Star quartz asterism caused by sillimanite

Four Treasures Reference Database

Record No. 29924

Journal Article

Woensdregt, C.F., Weibel, M. and Wessicken, R. (1980) Star quartz asterism caused by sillimanite. Schweizerische Mineralogische und Petrographische Mitteilungen, Vol. 60, No. 2/3, pp. 129–132.

Sinkankas/Born No.: NIS/NIB | not seen

gems, Ceylon, Sri Lanka, quartz, asterism, sillimanite, phenomena

The asterism seen in some quartz may be due to needles of sillimanite and not rutile.