Osumilite in Granite Matrix
(K,Na)(Fe,Mg)2(Al,Fe)3(Si,Al)12O30
Category
Browse igneous or metamorphic specimens identified by the Rock Identifier community.
Osumilite in Granite Matrix
(K,Na)(Fe,Mg)2(Al,Fe)3(Si,Al)12O30
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
Epidote
Epidote Group (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))
Magnetite Sand (Black Sand)
Magnetite (Fe3O4)
Gneiss (River Cobble)
Metamorphic Gneiss
Unakite Epidote-Granite
Unakite (Epidotized Granite)
Ptygmatic Migmatite
Migmatite (consisting of Neosome and Paleosome fractions)
Quartz Vein in Host Rock
Silicon Dioxide (SiO2) vein cutting through host rock
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
White Quartz (Milky Quartz)
Quartz (Silicon Dioxide - SiO2)
Yellow Quartz (Citrine/Yellow Jasper mix)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Basalt (Weathered River Pebble)
Extrusive Igneous Rock
Greenish Feldspathic Rock / Epidote Granite (Unakite-type or Epidote-bearing rock)
Epidotized Metamorphic/Igneous Rock
Schist
Metamorphic rock (Schist)
Iolite (Cordierite)
Cordierite (Magnesium Aluminum Silicate), Mg2Al4Si5O18
Basalt Pebble
Extrusive Igneous Rock
Plagioclase Feldspar (specifically Albite/Oligoclase)
(Na,Ca)(Si,Al)4O8
Yellow Quartz Pebble
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Labradorite
(Ca,Na)(Al,Si)4O8 (Plagioclase Feldspar)
Quartz (Rose Quartz or Jasper variety)
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Blue Sapphire
Corundum (Al2O3)
Blue Aventurine
Quartz (SiO2) with inclusions
Agate
Silicon Dioxide (Chalcedony), SiO2
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Yellow Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Orange Quartz / Peach Aventurine
Silicon Dioxide (SiO2)
Magnetite / Lodestone
Magnetite (Fe3O4)
Pyrite
Iron Sulfide (FeS2)
Green Aventurine
Aventurine Quartz (SiO2 + Fuchsite inclusions)
Orange Calcite
Calcium Carbonate (CaCO3)
White Quartz
Silicon Dioxide (SiO2)
White Quartz
Silicon Dioxide (SiO2)
Raw Calcite
Calcium Carbonate (CaCO3)