Amethyst (Chevron or Banded variety)
Silicon Dioxide with Iron impurities (SiO2)
Category
Browse mineral in metamorphic rock specimens identified by the Rock Identifier community.
Amethyst (Chevron or Banded variety)
Silicon Dioxide with Iron impurities (SiO2)
Amethyst
Amethyst (SiO2 with Iron impurities)
Banded Agate
Cryptocrystalline Quartz (SiO2)
Moonstone (specifically White Moonstone/Adularia)
Potassium aluminum silicate ((K,Na)AlSi3O8)
Citrine (Yellow Quartz)
Silicon Dioxide (SiO2)
Quartz (River Cobble)
Silicon Dioxide (SiO2)
Banded Agate
Cryptocrystalline Silica (SiO2)
Sunstone
Plagioclase feldspar (with Copper or Hematite inclusions)
Yellow Agate
Agate (Varietal form of Chalcedony/Quartz, SiO2)
Peach Moonstone (Feldspar variety)
Orthoclase Feldspar (KAlSi3O8) with inclusions
Milky Quartz Pebble
Silicon Dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO₂)
Smoky Quartz
Silicon Dioxide (SiO2)
Quartz (Iron-stained)
Silicon Dioxide (SiO2)
Cloudy Quartz / Quartz Tumble
Silicon Dioxide (SiO2)
Green Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite
Rough Green Sapphire (Corundum)
Corundum (Al2O3 - Aluminum Oxide with trace elements)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz (Milky/Gray variety)
Silicon Dioxide (SiO2)
Tiger's Eye
SiO2 (Quartz with inclusion of iron oxides)
Sandstone
Clastic sedimentary rock (primarily SiO2)
Mica-rich Sandstone or Micaceous Schist Weathering
Micaceous Schist (Muscovite-Quartz composition)
Green Aventurine (Quartz)
SiO2 (Silicon Dioxide with Fuchsite inclusions)
Lapis Lazuli (Simulated)
Lapis Lazuli (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2
Nuummite
Nuummite (mixture of Anthophyllite and Gedrite)
Sandstone (Quartzose Sandstone)
Arenite
Red Jasper (Polished)
Silicon Dioxide (SiO2) with Hematite inclusions
Sandstone
Arenite (primarily SiO2)
Sandstone
Arenite
Sandstone
Arenite (SiO2 with various cementing agents)
Quartz Geode
Silicon Dioxide (SiO2)
Sandstone
Clastic sedimentary rock (primarily SiO2)
Sandstone (with minor quartz and possible clay components)
Clastic Sedimentary Rock (SiO2 dominated)
Sandstone
Arenite (primarily SiO2)
Sandstone (Ferruginous)
Arenite (primarily SiO2 with Fe2O3 cement)
Sandstone
Clastic sedimentary rock (primarily SiO2)
Sandstone (Quartzose Sandstone)
Clastic sedimentary rock (primarily SiO2)
Sandstone (with potential iron-oxide weathering)
Arenite (SiO2 based)
Citrine Quartz
Silicon Dioxide (SiO2) with iron impurities
Almandine Garnet in Matrix
Almandine, Fe3Al2(SiO4)3