Meteorite
Chondrite / Iron-Nickel Meteorite
meteorite
Category
Mineral Variant
Browse mineral variant specimens identified by the Rock Identifier community.
Learn about Mineral Variant in the encyclopedia
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Ferruginous Sandstone (with Iron Oxide staining)
Clastic Sedimentary Rock - Quartz Arenite/Wacke
sedimentary
Septarian Nodule (Thunder Egg variant)
Septarian concretion (Calcite, Aragonite, and Limestone)
sedimentary
Eroded Brick or Pumice-like Scoria
Vesicular Basalt / Scoria (Anthropogenic variant: Eroded Firebrick)
igneous
Tumbled tiger’s-eye
Chatoyant quartz, chiefly fibrous quartz (SiO₂) pseudomorphically replacing crocidolite
gemstone
Chert (Pink Jasper variant)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Ferruginous Conglomerate
Conglomerate with Iron-Oxide Matrix (SiO2 + Fe2O3/FeO(OH))
sedimentary
Chert (Flint)
Silicon Dioxide (SiO2)
sedimentary
Coquina Jasper
Fossiliferous Chalcedony (SiO2)
sedimentary
Snowflake Obsidian (Flower Jasper variant)
Vitreous volcanic silicate with cristobalite inclusions
igneous
Chert (Jasper or Flint variant)
Chert (composed of microcrystalline quartz, SiO2)
sedimentary
Chert / Jasper
Silicon Dioxide (SiO2)
sedimentary
Quartzite
Quartzite (SiO2 with impurities)
metamorphic
Quartzite
Quartzite (primarily SiO2)
metamorphic
Chert (Red Jasper variant)
Microcrystalline Quartz (SiO2)
sedimentary
Yellow Jasper (Chert variant)
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Chert (Red Jasper variant)
Silicon dioxide (SiO2)
sedimentary
Chert (Jasper / Flint variant)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Jasper / Flint variant)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Jasper / Flint Variant)
Microcrystalline Quartz (SiO2)
sedimentary
Sandstone (likely Graywacke or Arkose variant)
Clastic Sedimentary Rock (SiO2 with assorted lithic fragments)
sedimentary
Quartzite
Metamorphosed Sandstone (SiO2)
metamorphic
Chert (specifically Jasper or Flint variant)
Cryptocrystalline Quartz (SiO2)
sedimentary
Chert (Jasper Variant likely)
Silicon Dioxide (SiO2)
Sedimentary Rock or Mineral (depending on origin and purity)
Chert (specifically Flint or Jasper variant)
Microcrystalline quartz (SiO2)
sedimentary
Chert (Common Opal/Jasper variant)
Silicon Dioxide (SiO2)
sedimentary
Jasper (likely Polychrome or Mookaite variants)
Silicon Dioxide (SiO2) with iron oxide and hydroxide inclusions
sedimentary (chemically precipitated)
Chert (Flint)
Chert (Silicon Dioxide, SiO2)
sedimentary
Chert (Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Chert / Chalcedony Nodules
Silicon Dioxide (SiO2)
sedimentary
Chert (and Flint)
Silicon Dioxide (SiO2)
sedimentary
Chert (specifically Yellow or Brown Chert / Jasper)
Silicon Dioxide (SiO2)
sedimentary
Chert (with Iron Staining)
Silicon Dioxide (SiO2 / Cryptocrystalline Quartz)
sedimentary
Chalcedony (including Carnelian and Agate variants)
Silicon Dioxide (SiO2)
mineral
Coarse-grained granite
Granite, typically quartz–alkali feldspar–plagioclase–mica aggregate
igneous
Obsidian
Obsidian (principally SiO2)
igneous
Fuchsite or Green Mica Schist
Muscovite variant (KAl2(AlSi3O10)(OH)2 with Cr)
metamorphic
Granite
Granite (phaneritic intrusive igneous rock consisting of 20-60% quartz, orthoclase/plagioclase feldspar, and mica/amphibole)
igneous
Serpentine
Antigorite/Lizardite (Mg,Fe)3Si2O5(OH)4
metamorphic
Chert (often called Flint)
Chert (SiO2)
sedimentary
Porphyritic Basalt (Peanut Obsidian/Star Galaxy-style)
Porphyritic Basalt (Silica-rich Volcanic Rock)
igneous