Magnetite Sand (Black Sand)
Magnetite (Fe3O4)
mineral
Category
Metamorphic Or Igneous
Browse metamorphic or igneous specimens identified by the Rock Identifier community.
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Gneiss
Metamorphic Gneiss
metamorphic
Epidote
Epidote Group (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))
metamorphic
Gneiss
Metamorphic Foliated Gneiss
metamorphic
Gneiss
Gneiss (Metamorphic Rock)
metamorphic
Banded Gneiss
Gneiss (Metamorphic Rock)
metamorphic
Foliated Metamorphic Rock (likely Gneiss or Schist)
Gneissic Metamorphic Rock
metamorphic
Iolite (Cordierite)
Cordierite (Magnesium Aluminum Silicate), Mg2Al4Si5O18
Mineral
Milky and Ferruginous Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
White Quartz (Milky Quartz)
Quartz (Silicon Dioxide - SiO2)
mineral
Milky Quartz with Iron Staining
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Plagioclase Feldspar (specifically Albite/Oligoclase)
(Na,Ca)(Si,Al)4O8
mineral
Magnetite
Magnetite (Fe3O4)
mineral
Small rounded stone or mineral fragment
Indeterminate; likely a common quartz- or feldspar-bearing silicate fragment
mineral
Black Tourmaline
Schorl (NaFe2+3Al6(Si6O18)(BO3)3(OH)4)
mineral
Yellow Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Labradorite
(Ca,Na)(Al,Si)4O8 (Plagioclase Feldspar)
mineral
Quartz (Rose Quartz or Jasper variety)
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Blue Quartz
Silicon Dioxide (SiO2) with inclusions
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Yellow Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Orange Quartz / Peach Aventurine
Silicon Dioxide (SiO2)
mineral
Quartz Pebble (with Feldspar/Mica)
Granitic Quartz / SiO2 with KAlSi3O8
igneous
Magnetite / Lodestone
Magnetite (Fe3O4)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Green Aventurine
Aventurine Quartz (SiO2 + Fuchsite inclusions)
mineral
Citrine
Silicon Dioxide (SiO2) with ferric iron impurities
gemstone
Magnetite / Hematite mix
Magnetite (Fe3O4) and Hematite (Fe2O3)
mineral
White Quartz
Silicon Dioxide (SiO2)
mineral
White Quartz
Silicon Dioxide (SiO2)
mineral
Pyrite-bearing Rock
Iron Sulfide (FeS2) associated with host rock
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral