Iceland Spar Occurrence

摘要

In the Yifeng County, Jiangxi Province, an iceland spar occurrence was discovered recently. Itis associated with limestone, and the calcite is discovered therein also. Specialists suggested that thereserve of iceland spar is considerable. In the deposit of iceland spar the minor crystal is tens gramsby weight, and the large one is hundreds kilograms by weight. The crystals are typicalparallelepiped, transparent and with fine quality. The crystals exhibit uinque double refraction.