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Londonite
Londonite
14
listings
45
in gallery
Market data
About Londonite
Formula
(Cs,K,Rb)Al
4
Be
4
(B,Be)
12
O
28
Mineral guide
Learn about Londonite
Londonite — cesium-dominant borate with sharp trapezohedra, colorless to pale lemon, a rare mineral from Madagascar and Afghanistan prized by collectors.