Red Jasper
Jasper (Silicon Dioxide) - SiO2
sedimentary
Category
Mineral Based Human Made Alloy
Browse mineral based human made alloy specimens identified by the Rock Identifier community.
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Goldstone (with Tiger's Eye and Quartz)
Aventurine glass (Synthetic SiO2 with Cu inclusions)
mineral
Fossil Shark Tooth
Carcharodon sp. (likely Otodus or similar Lamniformes order)
sedimentary
River Pebble (Gneiss/Schist mix)
Metamorphic rock aggregate
metamorphic
Granite fragment
Granite (Felsic intrusive igneous rock)
igneous
Sandstone (with Iron Staining)
Arenite
sedimentary
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
Epidote
Epidote (Ca2(Al, Fe)3(SiO4)3(OH))
mineral
Schist
Mica Schist
metamorphic
Granite
Granite (Felsic Plutonic Rock)
igneous
Muscovite Mica in Quartz Matrix
Muscovite (KAl2(AlSi3O10)(OH)2) in Quartz (SiO2)
mineral
Chert (Smoky Variety)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Brown variety / Common Jasper)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Nodule)
Silicon Dioxide (SiO2)
sedimentary
Chert (often called Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Chert (specifically Flint or Jasper variant)
Microcrystalline quartz (SiO2)
sedimentary
Chert (often called Flint)
Chert (Microcrystalline Quartz, SiO2)
sedimentary
Sea Glass
Amorphous Silicon Dioxide (Man-made glass weathered by nature)
mineral
Beach Pebble (Gabbro or Basalt Porphyry)
Mafic Igneous Rock (Porphyritic Basalt / Gabbro)
igneous
Granite
Phaneritic Felsic Intrusive Rock
igneous
Schist
Mica Schist
metamorphic
Sandstone (Ferruginous)
Arenite (primarily SiO2 with Fe2O3 staining)
sedimentary
Banded Chert
Cryptocrystalline Quartz (SiO2)
sedimentary
Chert (with Quartz vein/coating)
Microcrystalline Quartz (SiO2)
sedimentary
Biotite Schist with Garnet
Garnet-Biotite Schist
metamorphic
Hag Stone
Perforated sedimentary rock (typically limestone, sandstone, or flint)
sedimentary
Sandstone Pebble
Sedimentary Rock (Quartzose Sandstone)
sedimentary
Yellow Ochre / Limonite
Limonite (Hydrated Iron(III) Oxide-Hydroxide, FeO(OH)·nH2O)
mineral
Green Schist
Greenschist (composed of chlorite, epidote, and actinolite)
metamorphic
Vesicular Basalt with Secondary Mineral Infill
Mafic Volcanic Rock (Basalt)
igneous
Epidote
Epidote (Ca2(Al, Fe)3(SiO4)3(OH))
mineral
Imperial Topaz
Al2SiO4(F,OH)2 (Fluorine-bearing Aluminum Silicate)
gemstone
Schist
Mica Schist
metamorphic
Greenschist
Chlorite schist
metamorphic
Chert (White Chert / Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Quartz with Muscovite Mica
Silicon Dioxide (SiO2) with Potassium Aluminum Silicate Hydroxide (KAl2(AlSi3O10)(OH)2)
mineral
Gravel or Crushed Stone
Fragmented Aggregate Stone
sedimentary or igneous fragment
Granite
Granite (Felsic Plutonic Rock)
igneous
Crushed Granite and Basalt
Phaneritic Igneous Rock / Aphanitic Igneous Rock
igneous
Fuchsite (Chrome Mica)
K(Al,Cr)2(AlSi3O10)(OH)2
mineral
Sandstone pebble
Sandstone (Quartz-rich Arenite)
sedimentary
Chert (variations include Flint or Jasper)
Silicon Dioxide (SiO2)
sedimentary