thortveitite
Sign in to saveThortveitite is a rare mineral consisting of scandium yttrium silicate (Sc,Y)2Si2O7. It is the most widespread scandium mineral, but natural thortveitite is not widely exploited as a source of scandium metal. Most scandium is derived from mine tailings, which can include thortveitite. Thortveitite mining in the United States ceased in 1969.
Key facts
- Mineral.name
- Thortveitite
- Mineral.image
- Thortveitite-ea14a.jpg
- Mineral.caption
- Thortveitite
- Mineral.formula
- (Sc,Y)2Si2O7
- Mineral.IMAsymbol
- Tvt
- Mineral.strunz
- 9.BC.05
- Mineral.system
- Monoclinic
- Mineral.class
- Prismatic (2/m) (same H-M symbol)
- Mineral.symmetry
- C2/m
- Mineral.mohs
- 5–6
- Mineral.luster
- vitreous
- Mineral.streak
- gray
- Mineral.gravity
- 3.3–3.8
via Wikipedia infobox
Wikidata facts
- Image
- Thortveitite-ea14a.jpg
Show 6 more facts
- chemical formula
- Sc₂Si₂O₇
- Commons category
- Thortveitite
- Nickel-Strunz '10th ed', review of (9th ed/ 2009 update)
- 9.BC.05
- Nickel-Strunz 9th edition (updated 2009)
- 9.BC.05
- IMA Mineral Symbol
- Tvt
- Strunz 8th edition (series ID, updated)
- VIII/B.01
Sources (1)
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- References
Thortveitite is a rare mineral consisting of scandium yttrium silicate (Sc,Y)2Si2O7. It is the most widespread scandium mineral, but natural thortveitite is not widely exploited as a source of scandium metal. Most scandium is derived from mine tailings, which can include thortveitite. Thortveitite mining in the United States ceased in 1969.
Occurrence is in granitic pegmatites. It was named after Olaus Thortveit, a Norwegian engineer. It is grayish-green, black or gray in color.