Scheelite is a calcium tungstate mineral with the chemical formula CaWO4. It is an important ore of tungsten (wolfram). Scheelite is originally named after Swedish chemist Carl Wilhelm Scheele (1742–1786). Well-formed crystals are sought by collectors and are occasionally fashioned into gemstones when suitably free of flaws. Scheelite has been synthesized using the Czochralski process; the material produced may be used to imitate diamond, as a scintillator, or as a solid-state lasing medium. It was also used in radium paint in the same fashion as was zinc sulphide, and Thomas Edison invented a
In the Vinony graph
Within Vinony's link graph, 白钨矿 is referenced by 165 other articles, and connects out to Mohs scale of mineral hardness, relative density and Switzerland.
Vinony files it under Calcium minerals, Gemstones and Laser gain media.
Its subject is documented across 37 Wikipedia language editions.
Key facts
- Mineral.name
- Scheelite
- Mineral.category
- Tungstate mineral
- Mineral.boxbgcolor
- ee964b
- Mineral.image
- Scheelite-224167.jpg
- Mineral.imagesize
- 260px
- Mineral.formula
- CaWO4
- Mineral.IMAsymbol
- Sch
- Mineral.strunz
- 7.GA.05
- Mineral.system
- Tetragonal
- Mineral.class
- Dipyramidal (4/m) H-M symbol: (4/m)
- Mineral.symmetry
- I41/a
- Mineral.unit cell
- a = 5.2429(3), Å c = 11.3737(6) Å; Z = 4
- Mineral.color
- Colorless, white, gray, dark brown, brown, tan, pale yellow, yellow-orange, golden yellow, pale shades of orange, red, green, etc.; colorless in transmitted light and may be compositionally color zoned
- Mineral.habit
- Pseudo-octahedra, massive, columnar, granular
- Mineral.twinning
- Common, penetration and contact twins, composition plane {110} or {001}
- Mineral.cleavage
- On {101}, distinct; on {112}, interrupted; on {001}, indistinct
- Mineral.fracture
- Subconchoidal to uneven
- Mineral.tenacity
- Brittle
via Wikipedia infobox
Wikidata facts
- Subclass of
- phosphate mineral
- Named after
- Carl Wilhelm Scheele
- Image
- Scheelite MHNT.MIN.2004.0.88 (p).jpg
Show 8 more facts
- Nickel-Strunz 9th edition (updated 2009)
- 7.GA.05
- Commons category
- Scheelite
- chemical formula
- CaWO₄
- Nickel-Strunz '10th ed', review of (9th ed/ 2009 update)
- 7.GA.05
- streak color
- white
- crystal system
- tetragonal crystal system
- IMA Mineral Symbol
- Sch
- Strunz 8th edition (series ID, updated)
- VI/F.01
Sources (2)
via Wikidata · CC0
Article · 中文
白钨矿（英語：Scheelite）是一種鎢酸鈣化合物，化學式為CaWO4，是鎢的重要礦石。組織結構良好的晶體為收藏家所喜愛，並偶爾作為寶石之用。白鎢礦可經由化學合成方法，如柴可拉斯基法等制備，所得的結晶可用作、（scintillator）及固態的（Active laser medium）。
Abstract from DBpedia / Wikipedia · CC BY-SA