Quartz (variety of colors)
SiO2 (Silicon Dioxide)
Mineral
Category
Mineralish (Variety Of Chalcedony)
Browse mineralish (variety of chalcedony) specimens identified by the Rock Identifier community.
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Moonstone (Variety of Orthoclase Feldspar)
KAlSi3O8 (Potassium Aluminum Silicate)
mineral
Amethyst (Variety of Quartz)
Silicon Dioxide (SiO2)
mineral
Amethyst (variety of Quartz)
SiO2 (Silicon Dioxide)
Mineral
Ruby (varieties of Corundum)
Aluminum oxide (Al2O3) with Chromium traces
mineral
Jadeite (variety of Jade)
Jadeite, NaAlSi₂O₆
metamorphic
Rose Quartz
Rose Quartz (SiO2)
Mineral
Smoky Quartz
SiO2 (Silicon Dioxide)
mineral
Quartz
Quartz (SiO₂)
Mineral
Pyrite
Pyrite (FeS2)
Mineral
Limonite (also known as Yellow Ochre or Brown Hematite)
Limonite (Hydrated iron oxide-hydroxide, FeO(OH)·nH2O)
Mineral
Kunzite (variety of Spodumene)
Lithium Aluminum Silicate (LiAlSi2O6)
mineral
Flint (variety of Chert)
Silicon Dioxide (SiO2)
sedimentary
Sunstone (variety of Feldspar)
Oligoclase Sunstone, Plagioclase Feldspar (Na,Ca)Al(Si,Al)Si2O8
Mineral
Amethyst (Variety of Quartz)
Silicon Dioxide (SiO2) with iron impurities
mineral
Rose Quartz
Rose Quartz (SiO₂)
Mineral
Tourmaline (likely Schorl)
Tourmaline Group Mineral (e.g., Schorl for black varieties); (Na,Ca)(Li,Mg,Fe,Mn,Al)3Al6(BO3)3Si6O18(OH)4
Mineral
Calcite
Calcite (CaCO₃)
Mineral
Serpentine
Serpentine group minerals (e.g., Antigorite, Chrysotile, Lizardite). Chemical formula: (Mg, Fe)₃Si₂O₅(OH)₄
Mineral, often found as a rock (metamorphic)
Chert (Flint)
Chert (microcrystalline quartz)
sedimentary
Yellow Jasper
Jasper, a microcrystalline variety of Quartz (SiO2) with iron inclusions
sedimentary
Banded Chert
Chert (a microcrystalline variety of quartz, SiO2 with minor impurities)
Sedimentary
Rose Quartz (tumbled)
Rose Quartz (variety of Quartz, chemical formula SiO₂)
Mineral
Quartz
SiO₂ (Silicon Dioxide)
Mineral
Peridot
Olivine ((Mg,Fe)2SiO4)
Mineral
Fluorite Bracelet (light green beads) and possibly Lavender Jadeite (purple bead)
Fluorite: CaF₂ (Calcium Fluoride); Jadeite: NaAlSi₂O₆ (Sodium Aluminum Silicate)
Mineral for Fluorite; Mineral/Rock for Jadeite (as it's often a rock composed primarily of jadeite mineral)
Demantoid Garnet on Matrix
Demantoid (variety of Andradite Garnet) - Ca3(Fe3+)2(SiO4)3
mineral
Peridot (Olivine)
Olivine ((Mg,Fe)2SiO4)
Mineral
Mookaite Jasper
Mookaite (variety of Chert/Jasper), Silicon Dioxide - SiO2
sedimentary
Unakite
Epidote-Feldspar rock (specifically, a variety of granite)
Metamorphic rock
Prasiolite and Quartz Crystal Cluster
Quartz (SiO2); Prasiolite is a variety of Quartz
mineral
Green Aventurine
Aventurine (a variety of Quartz, SiO2 with fuchsite inclusions)
Mineral
Chalcopyrite
Chalcopyrite (CuFeS2)
Mineral
Peridot (likely, given the color and bead form)
Olivine, variety Peridot (Mg,Fe)2SiO4
Mineral
Aquamarine
Aquamarine (Beryl variety); Be3Al2Si6O18
mineral
Quartz (likely a weathered/tumbled piece)
Quartz (SiO₂)
Mineral
Jasper (yellow/cream variety)
SiO₂ (Cryptocrystalline Quartz)
Sedimentary
Quartz
Silicon Dioxide (SiO2)
mineral
Green Aventurine and Clear Quartz
Green Aventurine (Silicon Dioxide - SiO2 with Fuchsite inclusions); Clear Quartz (Silicon Dioxide - SiO2)
Mineral
Smoky Quartz
SiO2 (Silicon Dioxide)
Mineral
Orthoclase Feldspar
KAlSi3O8 (Potassium Aluminum Silicate)
Mineral
Serpentinite (Serpentine Rock)
Primarily composed of serpentine group minerals, such as antigorite, chrysotile, and lizardite. Chemical formula for serpentine minerals is (Mg,Fe)3Si2O5(OH)4.
Metamorphic