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Londonite ct.1.54



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Londonite ct.1.54

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Londonite Is a Potassium Cesium Beryllium Aluminium Borate with formula (Cs,K,Rb) Al4 Be4 (B,Be)12 O28, Is a rare gem with high hardness of 8 from the Mohs scale; it is found mainly in Antandrokomby, Ampanivana, Antsongombato ,Madagascar; like this stone here, and in a few place in the Ural mountains. It is very similar to Rhodizite. It looks clean at naked aye ,but at the loupe there are some small inclusions. Very high luster . A rare gem, Size:7.5x7.5x4.9 mm. Weight: 1.54 ct. CODE#1864