Quartz Vein in Host Rock (clastic sediment)
Silicon Dioxide (SiO2) in matrix
Category
Browse industrial byproduct (anthropogenic material) specimens identified by the Rock Identifier community.
Quartz Vein in Host Rock (clastic sediment)
Silicon Dioxide (SiO2) in matrix
Basalt with Porphyritic Texture
Porphyritic Basalt
Quartzite
Quartzite (SiO2)
Quartz Vein in Host Rock
Silicon Dioxide (SiO2) in matrix
Garnet
Garnet Group (formula varies, e.g., Almasndine: Fe3Al2(SiO4)3)
Gold and Diamond
Native Gold (Au) and Diamond (C)
Quartzite
Quartzite (High-purity SiO2)
Quartz on Chlorite Schist
Chlorite Schist (Mg,Fe)3(Si,Al)4O10(OH)2 with Quartz (SiO2)
Garnet Schist
Almandine-Mica Schist
Sandstone
Arenite (SiO2 principal component)
Quartz with Mica inclusions (likely Iron-stained)
Silicon Dioxide (SiO2) with Phyllosilicates
Moqui Marble
Iron Oxide Concretion
Banded Agate
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Tektite (Indochinite)
Tektite (Silica-rich natural glass)
Granitic Pegmatite with Schorl Tourmaline
Granitic Pegmatite (Schorl: NaFe3Al6(BO3)3Si6O18(OH)4)
Schist
Mica Schist
Gold-bearing Quartz
Native Gold (Au) in Quartz (SiO2) matrix
Bull Quartz (Milky Quartz)
Quartz (Silicon Dioxide - SiO2)
Bort or Carbonado
C - Polycrystalline Diamond
Serpentine
Serpentinite (Mg, Fe, Ni)3Si2O5(OH)4
Diamond (Round Brilliant Cut)
Diamond (Pure Carbon, C)
Diamond in Kimberlite
Kimberlite host rock with C (Carbon) inclusion
Biotite Schist (with Garnet and Pyrite)
K(Mg,Fe)3AlSi3O10(OH,F)2 (Biotite focus)
Milky Quartz Mushroom Carving
Quartz (Silicon Dioxide, SiO2)
Yellow Quartzite (River Pebble)
Quartzite (primarily SiO2)
Diamond (set in jewelry)
Carbon (C)
Chert / Jasper
Silicon Dioxide (SiO2)
Schist
Mica Schist
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz (Iron-Stained Quartz Pebble)
Silicon Dioxide (SiO2)
Sandstone (with Iron Staining)
Clastic Sedimentary Rock (primarily SiO2)
Pumice
Vesicular volcanic glass (primarily SiO2)
Kimberlite
Kimberlite (Group I or II)
Iron Ore (Goethite and Hematite)
Iron Oxyhydroxide (α-FeO(OH)) and Iron(III) oxide (Fe2O3)
Quartz with Muscovite Mica
SiO2 with KAl2(AlSi3O10)(OH)2
Pegmatite
Coarse-grained Igneous Rock (Granitic Pegmatite)
Anthracite Coal
Anthracite (Carbon)
Quartzite
Quartzite (primarily SiO2)
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
Sandstone
Sandstone (clastic sedimentary rock), primarily SiO2
Ruby (Corundum)
Aluminum Oxide (Al2O3) with Chromium traces