Granitic Gneiss
Gneiss (Metamorphic rock of granitic composition)
Category
Browse sedimentary or igneous associated mineral specimens identified by the Rock Identifier community.
Granitic Gneiss
Gneiss (Metamorphic rock of granitic composition)
Quartz-veined Sedimentary Rock
Hydrothermally veined Clastic Sedimentary Rock (SiO2 veins in Matrix)
Banded Agate (variety of Chalcedony)
Agate (SiO2)
Quartz
Quartz (SiO2)
Orange Calcite
Calcite (CaCO3)
Leopard Skin Jasper
Chalcedony (cryptocrystalline quartz) with inclusions
Amygdaloidal Basalt
Amygdaloidal Mafic Volcanic Rock
Eudialyte in Matrix
Eudialyte [Na15Ca6(Fe,Mn)3Zr3(Si25O73)(O,OH,H2O)3(Cl,OH)2]
Spinel
Magnesium Aluminum Oxide (MgAl2O4)
Bornite (Peacock Ore)
Bornite (Cu5FeS4)
Purple Lepidolite with Quartz
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
Quartzite
Quartzite
Yellow Aventurine
Quartz (Silicon Dioxide) with Mica inclusions (SiO2)
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Green Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite mica
Black Tourmaline
Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Milky Quartz
Silicon Dioxide (SiO2)
Banded Agate (specifically Carnelian Agate)
Silicon dioxide (SiO2) - Chalcedony variety
Turquoise
Hydrated phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)
Sodalite
Sodalite, Na8(Al6Si6O24)Cl2
Massive Quartz with Host Rock
Silicon Dioxide (SiO2)
Granite (Phaneritic Igneous Rock)
Granite
Granite
Phaneritic Felsic Igneous Rock (composed of SiO2, KAlSi3O8, NaAlSi3O8)
Granite
Granite (a felsic intrusive igneous rock)
Mica Schist (with Golden/Biotite inclusions)
K(Mg,Fe)3AlSi3O10(F,OH)2 (Biotite), KAl2(AlSi3O10)(F,OH)2 (Muscovite)
Quartz (Iron-Stained)
Silicon Dioxide (SiO2)
Granite
Granite (a felsic intrusive igneous rock)
Porphyry (likely Porphyritic Andesite or Basalt)
Porphyritic Igneous Rock
Brachiopod Fossil in Limestone
Phylum Brachiopoda (likely Order Spiriferida), CaCO3 (Calcite)
Diorite
Diorite (Intermediate intrusive igneous rock)
Granite
Granite (Felsic Plutonic Rock)
Sandstone (Ferruginous)
Arenite (with Goethite/Limonite cement)
Red Jasper
Silicon Dioxide (SiO2) - variety of Chalcedony
Hypersthene
Hypersthene ((Mg,Fe)SiO3)
Sodalite
Sodalite (Na4Al3Si3O12Cl)
Sunstone
Oligoclase (Plagioclase Feldspar), (Na,Ca)(Si,Al)4O8
Muscovite Mica
Muscovite (KAl2(AlSi3O10)(OH)2)
Quartz (in matrix)
Quartz (SiO₂)
Milky Quartz with Iron Staining
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)