Scoria (Lava Rock)
Extrusive Igneous Scoria (Vesicular Basalt)
igneous
Category
Sedimentary Or Igneous Associated Mineral
Browse sedimentary or igneous associated mineral specimens identified by the Rock Identifier community.
Scoria (Vesicular Basalt)
Vesicular Basaltic Andesite
igneous
Sandstone (Red Flagstone)
Clastic sedimentary rock (primarily Quartz - SiO2)
sedimentary
Dacite
Dacite (Intermediate volcanic rock)
igneous
Granite
Granite (composition of Quartz, Feldspar, and Mica)
igneous
Granodiorite with Biotite Mica
Granodiorite (containing Quartz, Plagioclase Feldspar, and Biotite Mica)
igneous
Red Jasper
Jasper (Silicon Dioxide, SiO2)
sedimentary
Chert (variations include Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Dalmation Stone (often called Dalmatian Jasper)
Peralkaline Rock (Microgranite/Aplite), SiO2 with inclusions of Arfvedsonite
igneous
Dalmation Stone (Dalmation Jasper)
Peralkaline rock (primarily Feldspar and Quartz with Arfvedsonite spots)
igneous
Epidote (or Epidote-rich rock)
Epidote. Mineral formula: Ca2(Al,Fe)3(SiO4)3(OH).
Mineral, often found in metamorphic rocks but also in sedimentary and igneous rocks
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
mineral
Glauconitic Sandstone
Glauconitic arenite (K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2
sedimentary
Prehnite
Prehnite (Ca2Al(AlSi3O10)(OH)2)
Mineral
Epidote
Epidote (Ca2(Al,Fe)3(SiO4)3(OH))
mineral
Banded Gneiss (Variety of Gneiss)
Gneiss (specifically, a variety exhibiting prominent banding; mineral composition can vary, but often contains quartz, feldspar, mica, and amphibole)
Metamorphic Rock
Milky Quartz with Iron Inclusions
Quartz (Silicon Dioxide, SiO2)
mineral
Pumice
Pumice (volcanic rock)
Igneous
Granite (tumbled pebble)
Granite (Plutonic Igneous Rock)
Igneous Rock
Malachite with Chrysocolla
Copper carbonate hydroxide (Cu2CO3(OH)2) and Hydrated copper silicate (Cu,Al)2H2Si2O5(OH)4·nH2O
mineral
Green Jasper
Silicon Dioxide (SiO2)
sedimentary
Hematite
Hematite (Iron(III) oxide, Fe2O3)
mineral
Blue Chalcedony
Silicon Dioxide (SiO2)
mineral
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
mineral
Magnetite (potentially Hematite-rich)
Magnetite (Fe3O4)
mineral
Green Fluorite
Calcium Fluoride (CaF2)
mineral
Druzy Quartz
Silicon Dioxide (SiO2)
mineral
Yellow Jasper
Silicon Dioxide (SiO2) with iron oxide impurities
sedimentary
Dalmatian Stone
Peralkaline rhyolite
igneous
Moonstone
Adularia (orthoclase) or Albite (plagioclase), a potassium aluminum silicate of the feldspar group
Mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Granite
Phaneritic Felsic Igneous Rock (composed primarily of Quartz, Feldspar, and Mica)
igneous
Diorite (Dalmatian Stone variant)
Phaneritic Plutonic Igneous Rock (Medium to Fine-grained Diorite)
igneous
Granite
Phaneritic Plutonic Igneous Rock (composed of Quartz, Alkali Feldspar, and Plagioclase)
igneous
Diorite (Salt and Pepper Rock)
Diorite
igneous
Diorite
Diorite (Intermediate intrusive igneous rock)
igneous
Pink Granite
Granite (Phaneritic intrusive igneous rock)
igneous
Andesite
Andesite (Intermediate Extrusive Volcanic Rock)
igneous
Granite
Phaneritic Felsic Igneous Rock (composed primarily of Quartz and Alkali Feldspar)
igneous
Garnet Rhyolite
Rhyolite (high-silica volcanic rock) with almandine/spessartine garnet
igneous
Dolomite
Dolomite (CaMg(CO3)2)
Mineral
Moonstone
Orthoclase Feldspar (specifically showing adularescence)
Mineral