Bulochi, Drot Valley, Astore District, Gilgit-Baltistan, Pakistan

The pegmatites of the Shingus-Bulochi field commonly have peripheral fine-grained granite or alpite margins and coarse-grained central areas with vugs and miarolitic cavities from 5 cm to 1 m across. Transparent pale-blue gem-quality crystals of beryl, accompanied by euhedral feldspar, quartz, schorl, and mica are found in cavities and may form part of the pegmatite matrix.

In some Bulochi pegmatites, colourless topaz, green and brown tourmaline, goshenite, and morganite as well as lepidolite and spodumene occur sporadically.

Ref: E.Ya. Kievlenko, Geology of gems, 2003, p. 110

Gemstone List

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