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斯威士兰的海洛克石棉矿于1929年开始兴建。现年产35,000吨,约占世界年产量的0.5%。每月采出矿石70,000至75,000吨,得到3,000吨石棉纤维。地质条件海洛克的温石棉矿体位于剪切蛇纹石带的中央部分。东西走向,倾向基本向南55°。矿体已连续沿走向开采了1,400米,矿体厚约30米。矿体东翼,大部分纤维较脆,开采不经济。矿体西部,蛇纹石一直延伸到特兰斯瓦县姆索里石棉矿,但在靠近海洛克矿边界,蛇纹石带变窄,并断裂,纤维很不发
The Haylock asbestos mine in Swaziland began construction in 1929. Now with an annual output of 35,000 tons, accounting for about 0.5% of the world’s annual output. 70,000 to 75,000 tons of ore are mined monthly, resulting in 3,000 tons of asbestos fibers. Geological conditions The seamosite chrysotile body is located in the central part of the sheared serpentine zone. East-west trend, the basic tendency of 55 ° south. The ore body has been continuously mining along the direction of 1,400 meters, ore body thickness of about 30 meters. East wing of the ore body, most of the fiber is more brittle, mining uneconomical. In the western part of the ore body, the serpentine extends to the asbestos mine at Mussoorie in Transnsa County, but the serpentine zone narrows and ruptures near the border with the Hailuoke Mine, and the fiber is scarce