Green Aventurine and Clear Quartz
Aventurine (variety of Quartz - SiO2) and Quartz (SiO2)
Mineral
Category
Mineral (Specifically A Variety Of Chalcedony, Which Is A Microcrystalline Quartz)
Browse mineral (specifically a variety of chalcedony, which is a microcrystalline quartz) specimens identified by the Rock Identifier community.
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Sandstone (lithic/greywacke variety)
Arenite (composed primarily of SiO2 with various lithic fragments)
sedimentary
Moonstone
Orthoclase (KAlSi3O8), specifically the variety showing adularescence
mineral
Black Onyx
Silicon Dioxide (SiO2)
mineral
Yellow Jasper
Silicon Dioxide (SiO2) - Impure Cryptocrystalline Quartz
sedimentary
Basalt with Mineral Vein (Cobble)
Basalt (with likely Quartz/Calcite vein)
Igneous
Jasper
Jasper (Silicon Dioxide, SiO2)
sedimentary
Quartz
Quartz (Silicon Dioxide - SiO2)
Mineral
Milky Quartz (Common Quartz)
Quartz (Silicon Dioxide, SiO2)
mineral
Quartz Pebble (likely Chalcedony or Quartzite)
Silicon Dioxide (SiO2)
mineral
Jasper (with Agate/Chalcedony inclusions)
Silicon Dioxide (SiO2)
sedimentary
Black Jasper (Etched)
Silicon Dioxide (SiO2) with impurities
mineral
Banded Calcite (Mexican Onyx)
Calcite (CaCO3)
mineral
Banded Calcite (often sold as Onyx Marble)
Calcium Carbonate (CaCO3)
mineral
Jasper
Agate/Jasper (Microcrystalline Quartz, SiO2)
sedimentary
Green Aventurine
Silicon Dioxide (SiO2) with Fuchsite inclusions
Mineral (variety of Quartz)
Quartz Crystal
Silicon Dioxide (SiO2)
mineral
Quartz (specifically Citrine or Iron-stained Quartz)
Silicon Dioxide (SiO2)
mineral
Gastly (Trick or Trade Halloween Series)
Cellulose-carbonaceous composite (Lignocellulose laminated with pigmentary polymers)
Mineral (Synthetic - Paper and Ink Polymorph)
Agate Slices and Clear Quartz Points
Agate (SiO2 Chalcedony) and Clear Quartz (SiO2 Crystalline)
mineral
Purple Chalcedony (likely dyed Agate)
Silicon Dioxide (SiO2)
mineral
Banded Chert (Agate/Jasper blend)
Microcrystalline Quartz (SiO2)
sedimentary
Snakeskin Agate
Agate (Cryptocrystalline Quartz, SiO2)
mineral
Jasper
Silicon dioxide (SiO2) with impurities
sedimentary
Chert (Yellow Jasper variant)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
sedimentary
Petrified Wood
Silicified wood (Quartz/Chalcedony/Opal replacing organic matter)
sedimentary
Ferruginous Sandstone
Clastic sedimentary rock (SiO2 with Fe2O3/FeO(OH) cement)
sedimentary
Yellow Jasper (Chert)
Silicon Dioxide (SiO2) with iron inclusions
sedimentary
Amazonite
Microcline (KAlSi3O8)
mineral
Petrified Wood
Silicified Wood (SiO2)
metamorphic
Specular Hematite (Specularite)
Hematite (Iron(III) oxide) - Fe2O3
mineral
Green Aventurine
Silicon dioxide (SiO2) with fuchsite inclusions
mineral
Aventurine
Quartzite with inclusions (SiO2 containing Fuchsite chrome mica)
metamorphic
Yellow Calcite
Calcium Carbonate (CaCO3)
mineral
Puddingstone
Conglomerate (specifically a type of jasper conglomerate or quartz conglomerate)
Sedimentary
Orange Quartz (Citrine Quartz variety)
Silicon Dioxide (SiO2)
mineral
Petrified Wood
Silicified Wood (SiO2 - Quartz/Chalcedony replacement)
Mineral / Fossil
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Mookaite Jasper
Siliceous (chert) sedimentary rock, a form of Jasper
Sedimentary
Ferruginous Quartz
Silicon Dioxide (SiO2) with Hematite/Limonite impurities
mineral