Chert (Flint nodule)
Silicon dioxide (SiO2)
Category
Browse synthetic polymer (synthetic material) specimens identified by the Rock Identifier community.
Chert (Flint nodule)
Silicon dioxide (SiO2)
Quartz with Muscovite Mica
Silicon Dioxide (SiO2) with Potassium Aluminum Silicate Hydroxide Fluoride (KAl2(AlSi3O10)(F,OH)2)
Chert (specifically a weathered Chert nodule or fragment)
Chert; Microcrystalline or Cryptocrystalline Quartz (SiO2)
Banded Chert (River Stone)
Silicon Dioxide (SiO2)
Decomposed Granite
Grano-diorite/Granite-residuum (SiO2 primary)
Granite
Granite (Felsic Plutonic Rock)
Chert (Jasper/Flint variety)
Microcrystalline quartz (SiO2)
Chert (Jasper)
Silicon dioxide (SiO2)
Chert (Flint)
Silicon dioxide (SiO2)
Chert (Flint)
Chert (SiO2)
Slate
Slate (foliated metamorphic rock)
Muscovite Mica (in Quartz matrix)
Potassium aluminum silicate hydroxide fluoride (KAl2(AlSi3O10)(F,OH)2)
Diamond
Diamond (C)
Chert (Commonly known as Flint or River Pebble)
Microcrystalline Quartz (SiO2)
Chert (and Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert / Flint
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Iron Meteorite
Siderite (Fe-Ni alloy, primarily Kamacite and Taenite)
Malachite in Matrix
Copper Carbonate Hydroxide (Cu2CO3(OH)2)
Chert (specifically Flint or Common Opal variant)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (Commonly called Jasper or Flint)
Chert (SiO2)
Chert (Tan/Brown)
Silicon Dioxide (SiO2) - Cryptocrystalline Quartz
Chert / Yellow Jasper
Silicon Dioxide (SiO2)
Greenstone
Metabasalt / Greenschist facies rock
Chert (specifically Red Chert / Jasper)
Silicon Dioxide (SiO2)
Chert (Jasper/Flint variety)
Microcrystalline Quartz (SiO2)
Chert
Microcrystalline silica (SiO2)
Chert (Chert Nodule)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Chert (Flint)
Microcrystalline or cryptocrystalline Quartz (SiO2)
Iron Ore (Hematite/Goethite)
Ironstone (Fe2O3 / FeO(OH))
Chert / Flint
Chert (Microcrystalline Quartz, SiO2)
Plum Blossom Tourmaline
Tourmaline with Lepidolite (Na,Ca)(Li,Mg,Al)3Al6(BO3)3Si6O18(OH)4
Chert (Common Opal/Agate mixture)
Microcrystalline Quartz (SiO2)
Chalcedony (Agate/Chert variety)
Silicon Dioxide (SiO2)
Chert (Commonly known as Flint)
Silicon Dioxide (SiO2)
Chert (Jasper/Common Chert Pebble)
Microcrystalline Quartz (SiO2)
Granite Pebble
Granite; primarily composed of Quartz (SiO2), Feldspar (KAlSi3O8), and Mica
Chert (Flint)
Chert (SiO2)
Slate
Slate
Chert (Jasper/Agate variety)
Microcrystalline Quartz (SiO2)
Flint (Chert)
Silicon Dioxide (SiO2)
Asphalt (Bituminous Concrete)
Bituminous mix containing aggregates and petroleum-based binder (CnH2n+2)
Weathered basalt or other dark volcanic rock
Likely basalt; predominantly plagioclase feldspar and pyroxene, possibly olivine and iron oxides