Green Aventurine
Silicon Dioxide (SiO2) with Fuchsite inclusions
Category
Browse metamorphic or igneous with mineral inclusion specimens identified by the Rock Identifier community.
Green Aventurine
Silicon Dioxide (SiO2) with Fuchsite inclusions
Basalt with Quartz Vein
Aphanitic Mafic Igneous Rock with Silicon Dioxide (SiO2) inclusion
Quartz Mineral
Silicon Dioxide (SiO2)
Blue Quartz (Dumortierite Quartz)
Silicon Dioxide (SiO2) with Dumortierite inclusion [Al7BO3(SiO4)3O3]
Milky Quartz with Iron Inclusions
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Basalt (Amygdaloidal)
Amygdaloidal Basalt
Aquamarine (Beryl) Beads
Beryllium aluminum silicate (Be3Al2Si6O18)
Biotite Schist (with Garnet and Pyrite)
K(Mg,Fe)3AlSi3O10(OH,F)2 (Biotite focus)
Quartz-Tourmaline Pebble
Quartz with Tourmaline inclusions
Basalt with Peridotite Inclusion
Mafic Volcanic Rock (Extrusive Igneous) with Ultramafic Xenolith
Milky Quartz
Silicon Dioxide (SiO2)
Tumbled pale quartz (likely milky quartz)
Quartz, silicon dioxide (SiO₂)
Iron-stained quartz, possibly smoky quartz
Quartz (SiO₂), with reddish-brown iron-oxide staining; exact variety is uncertain from the photo
Green Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite
Moonstone (with Tourmaline/Mica)
Orthoclase/Albite Feldspar (KAlSi3O8 / NaAlSi3O8)
Quartz with Iron Stains
Silicon Dioxide (SiO2) with FeOx inclusions
Granite with Pyrite Inclusion
Granite (felsic intrusive igneous rock) with Iron Sulfide (FeS2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Yellow Quartz (Citrine Quartz / Milky Quartz)
Silicon Dioxide (SiO2)
Rounded granite or granitic gneiss pebble
Granite; mainly quartz, feldspar, and mica (exact identification is uncertain from the photograph)
Banded Gneiss
Gneiss (Metamorphic Rock)
Small tumbled brown mineral specimen
Likely quartz variety or iron-stained feldspar; exact identification is uncertain from the image
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Crystalline Silicon Dioxide (SiO2)
Quartz Geode
Quartz (SiO2) within a geode structure
Specular Hematite (Specularite)
Iron(III) oxide (Fe2O3)
Milky Quartz
Crystalline Silicon Dioxide (SiO2)
Mahogany Obsidian
Obsidian (Volcanic Glass) with Hematite/Magnetite inclusions
Milky Quartz
Silicon Dioxide (SiO2)
Yellow chalcedony or quartz fragment
Microcrystalline quartz, SiO₂ (tentative; possibly iron-stained chalcedony)
White quartz bead bracelet (likely milky quartz)
Quartz, silicon dioxide (SiO₂), usually microcrystalline or cloudy crystalline quartz
Quartz Pebble
Silicon Dioxide (SiO2)
Milky Quartz Pebble
Silicon Dioxide (SiO2)
Milky Quartz with Iron Staining
Silicon Dioxide (SiO2)
Milky Quartz (with potential inclusion of feldspar)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
White quartz-rich rock, possibly milky quartz
Quartz (SiO₂), likely massive milky quartz; identification is uncertain from the image
Quartz in Matrix (or Quartz Vein Rock)
Silicon Dioxide (SiO2) with host rock
Milky Quartz with Chlorite/Amphibite Inclusions
Silicon Dioxide (SiO2) with various mineral inclusions
Milky quartz
Quartz, silicon dioxide (SiO₂)