Scheelite
Species
Uncommon · CaWO₄
Calcium tungstate and an important ore of tungsten. Displays intense blue-white fluorescence under shortwave ultraviolet light, used to locate ore bodies in the field. Forms in skarn deposits and high-temperature hydrothermal veins.
Identity
- Formula
- CaWO₄
- Chemical class
- Tungstate
- Also known as
- Calcium tungstate
- Ore of
- Tungsten
Crystallography
- Crystal system
- Tetragonal
- Habits
- Pyramidal, Granular, Massive
- Fracture
- Subconchoidal
Physical properties
- Mohs hardness
- 5
- Density
- 6.11 g/cm³
- Luster
- Adamantine, Vitreous
- Colors
- colorless, white, yellow, orange, brown
- Streak
- white
- Transparency
- Transparent, Translucent
Geology
- Origins
- Metamorphic, Hydrothermal
- Host rocks
- Granite, Marble
- Associated minerals
- Wolframite, Cassiterite, Quartz, Fluorite
- Found in
- Hydrothermal vein (lode), Skarn
- Geography
- China, Russia, South Korea, USA, Namibia
Classification
- Rarity
- Uncommon
- Gem quality
- No
Sources
- M. Pasero and others, IMA Commission on New Minerals, Nomenclature and Classification, The New IMA List of Minerals, updated September 2026. International Mineralogical Association (CNMNC), 2026.
- J. W. Anthony, R. A. Bideaux, K. W. Bladh, M. C. Nichols, Scheelite. Mineral Data Publishing, Handbook of Mineralogy, 2001.
- Scheelite. Gemdat.org (Hudson Institute of Mineralogy).
- Scheelite. Wikipédia, l'encyclopédie libre (fr).
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