Citrine (Heat-treated Amethyst)
Citrine Quartz (SiO2)
Category
Browse mineral (tectosilicate) specimens identified by the Rock Identifier community.
Citrine (Heat-treated Amethyst)
Citrine Quartz (SiO2)
Sodalite
Sodalite, Na8(Al6Si6O24)Cl2
Amazonite (Amazon Stone)
Tectosilicate Microcline (KAlSi3O8)
Sodalite
Sodalite - Na8(Al6Si6O24)Cl2
Sodalite
Sodalite (Na8Al6Si6O24Cl2)
Amazonite (with smoky quartz/feldspar inclusions)
K(AlSi3O8), Microcline (Tectosilicate)
Sodalite
Na8(Al6Si6O24)Cl2
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
Sodalite
Sodalite [Na8(Al6Si6O24)Cl2]
Amazonite (with smoky quartz/red jasper inclusions)
Tectosilicate - Microcline Feldspar (KAlSi3O8)
Amazonite
Tectosilicate (variety of Microcline), K(AlSi3O8)
Amethyst (Chevron or Dream Amethyst variety)
Tectosilicate Silicon Dioxide (SiO2) with iron impurities
Amazonite
K(AlSi3O8) - Lead-bearing Microcline (Tectosilicate)
Yellow Jasper
Tectosilicates (SiO2) with Goethite/Iron oxide inclusions
Amazonite
Amazonite (KAlSi3O8) - a variety of Microcline Feldspar
Sodalite
Sodalite (Na4Al3Si3O12Cl)
Amazonite
Amazonite (KAlSi3O8 - a variety of Microcline Feldspar)
Sodalite
Sodalite - Na8(Al6Si6O24)Cl2
Amazonite
Amazonite (KAlSi3O8)
Amazonite
Amazonite (KAlSi3O8, a variety of Microcline)
Amazonite
KAlSi3O8 (Potassium Feldspar, variety of Microcline)
Orthoclase Feldspar
KAlSi3O8 (Potassium Aluminum Silicate)
Orthoclase Feldspar (or K-Feldspar)
Orthoclase (KAlSi3O8)
Amazonite
KAlSi3O8 (Potassium Feldspar, variety of Microcline)
Lapis Lazuli
A metamorphic rock primarily composed of lazurite (Na,Ca)8[(S,SO4,Cl)2|(Al6Si6O24)], calcite (CaCO3), and pyrite (FeS2).
Amazonite (likely mixed with other feldspars/minerals)
Amazonite is a variety of Microcline, which is a tectosilicate mineral, formula KAISi3O8. The mixed beads could include other feldspars or quartz.
Lapis Lazuli
Tectosilicate (Na,Ca)8(AlSiO4)6(SO4,S,Cl,OH)2
Sandstone (with potential mineral staining/concretions)
Arenite (SiO2 based)
Epidote
Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)
Nephrite Jade
Nephrite
Banded Gneiss (River Rock/Pebble)
Gneiss (specifically a banded variety often found as a river rock)
Green Apatite on Albite
Fluorapatite [Ca5(PO4)3F] on Albite [Na(AlSi3O8)]
Epidote
Epidote - Ca2(Al2,Fe3+)3(SiO4)3(OH)
Synthetic Resin (Artificial Specimen)
Polyurethane or Polyester Resin
Basalt with Secondary Mineralization (Likely Zeolites or Calcite)
Aphanitic mafic volcanic rock with secondary mineral inclusions (e.g., CaAl2Si3O10·3H2O for Scolecite)
Granite
Phaneritic Plutonic Felsic Rock
Granite with Epidote
Granite, containing quartz, feldspar, and epidote
Potassium Feldspar (Orthoclase)
Orthoclase (KAlSi3O8)
Orthoclase Feldspar
Orthoclase (KAlSi3O8)
Schist
Schist (various mineralogical compositions including mica, chlorite, talc, etc.)
Banded Gneiss (Variety of Gneiss)
Gneiss (specifically, a variety exhibiting prominent banding; mineral composition can vary, but often contains quartz, feldspar, mica, and amphibole)
Fluorite
Calcium Fluoride (CaF2)