PetalitePalelni mine, Khetchel village, Molo quarter, Momeik Township, Kyaukme District, Shan State, Burma
Photo: Rob Lavinsky The Palelni mine is a beryllium rich pegmatite area that has intrude in a peridotite body. The initial discovery was around 1993 and the production of gemquality material was sporadic: The main product are the locally called "mushroom" rubellite tourmalines. These fibrous tourmaline have usualy a schorl seed and then a mushroom-like termination area more or less developed is possible. Another type of rubellite is present under botryodal shape. These tourmalines are associated with quartz, K-feldspar, beryl (aquamarine and morganite) and also petalite, phenakite and hambergite.
Note: "mushroom" tourmalines also occur at the Kat Chay mine (see there).
References
- Kyi et al. (2005): Aust. Gemmol. 22, 303-309.
- Andreas Ertl, John M. Hughes, Stefan Prowatke, Thomas Ludwig, Franz Brandstätter, Wilfried Körner, and M. Darby Dyar (2007): Tetrahedrally coordinated boron in Li-bearing olenite from “mushroom” tourmaline from Momeik, Myanmar. Can. Mineral. 45, 891-899.
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