Basalt
Basalt (Mafic igneous rock)
igneous
Category
Igneous Or Metamorphic (Base Stone); Anthropogenic (Decoration)
Browse igneous or metamorphic (base stone); anthropogenic (decoration) specimens identified by the Rock Identifier community.
Gneiss with Quartz Vein
Gneiss containing Quartz (SiO2) filler
metamorphic
Unakite or Epidosite
Epidosite (Mineral composition: Epidote, Feldspar, and Quartz)
metamorphic
Gneiss
Gneiss
metamorphic
Greenschist
Greenschist (Chlorite Schist)
metamorphic
Bumblebee Jasper
Hydrothermal Volcanic Rock (Primarily Calcite with Orpiment - As2S3, Realgar, and Pyrite)
igneous
Mica Schist with Pyrite
Muscovite/Biotite Schist with Iron Sulfide (FeS2)
metamorphic
Blue Apatite
Apatite-(CaF), Ca5(PO4)3F (Calcium Fluorophosphate)
mineral
Amethyst (Chevron or Banded Amethyst)
Silicon Dioxide (SiO2) with trace Iron (Fe)
mineral
Milky Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
White Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Garnet (Almandine/Pyrope series)
Silicate mineral (Almandine: Fe3Al2Si3O12; Pyrope: Mg3Al2Si3O12)
mineral
Dalmatian Stone (Dalmatian Jasper)
Dalmatian Stone (A variety of Perthite / Aplite)
Igneous
Basalt with Epidote Veins
Mafic Igneous Rock (Basalt)
igneous
Garden Quartz (Lodolite)
Quartz with inclusions (SiO2 + various inclusions such as Chlorite, Hematite, or Feldspar)
mineral
Amygdaloidal Basalt
Amygdaloidal Basalt (Mafic volcanic rock including secondary mineral infills)
Igneous
Milky Quartz with Chlorite/Moss Infusions
Silicon Dioxide (SiO2)
mineral
Basalt (Porphyritic)
Porphyritic Mafic Extrusive (Basalt)
igneous
Granite
Phaneritic intrusive igneous rock (consisting mainly of Quartz, Alkali Feldspar, and Plagioclase)
igneous
Basalt
Basalt (Mafic Extrusive Igneous Rock)
igneous
Mica Schist
Mica Schist (primarily Muscovite or Biotite Schist)
metamorphic
Basalt Beach Pebble
Basalt (Aphanitic Mafic Volcanic Rock)
igneous
Granite Pebble
Granite (Phaneritic intrusive igneous rock consisting of Quartz, Alkali Feldspar, and Plagioclase)
igneous
Granodiorite with Quartz Veining
Granodiorite (containing Plagioclase Feldspar, Quartz, and Biotite/Hornblende) with Quartz (SiO2) veins
igneous
Basalt (River Cobble)
Basalt (Mafic volcanic rock)
igneous
Basalt
Mafic volcanic rock (primarily plagioclase feldspar and pyroxene)
Igneous
Granite
Phaneritic plutonic rock (composed of Quartz, Feldspar, and Mica/Amphibole)
igneous
Basalt
Basalt (Phaneritic/Aphanitic Mafic Igneous Rock)
igneous
Gneiss (Banded Gneiss)
Gneiss
metamorphic
Basalt River Stone
Aphanitic Mafic Igneous Rock (primarily Plagioclase and Pyroxene)
igneous
Porphyritic Basalt
Porphyritic Basalt (with plagioclase phenocrysts)
igneous
Basalt
Basalt (Mafic Extrusive Igneous Rock)
igneous
Basalt
Basalt (Mafic Extrusive)
igneous
Porphyritic Basalt (River Rock)
Porphyritic Basalt
igneous
Basalt
Basalt (Composition primarily Plagioclase feldspar, Pyroxene, and Olivine)
igneous
Basalt Cobble
Aphanitic Mafic Igneous Rock (Basalt)
igneous
Basalt
Vesicular Basalt
igneous
Granite
Granite (Felsic Plutonic Rock)
igneous
River Rock (Basalt)
Basalt (SiO2 range: 45-52%)
igneous
Quartz with Mica (Micaceous Quartz)
Silicon Dioxide (SiO2) with Phyllosilicates
igneous/metamorphic
White Topaz
Aluminum Silicate Fluoride Hydroxide; Al2SiO4(F,OH)2
mineral
Rainbow Hematite (Man-made/Treated)
Tumbled Hematite with Titanium/Anodized coating (Iron(III) oxide, Fe2O3)
mineral