yellow Jasper
Jasper (Silica-rich Microcrystalline Quartz, SiO2)
Red Jasper
Silicon Dioxide (SiO2) with Iron inclusions
Granodiorite
Granodiorite
Jasper
Jasper (Silicon Dioxide, SiO2)
Banded Calcite
Calcite (Calcium Carbonate, CaCO3)
Granite
Granite (a common type of Felsic Intrusive Igneous Rock)
Granodiorite
Granodiorite
Vesicular basalt (scoriaceous basalt)
Basalt, primarily plagioclase, pyroxene, and iron-rich olivine; vesicular variety may be termed scoria
Porphyry
Porphyritic Igneous Rock
Greenschist (or Serpentinite with Manganese Dendrites)
Greenschist facies metamorphic rock
Tumbled carnelian (likely orange chalcedony)
Carnelian, a cryptocrystalline variety of quartz; SiO₂, commonly colored by iron oxides
Crazy Lace Agate
Silicon Dioxide (SiO2) - Variety of Chalcedony
Fossilized Shark Tooth (Basal Bone)
Otodus sp. (Mineralized Hydroxyapatite)
Quartz Vein in Host Rock
Silicon Dioxide (SiO2) within Sedimentary or Igneous Matrix
Greenstone
Protolith of basalt, diabase, or gabbro; often contains minerals like chlorite, actinolite, and epidote
Red Jasper
Silicon Dioxide (SiO2) with Hematite (Fe2O3) inclusions
Quartz Geode
Silicon Dioxide (SiO2) within Sedimentary or Igneous host
Gold Ore
Native Gold (Au)
Carnelian
Carnelian (variety of Chalcedony, SiO2)
Yellow Chalcedony
Cryptocrystalline Quartz (SiO2)
Greenschist (Greenstone)
Greenschist (Metamorphic rock containing chlorite, actinolite, and epidote)
Petrified Wood
Silicified wood / Permineralized wood (SiO2)
Red Jasper
Silicon Dioxide (Microcrystalline Quartz), SiO2
Milky Quartz
Silicon Dioxide (SiO2)
Ironstone (with Limonite/Goethite)
Ferruginous Sedimentary Rock (contains Limonite FeO(OH)·nH2O and Hematite Fe2O3)
Greenschist (Chlorite Schist)
Greenschist (Metamorphic rock dominated by chlorite, actinolite, and epidote)
Granitic Gneiss
Gneiss (high-grade metamorphic rock)
Fluorite and Rose Quartz
Fluorite (CaF2), Rose Quartz (SiO2)
Granodiorite
Granodiorite (containing Plagioclase, Quartz, and Biotite/Amphibole)
Pegmatitic granite (quartz–feldspar–mica rock)
Granitic pegmatite; primarily quartz (SiO₂), alkali/plagioclase feldspar, and minor mica, with iron-oxide staining
Ferruginous Sandstone
Sandstone (enriched with Iron Oxide)
Granite
Phaneritic Igneous Rock (composed primarily of Quartz, Alkali Feldspar, and Plagioclase)