Halite (Rock Salt)
Halite (Sodium Chloride, NaCl)
mineral
Category
Mineral Or Sedimentary Rock (With Mineral Inclusions)
Browse mineral or sedimentary rock (with mineral inclusions) specimens identified by the Rock Identifier community.
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Quartz (Milky or White Quartz)
Silicon Dioxide (SiO2)
mineral
Chert (Green and Black Jasper variant)
Cryptocrystalline Quartz (SiO2)
sedimentary
Weathered, iron-stained rock (likely sandstone or breccia)
Indeterminate clastic sedimentary rock; possible ferruginous sandstone or weathered breccia
sedimentary
Green Aventurine (Green Quartzite)
Silicon Dioxide (SiO2) with inclusions of Fuchsite mica
metamorphic
Gneiss with Quartz Veining
Gneiss (High-grade Metamorphic Rock)
metamorphic
Gneiss with Quartz Veining
Gneiss (High-grade Regional Metamorphic Rock)
metamorphic
Quartz with Chlorite inclusions
SiO2 with (Mg,Fe)3(Si,Al)4O10(OH)2⋅(Mg,Fe)3(OH)6
mineral
Pink halite (rock salt)
Halite (NaCl), likely iron- or clay-tinged pink halite
mineral
Tumbled clear quartz (rock crystal)
Quartz — silicon dioxide (SiO₂)
mineral
Yellow Jasper
SiO2 (Microcrystalline Quartz)
mineral
Picture Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Petrified Wood
Silicified Wood (SiO2)
sedimentary
Botryoidal Chalcedony / Quartz
Silicon Dioxide (SiO2)
mineral
Glacial Cobble with Granite Inclusion
Porphyritic Basalt or Andesite containing Granitic Xenolith
igneous
Rounded sandstone pebble
Quartz-rich sandstone (likely arkosic or lithic sandstone)
sedimentary
Quartz geode
Microcrystalline and crystalline quartz (SiO₂), likely with minor chalcedony or calcite
mineral
Sandstone (Quartzose Sandstone)
Arenite (primarily SiO2 with minor Fe2O3)
sedimentary
Greywacke with Quartz Veins
Lithic Sandstone (Greywacke) with SiO2 inclusions
sedimentary
Sandstone (with vugs or solution cavities)
Arenite (primarily Quartz and Feldspar with CaCO3 or SiO2 cement)
sedimentary
Mixed polished gemstone and mineral collection
Primarily quartz varieties (SiO₂), plus probable aventurine, rose quartz, amethyst, agate, jasper, serpentine, feldspar, and possibly dyed or man-made glass pieces
gemstone
Quartz (Milky and Bull Quartz)
Silicon Dioxide (SiO2)
mineral
Agate (Carnelian-Blue Agate mix)
Silicon Dioxide (SiO2)
mineral
Amygdaloidal Basalt
Amygdaloidal Basalt (Mafic volcanic rock)
igneous
Chert (Yellow Jasper)
Microcrystalline Quartz (SiO2)
sedimentary
Chalcedony (Agate/Chert variety)
Silicon Dioxide (SiO2)
mineral
Sandstone (Ferruginous)
Arenite with Iron Oxide cement
sedimentary
Amygdaloidal Basalt
Amygdaloidal Basalt (Mafic Volcanic Rock)
igneous
Sandstone (Weathered)
Arenite (primarily SiO2)
sedimentary
Quartz (Milky or Cloudy Quartz)
Silicon Dioxide (SiO2)
mineral
Red jasper
Jasper, microcrystalline quartz (SiO₂) colored mainly by iron oxides
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Banded Chert (Ironstone type)
Silicon Dioxide (SiO2) with Iron Oxide inclusions
sedimentary
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Common opal in iron-stained host rock
Opal (hydrated amorphous silica, SiO₂·nH₂O), likely common opal
mineral
Quartz-rich vein rock, likely milky quartz in schist
Milky quartz (SiO₂) with probable mica schist/greenschist host rock
metamorphic
Red Sandstone
Clastic sedimentary rock (primarily SiO2 with Fe2O3)
sedimentary
Vesicular Sandstone
Clastic Sedimentary Rock (Sandstone)
sedimentary
Quartz / Milky Quartz
Quartz (Silicon Dioxide - SiO2)
mineral
Garnet in Schist (Mica Schist with Garnet Inclusion)
Garnetiferous Mica Schist (X3Al2(SiO4)3)
metamorphic
Milky Quartz (Druzy Geode fragment)
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral