Tremolite from Khash District, Badakhshan, Afghanistan

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An impressive large lustrous and transparent double terminated loose crystal of tremolite. This is outstanding for the species and and incredibly large perfect crystal. In super condition. Collected in the 1980s. The Kuran Wa Munjan District in Badakhshan Province, Afghanistan, is home to the legendary Sar-e-Sang lapis lazuli mining complex, which boasts an active extraction history spanning over 6,000 years since the early Bronze Age and remains operational today on a seasonal basis. Geologically, the area is situated within the high-altitude Hindu Kush mountains, where ancient Neo-Archean to Paleoproterozoic metamorphic rocks, including high-grade marbles and calcareous sequences of the South Badakhshan Block, have undergone complex retrograde metamorphism and metasomatism. These processes produced world-famous gemstone-bearing veins dominated by deep-blue lazurite alongside intimate associations of calcite, dolomite, pyrite flecks, and diverse silicate minerals.