Hematite
Iron(III) oxide (Fe2O3)
mineral
Category
Man Made Object (Simulant)
Browse man made object (simulant) specimens identified by the Rock Identifier community.
Learn about Man Made Object (Simulant) in the encyclopedia
View all →
Agate
Silicon Dioxide (Chalcedony), SiO2
sedimentary
Jasper
Microcrystalline Quartz (SiO2)
sedimentary
Rose Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Petrified Wood
Silicified Wood (primarily quartz/chalcedony replacing organic wood structures, SiO2)
fossil
Agate
Silicon Dioxide (Chalcedony), SiO2
sedimentary
Agate
Silicon Dioxide (Chalcedony), SiO2
sedimentary
Aventurine
Quartz (SiO2) with fuchsite inclusions
mineral
Polished carnelian (reddish-brown chalcedony)
Carnelian, a microcrystalline variety of quartz (SiO₂)
gemstone
Green aventurine (likely)
Quartz variety; silicon dioxide (SiO₂) with green fuchsite mica inclusions
mineral
Epidote
Ca2(Al, Fe)3(SiO4)3(OH)
mineral
Unakite
Altered Granite (Granitic Metamorphic Rock)
metamorphic
Agate
Silicon Dioxide (Chalcedony), SiO2
sedimentary
Petrified Wood
Silicified Wood (SiO2)
fossil
Agate
Silicon dioxide (Chalcedony), SiO2
sedimentary
Agate
Chalcedony (SiO2)
sedimentary
Petoskey Stone
Hexagonaria percarinata
fossil
Serpentine
(Mg,Fe)3Si2O5(OH)4
metamorphic
Agate
Silicon dioxide (Chalcedony), SiO2
sedimentary
Fluorite
Calcium Fluoride (CaF2)
mineral
Red Jasper
SiO2 (Microcrystalline Quartz)
sedimentary
Tiger's Eye
Silicon Dioxide (SiO2) - Pseudomorph of Quartz after Crocidolite
mineral
Agate (Chalcedony)
Silicon Dioxide (SiO2)
mineral
Tiger's Eye
Silicified Crocidolite Pseudomorph (SiO2 with iron oxides)
gemstone
Amber
Succinite (Fossilized Tree Resin)
gemstone
Jasper
Chalcedony (SiO2)
mineral
Green Calcite
Calcite (CaCO3)
mineral
Red Jasper
SiO2, Chalcedony with iron inclusions
mineral
Green Fluorite (Botryoidal/Massive)
Calcium Fluoride (CaF2)
mineral
White Nephrite Jade
Nephrite (Ca2(Mg, Fe)5Si8O22(OH)2)
metamorphic
Yellow Jasper
Silicon Dioxide (SiO2)
mineral
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
mineral
Pink Thulite
Thulite (Ca2Al3(SiO4)3(OH)) - Pink Zoisite
Mineral
Rose Quartz
Rose Quartz (SiO2 - Silicon Dioxide with trace amounts of titanium, iron, or manganese)
mineral
Satin Spar Selenite
Gypsum (CaSO4·2H2O)
mineral
Blue Chalcedony
Silicon Dioxide (SiO2)
mineral
Soapstone
Steatite
metamorphic
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
mineral
Peridot
Olivine ((Mg,Fe)2SiO4)
mineral
Jasper (Yellow/Brown variety)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
sedimentary
Red Quartz (Hematoid Quartz)
Silicon Dioxide with Hematite inclusions (SiO2 + Fe2O3)
mineral