Magnetite / Iron Ore (likely Hematite-Magnetite mix)
Magnetite (Fe3O4)
mineral
Category
Igneous, Sedimentary, And Metamorphic Mix
Browse igneous, sedimentary, and metamorphic mix specimens identified by the Rock Identifier community.
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Serpentinite
Serpentinite (Hydrated magnesium iron phyllosilicate)
metamorphic
Beryl (Variety Mix)
Be3Al2(Si6O18)
Mineral
Serpentinite (or Green Quartz Pebble)
Mg3Si2O5(OH)4 (Serpentine group) / SiO2 (Quartz mix)
metamorphic
Granitic Pegmatite
Granite (with coarse-grained Quartz, Feldspar, and Mica components)
igneous
Ferruginous Quartz
Silicon Dioxide with Iron Oxide (SiO2 + Fe2O3)
mineral
Orange Quartzite (Tumbled)
Quartzite (SiO2)
metamorphic
Gravel or Crushed Stone
Fragmented Aggregate Stone
sedimentary or igneous fragment
Granite
Granite (composed of Quartz, Feldspar, and Mica)
igneous
Tumbled dark gray stone, likely basalt
Basalt; fine-grained mafic volcanic rock composed mainly of plagioclase feldspar and pyroxene, commonly with olivine
igneous
River Rocks (Polished River Pebbles)
Stream-rounded clastic sediments
Mixed (Sedimentary, Igneous, and Metamorphic)
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
mineral
Beaded Jewelry (Assorted Gemstones)
Various minerals, including but not limited to Quartz (SiO2), Garnet (X3Y2(SiO4)3), Jade (Na(Al,Fe)Si2O6), Amethyst (SiO2),等の多様な組み合わせ
Mineral, Jewelry
Diorite
Diorite (Intermediate intrusive igneous rock)
igneous
Milky Quartz in Gneiss
Quartzite / Foliated Gneiss containing SiO2
metamorphic
Quartzite / Sandstone / Chert Mix
Silicon Dioxide (SiO2)
sedimentary and metamorphic
Diorite
Intermediate intrusive igneous rock
igneous
Diorite
Diorite (plutonic igneous rock)
igneous
Asphalt Concrete
Bituminous Concrete / Asphaltic Composite
not a natural rock (man-made composite)
Dyed Quartzite (Pink/Magenta)
Silicon Dioxide (SiO2) - Artificially Colored Quartzite
mineral
Cobblestones (Basalt/River Rock)
Polished lithic fragments and rounded pebbles
sedimentary
Jasper and Quartzite mix
Silicon Dioxide (SiO2) with impurities
sedimentary or metamorphic
Diorite (Polished River Pebble)
Diorite (Intermediate intrusive igneous rock)
igneous
Diorite Porphyry (Polished Pebble)
Diorite
igneous
Zoisite with Rubellite (Ruby in Zoisite)
Zoisite with inclusions of Hornblende (Anyolite)
metamorphic
Granatic Pegmatite
Pegmatitic Granite
igneous
Crushed Stone / Greywacke
Greywacke (Indurated Sandstone)
sedimentary
Unakite
Epidotized Granite
metamorphic
Unakite
Unakite (Epidotized Granite)
metamorphic
Amethyst and Ruby in Zoisite
Silicon Dioxide (SiO2) and Anyolite (Zoisite-Hornblende-Ruby mix)
mineral and metamorphic rock
River Pebble (Quartz/Sandstone)
Silicon Dioxide (SiO2) Mix
sedimentary
Unakite
Unakite (Epidotized Granite)
metamorphic
Rhodonite, Gray Moonstone, and White Feldspar Mix
Multiple: MnSiO3 (Rhodonite), (K,Na)AlSi3O8 (Feldspar/Moonstone)
mineral
Granite and Igneous Mix
Phaneritic Felsic to Mafic Intrusive Rocks
igneous
Chalcopyrite
Copper Iron Sulfide (CuFeS2)
mineral
Granitic Quartz or Pegmatite
Quartz with Orthoclase Feldspar (SiO2 + KAlSi3O8)
igneous
Copper Ore (Malachite and Limonite bearing)
Cuprite, Malachite, and Limonite mixture
mineral
Granite and Mixed Landscape Gravel
Plutonic Igneous Rock / Weathered Alluvium
igneous
Granite
Granite (Phaneritic intrusive igneous rock)
igneous
Rounded granitic gneiss or granite cobble
Granite; primarily quartz, plagioclase and potassium feldspar with biotite/hornblende
igneous
Diorite
Diorite (intermediate intrusive igneous rock)
igneous
Diorite
Diorite (intermediate intrusive igneous rock)
igneous