Left to right, sodalite, lazurite, and reverse of sample ...
Description: Left to right, sodalite, lazurite, and reverse of sample discussed here, all from Ladjuar Medam, Badakhshan, Afghanistan. 1 - Under halogen lamp 2 - Under UVA Sodalite turns to dark orange and some small zones of matrix and between crystals have a whitish shine which could be a feldspar. Central lazurite is inert while attached phlogopite shines in bright orange. On the discussed specimen supposed anorthite looks bluish white and appear a pale orange fluorescence that could be white sodalite/hackmanite. 3 - Under UVC Red shines are calcite. Central lazurite seems have a slight blue fluorescence (as mentioned in papers) and phlogopite shines yellowish white. There is some more brights that I hesitate to interpret...