Rock Identifier

Category

Mineral (Synthetic Glass)

Browse mineral (synthetic glass) specimens identified by the Rock Identifier community.

Sandstone (with Lichen) (Arenite (primarily SiO2)) — sedimentary

Sandstone (with Lichen)

Arenite (primarily SiO2)

Sandstone (likely Quartzose Sandstone) (Arenite (composed primarily of SiO2)) — sedimentary

Sandstone (likely Quartzose Sandstone)

Arenite (composed primarily of SiO2)

Sandstone (Arenite (composed primarily of SiO2)) — sedimentary

Sandstone

Arenite (composed primarily of SiO2)

Chert (Flint) (Silicon dioxide (SiO2)) — sedimentary

Chert (Flint)

Silicon dioxide (SiO2)

Chert (Jasper/Flint variety) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Jasper/Flint variety)

Microcrystalline Quartz (SiO2)

Quartz Pebble (Crystalline Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Crystalline Silicon Dioxide (SiO2)

Jasper containing epidote (Unakite-like) (Epidotized Jasper (SiO2 with Ca2(Al,Fe)3(SiO4)3(OH))) — metamorphic

Jasper containing epidote (Unakite-like)

Epidotized Jasper (SiO2 with Ca2(Al,Fe)3(SiO4)3(OH))

Sandstone (Ferruginous) (Clastic sedimentary rock (primarily SiO2 with Fe2O3 cement)) — sedimentary

Sandstone (Ferruginous)

Clastic sedimentary rock (primarily SiO2 with Fe2O3 cement)

Quartz / Quartzite Fragment (Silicon Dioxide (SiO2)) — mineral / metamorphic

Quartz / Quartzite Fragment

Silicon Dioxide (SiO2)

mineral / metamorphic

Aquamarine (Beryllium aluminum silicate (Be3Al2Si6O18)) — mineral

Aquamarine

Beryllium aluminum silicate (Be3Al2Si6O18)

Smoky Quartz (Silicon Dioxide (SiO2) with aluminum impurities) — mineral

Smoky Quartz

Silicon Dioxide (SiO2) with aluminum impurities

Aquamarine (Beryllium aluminum silicate (Be3Al2Si6O18)) — mineral

Aquamarine

Beryllium aluminum silicate (Be3Al2Si6O18)

Amethyst (Amethyst (Silicon Dioxide - SiO2 with iron impurities)) — mineral

Amethyst

Amethyst (Silicon Dioxide - SiO2 with iron impurities)

Clear Quartz Crystal (Silicon Dioxide (SiO2)) — mineral

Clear Quartz Crystal

Silicon Dioxide (SiO2)

Amethyst (Amethyst (Silicon Dioxide, SiO2 with Iron impurities)) — mineral

Amethyst

Amethyst (Silicon Dioxide, SiO2 with Iron impurities)

Amethyst (Silicon Dioxide (SiO2) with iron impurities) — mineral

Amethyst

Silicon Dioxide (SiO2) with iron impurities

Aquamarine (Beryl (Be3Al2Si6O18 with iron impurities)) — mineral

Aquamarine

Beryl (Be3Al2Si6O18 with iron impurities)

Amethyst (Silicon Dioxide (SiO2) with iron impurities) — mineral

Amethyst

Silicon Dioxide (SiO2) with iron impurities

Quartz with Tourmaline and Iron Staining (Silicon Dioxide (SiO2) with Schorl (NaFe2+3Al6(Si6O18)(BO3)3(OH)3OH)) — igneous

Quartz with Tourmaline and Iron Staining

Silicon Dioxide (SiO2) with Schorl (NaFe2+3Al6(Si6O18)(BO3)3(OH)3OH)

Blue Aventurine (Quartzite with Dumortierite inclusions (SiO2)) — metamorphic

Blue Aventurine

Quartzite with Dumortierite inclusions (SiO2)

