rhodizite

[′rōd·ə‚zīt]

(mineralogy)

CsAl₄Be₄B₁₁O₂₅(OH)₄ A white mineral composed of a basic borate of cesium, aluminum, and beryllium, occurring as isometric crystals.

References in periodicals archive ?

Other rarities occurring in the pegmatites of this area include microlite, hambergite and rhodizite (Antandrokomby is one of the world's richest sources of this mineral).

Jourmaline for breakfast a trip to Madagascar

From Ambalahe, Manapa, near Betafo, come very lustrous, striated, short-prismatic liddicoatite crystals with trigonal terminations, mostly around 3 cm but exceptionally to 12 cm, loose or on pegmatitic matrix; these crystals are a very dark greenish brown to black but have rich red internal highlights, and on a few of their surfaces rest sharp, lustrous, snow-white dodecahedral crystals of londonite (the cesium analog of rhodizite first described in 2001) to 3 mm.

Tucson show 2007

To add yet further spice, the sprinkling of pale ivory-white sparkling crystals on one side of the "sibirite" spray appears to be the extremely rare rhodizite, a characteristic associate of sibirite from Shaitansk, which is the co-type locality.

The Devonshire mineral collection of Chatsworth House: an 18th century survivor and its restoration

Lino explains that since this material has tested extremely high in rubidium, it may in fact be neither rhodizite nor londonite but a new species.

Munich Show 2004

At the booth I noticed Erica Pohl, the wonderful collector from Switzerland, looking at a very fine, unusual specimen of rhodizite from Madagascar.

Munich show 2003

The elbaite crystals reach 3 cm individually, and occur in floater groups of toenail to miniature size; what is more, grayish white, translucent dodecahedrons of rhodizite to 5 mm are sprinkled liberally on their surfaces, for a fetching white-on-black effect.

Tucson Show 2003. (What's New in Minerals)

Another whole shelf was full of large yellow crystals of what used to be called rhodizite, but is now recognized as the new mineral londonite (the cesium analog of rhodizite) from Mahaica, Madagascar.

Sainte-Marie-aux-Mines show 2002. (What's New in Minerals)

Relationship to other species: It is the Cs-dominant analogue of rhodizite, (K,Cs)[Al.sub.4][Be.sub.4][(B,Be).sub.12][O.sub.28].

Abstracts of new mineral descriptions

Londonite, a New Mineral: the Cs-dominant Analog of Rhodizite from Madagascar

Tucson Mineralogical Symposium: Minerals of Africa. (Abstracts of the 23rd Annual)

The Italians are heavily connected with mining in Madagascar and so numerous large and fine crystals of rhodizite were available, especially from Lino Caserini, and liddicoatites (some on matrix) from Enio Prato.

Bologna Show 2000

And everyone should be informed that many of the very large, very yellow and lustrous, very attractive crystals from Madagascar that heretofore have been called "rhodizite" have now been shown to be londonite, a new species which is the cesium analog of rhodizite, i.e.

What's New in Minerals

The Sarapulka and Shaitanka pegmatites are irregular thin veins containing rubellite and rhodizite in the west and green and blue aquamarines in the east.

ABATRACTS OF THE 21ST ANNUAL FM-TGMS-MSA MINERALOGICAL SYMPOSIUM THE MINERALS of BRAZIL

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