Gneiss (with Garnet)
Gneiss (Feldspar-Quartz-Biotite-Garnet Metamorphic Rock)
metamorphic
Category
Mineral (Specifically, A Variety Of The Mineral Species Pyrope Almandine Garnet)
Browse mineral (specifically, a variety of the mineral species pyrope almandine garnet) specimens identified by the Rock Identifier community.
Learn about Mineral (Specifically, A Variety Of The Mineral Species Pyrope Almandine Garnet) in the encyclopedia
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Schist
Mica Schist
metamorphic
Polished jasper pebble
Jasper, microcrystalline quartz (SiO₂) with iron-oxide impurities
metamorphic
Schist
Schist
metamorphic
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Schist
Schist (Foliated Metamorphic Rock)
metamorphic
Peach Aventurine
Quartz variety (SiO2 + Hematite/Goethite inclusions)
mineral
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Druzy quartz, possibly amethyst-bearing
Quartz (SiO₂), with purple coloration potentially from trace iron; exact variety is uncertain from the photo
mineral
Blue-green rough mineral specimen (identity uncertain)
Undetermined; the image is insufficient for a reliable mineral identification
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Moonstone (Feldspar variety)
Orthoclase Feldspar (KAlSi3O8)
mineral
Small reddish-brown mineral fragment
Uncertain; possibly iron-stained quartz, feldspar, or garnet
mineral
Crazy Lace Agate
Silicon Dioxide (SiO2) - Variety of Chalcedony
mineral
Red jasper (probable iron-rich chert)
Jasper, microcrystalline quartz (SiO₂) colored chiefly by hematite/goethite
sedimentary
Peach Moonstone
Orthoclase Feldspar (KAlSi3O8)
mineral
Druzy quartz on matrix
Quartz (SiO₂), microcrystalline crystal coating
mineral
Dalmatian Stone
Dalmatian Jasper (Aphanitic Igneous Rock with Arfvedsonite inclusions)
igneous
Small brown mineral fragment, possibly garnet
Unidentified; garnet is a tentative visual possibility (garnet-group silicates, X₃Y₂(SiO₄)₃)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Red Jasper with Quartz
Microcrystalline Quartz (SiO2)
sedimentary
Yellow Topaz (Imperial or Precious Topaz)
Al2SiO4(F,OH)2 (Aluminum Silicate Fluoride Hydroxide)
mineral
Emerald in Matrix
Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities
mineral
Tumbled carnelian (orange chalcedony)
Carnelian, a variety of microcrystalline quartz (SiO₂), often colored by iron oxides
gemstone
Polished carnelian (red-orange chalcedony)
Carnelian, a microcrystalline variety of quartz (SiO₂), commonly colored by iron oxides
gemstone
Quartz (Iron-stained)
Silicon Dioxide (SiO2)
mineral
Yellow Jasper
SiO2 (Silicon Dioxide)
sedimentary
Orange Quartz
Silicon Dioxide (SiO2) with iron oxide inclusions
mineral
Mica Schist
Mica Schist (contains Muscovite/Biotite, Quartz)
metamorphic
Unidentified light-colored rock or mineral specimen
Indeterminate; possibly weathered calcite-rich material, limestone, or pale quartz-bearing rock
mineral
Polished ocean jasper (likely orbicular jasper)
Microcrystalline quartz (chalcedony), SiO₂, with iron oxides and other silicates
mineral
Tumbled milky quartz
Quartz (silicon dioxide, SiO₂)
mineral
Yellow jasper or iron-stained chert
Microcrystalline quartz (SiO₂), commonly colored by goethite/limonite and other iron oxides
mineral
Polished jasper, likely brecciated or orbicular jasper
Microcrystalline quartz (chalcedony), SiO₂, with iron-oxide and other mineral impurities
mineral
Citrine Quartz
Silicon Dioxide (SiO2)
mineral
Blue Lace Agate
Silicon dioxide (SiO2) - Chalcedony variety
mineral
Jasper (specifically Yellow or Bumblebee-like Jasper)
Silicon Dioxide (SiO2) with impurities
sedimentary
Serpentine
Serpentine-group ((Mg,Fe,Ni,Al,Zn,Mn)3(Si,Al,Fe)2O5(OH)4)
metamorphic
Purple druzy quartz (likely dyed or coated)
Quartz, SiO₂ (trigonal crystal system)
mineral
Polished green-and-white jasper (likely ocean jasper or orbicular jasper)
Microcrystalline quartz/chalcedony (SiO₂) with chlorite, epidote, calcite, and iron-oxide inclusions
metamorphic
Milky Quartz
Silicon Dioxide (SiO2)
mineral