Chert (White Chert / Flint) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (White Chert / Flint)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (with Quartz Vein) (Chert (Siliceous sedimentary rock, predominantly Microcrystalline Quartz SiO2)) — sedimentary

Chert (with Quartz Vein)

Chert (Siliceous sedimentary rock, predominantly Microcrystalline Quartz SiO2)

Yellow Quartz / Quartzite Pebble (Silicon Dioxide (SiO2)) — mineral

Yellow Quartz / Quartzite Pebble

Silicon Dioxide (SiO2)

Quartz (Milky/Clear) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky/Clear)

Silicon Dioxide (SiO2)

Quartz (Microcrystalline variety) (Silicon Dioxide (SiO2)) — mineral

Quartz (Microcrystalline variety)

Silicon Dioxide (SiO2)

Quartz (Milky/Opaque variety) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky/Opaque variety)

Silicon Dioxide (SiO2)

Quartz (specifically Milky or Clear Chunk) (Silicon Dioxide (SiO2)) — mineral

Quartz (specifically Milky or Clear Chunk)

Silicon Dioxide (SiO2)

Green Aventurine (Aventurine Quartz (SiO2 + K(Al,Cr)2AlSi3O10(OH)2)) — mineral

Green Aventurine

Aventurine Quartz (SiO2 + K(Al,Cr)2AlSi3O10(OH)2)

Rough Diamond (Native Carbon (C)) — mineral

Rough Diamond

Native Carbon (C)

Rough Diamond (Diamond (pure Carbon, C)) — mineral

Rough Diamond

Diamond (pure Carbon, C)

Aventurine (Green) (Aventurine Quartz (SiO2 + Fuchsite inclusions)) — mineral

Aventurine (Green)

Aventurine Quartz (SiO2 + Fuchsite inclusions)

Jasper (specifically Yellow/Red Jasper) (Silicon Dioxide (SiO2) with iron oxide inclusions) — sedimentary

Jasper (specifically Yellow/Red Jasper)

Silicon Dioxide (SiO2) with iron oxide inclusions

Chert (Nodular Chert) (Microcrystalline Silica (SiO2)) — sedimentary

Chert (Nodular Chert)

Microcrystalline Silica (SiO2)

Slag Glass (Amorphous Silica / Glass Slag) — industrial byproduct (anthropogenic rock-like material)

Slag Glass

Amorphous Silica / Glass Slag

industrial byproduct (anthropogenic rock-like material)

Sandstone (Arenite (primarily SiO2 with trace Fe2O3)) — sedimentary

Sandstone

Arenite (primarily SiO2 with trace Fe2O3)

Sandstone (Weathered) (Arenite (primarily SiO2)) — sedimentary

Sandstone (Weathered)

Arenite (primarily SiO2)

Sandstone (clastic) (Clastic Sedimentary Rock (primarily composed of SiO2)) — sedimentary

Sandstone (clastic)

Clastic Sedimentary Rock (primarily composed of SiO2)

Sandstone (Quartzite-rich) (Clastic Sedimentary Rock (primarily SiO2)) — sedimentary

Sandstone (Quartzite-rich)

Clastic Sedimentary Rock (primarily SiO2)

Red Sandstone (Arenite (with Iron Oxide / Hematite), Formula: SiO2 (Quartz) + Fe2O3 (Hematite coating)) — sedimentary

Red Sandstone

Arenite (with Iron Oxide / Hematite), Formula: SiO2 (Quartz) + Fe2O3 (Hematite coating)

Aquamarine (Beryl (Be₃Al₂Si₆O₁₈)) — mineral

Aquamarine

Beryl (Be₃Al₂Si₆O₁₈)

Green Quartzite (Quartzite (SiO2)) — metamorphic

Green Quartzite

Quartzite (SiO2)

Milky Quartz (Quartz (Silicon Dioxide, SiO2)) — mineral

Milky Quartz

Quartz (Silicon Dioxide, SiO2)