Davisite Explained

Davisite
Formula:	CaScAlSiO6

Davisite is an exceedingly rare mineral of the pyroxene group, with formula CaScAlSiO₆. It is the scandium-dominant member.^{[1] [2]} It stands for scandium-analogue of other pyroxene-group members, esseneite, grossmanite and kushiroite. Davisite is one of scarce minerals containing essential scandium.^[3]

Named after Andrew M. Davis, American meteoriticist and professor of astronomy and geoscience at the University of Chicago.

Based on a synthesized sample, the mineral likely crystallizes in the monoclinic crystal system with space group C2/c.^[4]

Notes and References

1. Ma, C., and Rossmann, G.R., 2009: Davisite, CaScAlSiO₆, a new pyroxene from the Allende meteorite
2. Mindat, http://www.mindat.org/min-38829.html
3. http://www.mindat.org/element/Scandium Scandium, The mineralogy of Scandium - Mindat. org
4. Ohashi . H. . Ii . N. . Journal of the Japanese Association of Mineralogists, Petrologists and Economic Geologists . 73 . 1978 . 267–273 . Structure of calcium scandium aluminum silicate (CaScAlSiO6)-pyroxene. 10.2465/ganko1941.73.267 . free .