Milky Quartz
Quartz (Silicon Dioxide - SiO2)
Category
Browse igneous, sedimentary, and metamorphic mix specimens identified by the Rock Identifier community.
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
Black Tourmaline
Schorl (Sodium Iron Aluminum Borosilicate Hydroxide)
Citrine Quartz (Yellow Quartz)
Silicon Dioxide (SiO2) with iron impurities
Smoky Quartz
Silicon Dioxide (SiO2)
Smoky Quartz
Smoky Quartz (Silicon Dioxide, SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Almandine Garnet & Tumbled Citrine Quartz
Fe3Al2(SiO4)3 (Garnet) and SiO2 (Quartz)
Labradorite
(Ca,Na)(Al,Si)4O8
Citrine
Silicon dioxide (SiO2)
Yellow Quartz (Citrine or Iron-Stained Quartz)
Silicon Dioxide (SiO2)
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
Garnet (specifically Almandine or Pyrope)
Almandine: Fe3Al2(SiO4)3 or Pyrope: Mg3Al2(SiO4)3
Green Aventurine
Silicon Dioxide (Quartz with Fuchsite inclusions), SiO2 + K(Al,Cr)2AlSi3O10(OH)2
Orthoclase Feldspar
Orthoclase (KAlSi3O8)
Smoky Quartz
Silicon Dioxide (SiO2)
Aventurine
Quartz (SiO2) with inclusions of Fuchsite
Magnetite (likely in Hematite or Ironstone)
Magnetite (Fe3O4)
Milky Quartz Pebble
Silicon Dioxide (SiO2)
Rainbow Moonstone
White Labradorite (formula: (Na,Ca)(Al,Si)4O8)
Milky Quartz
Crystalline Silicon Dioxide (SiO2)
Blue Sapphire
Corundum (Al2O3 with trace Titanium and Iron)
Smoky Quartz
Smoky Quartz (Silicon Dioxide - SiO2)
Moonstone (Blue Flash)
Potassium Aluminum Silicate (KAlSi3O8), a variety of Orthoclase Feldspar
Smoky Quartz
Silicon Dioxide (SiO2)
Orthoclase Feldspar (Twinning Specimen)
Orthoclase (KAlSi3O8)
Citrine Quartz (likely heat-treated)
Silicon Dioxide (SiO2)
Citrine
Silicon Dioxide (SiO2) with iron impurities
Moonstone
Orthoclase (Potassium Aluminum Silicate, KAlSi3O8)
Rainbow Moonstone with Black Tourmaline
White Labradorite (Feldspar variety, (Na,Ca)(Al,Si)4O8) with Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)
Citrine Quartz
Silicon Dioxide (SiO2) with iron impurities
Citrine Quartz
Silicon Dioxide (SiO2) with iron impurities
Smoky Quartz
Silicon Dioxide (SiO2)
Chalcopyrite
Copper Iron Sulfide (CuFeS2)
Quartz with inclusions (likely Tourmaline or Biotite)
Silicon Dioxide (SiO2)
Rough Citrine Quartz
Silicon Dioxide (SiO2) with ferric iron impurities
Orthoclase Feldspar
Orthoclase (KAlSi3O8)
Garnet
Almandine (Fe3Al2(SiO4)3)
Mixed Gemstone Beaded Jewelry
Various minerals (e.g., Quartz varieties like Rose Quartz, Amethyst; Peridot; Garnet; etc.)
Epidote
Epidote (formula: Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))
Jasper with Hematite Inclusions
Silicon Dioxide (SiO2) with Ferric Oxide (Fe2O3)
Orange Quartz (Citrine Quartz)
Silicon Dioxide (SiO2) with iron impurities
Green Aventurine
Aventurine Quartz (SiO2 with fuchsite inclusions)