manandonite

manandonite

[mə′nan·də‚nīt]
(mineralogy)
Li4 Al14B4Si6O29(OH)24 A white mineral composed of basic borosilicate of lithium and aluminum.
References in periodicals archive ?
The Sahatany Valley pegmatites are also the type localities for a number of mineralogical rarities such as londonite, manandonite and bityite (Antandrokomby pegmatite) and behierite (Manjaka pegmatite).
Other important places that have been worked recently are Antandrokomby (producing rhodizite, manandonite and beryl), Antanetinilapa (worked for gems mainly in the alluvium downhill from the pegmatite), Ampatsikahitra (producing spessartite, tourmaline and beryl) and Antokambohitra (producing poor-quality gems and schorl).
Larry Venezia (115 Coleridge St., East Boston, MA 02128) has recently obtained a lot of lustrous, gemmy, equant crystals of colorless orthoclase from South Betroka, and a new supply of manandonite is available from KARP Minerals.