Granite
Phaneritic plutonic rock (Felsic)
Category
Browse mineral in igneous rock specimens identified by the Rock Identifier community.
Granite
Phaneritic plutonic rock (Felsic)
Basalt with Epidote
Mafic volcanic rock with Epidote (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
Diorite
Phaneritic intermediate plutonic rock
Milky Quartz
Silicon Dioxide (SiO2)
Vesicular Basalt
Basalt with secondary mineral infilling (Amygdaloidal Basalt)
Granite
Phaneritic Plutonic Igneous Rock (composed of quartz, alkali feldspar, and plagioclase)
Vesicular Basalt
Vesicular Basalt (rich in silicate minerals mostly Plagioclase and Pyroxene)
Greenstone (Amygdaloidal Basalt)
Amygdaloidal Basalt (frequently composed of Plagioclase Feldspar, Pyroxene, and Olivine with Chlorite inclusions)
Quartz with Iron Stains
Silicon Dioxide (SiO2) with FeOx inclusions
Milky Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
Basalt River Stone
Basalt
Granite
Granite (Alkali-feldspar, Quartz, and Plagioclase composition)
Pyrite
Iron Sulfide (FeS2)
Fluorite
Fluoride (Calcium Fluoride - CaF2)
Blue Calcite
Calcium Carbonate (CaCO3)
Granite
Granite (a felsic intrusive igneous rock)
Clear Quartz
Silicon Dioxide (SiO2)
Banded Gneiss
Gneiss (High-grade Metamorphic Rock)
Granite
Phaneritic Igneous Rock (primarily Quartz, Feldspar, and Mica)
Diorite
Diorite (intermediate intrusive igneous rock)
Smoky Quartz
Silicon Dioxide (SiO2)
Quartz Pebble (Milky Quartz)
Silicon Dioxide (SiO2)
Quartz Crystal (specifically a small Clear Quartz point)
Silicon Dioxide (SiO2)
Carnelian (a variety of Chalcedony)
SiO2 (Silicon Dioxide with Iron Oxide impurities)
Granite
Granite (phaneritic felsic intrusive rock)
Banded Gneiss (with Quartz Vein)
Gneiss (Metamorphic rock of varying mineralogy)
Pink Granite
Granite (Phaneritic intrusive rock)
Vesicular Basalt
Amygdaloidal Basalt (Mafic extrusive volcanic rock)
Diorite
Diorite (Intermediate intrusive igneous rock)
Blue Calcite
Calcium Carbonate (CaCO3)
Pyrite
Iron Sulfide (FeS2)
Milky Quartz
Silicon Dioxide (SiO2)
Pyrite
Iron Sulfide (FeS2)
Amethyst
Amethyst (Silicon Dioxide with iron impurities), SiO2
Gneiss (River Cobble)
Gneiss (Foliated Metamorphic Rock)
Basalt with Quartz Veins
Basalt (composition: SiO2, MgO, FeO, Al2O3, CaO)
Basalt with Secondary Mineral Inclusions
Amygdaloidal Basalt (Mafic volcanic rock, primarily Augite and Plagioclase)
Amygdaloidal Rhyolite
Amygdaloidal felsic extrusive rock
Aquamarine
Beryl (Be3Al2Si6O18 with iron impurities)
Amethyst
Amethyst (Silicon Dioxide - SiO2 with iron impurities)
Diorite
Diorite (intermediate intrusive igneous rock)