Changes
no edit summary
Betroka is a town and region of about 112 km² with an approximate population of 12,000. The town lies on the N13 national route in the [[Tulear]] region of southern Madagascar. A small airfield suitable only for light aircraft is located close to the town. The area is rich in minerals and gemstones.
<googlemap version="0.9" lat="-23.267566" lon="46.097131" zoom="14" scale="yes" controls="large">
</googlemap>
The area is part of the Betroka-Beraketa shear belt, a tectonic structure rich in minerals and gemstones. Deposit here have produced some of the finest color kornerupine stones, an increasing popular gemstone, which in the spiritual world is considered a teaching and communication stone, thought to stabilise emotional swings of manic-depressives and assists seeing through false agreements in one's current reality.... Other minerals in the area include plagioclase gneisses with two-pyroxenes, leptinitic gneiss with garnet, sillimanite and cordierite, quartzites, metapelites with cordierite-orthopyroxene-garnet-plagioclase, with spinel and sapphirine, calc silicate.
* [http://www.freilichminerals.com/?page=shop/flypage&product_id=605&CLSN_2683=1257884079268353aec789b4c1f5b02e http://www.freilichminerals.com]
* http://www.johnbetts-fineminerals.com/jhbnyc/mineralmuseum/gallery.php?init=&loc=Madagascar
* http://www.findyourfate.com/gemology/gemstones/Kornerupine.html