When was the Individual Stannary Developed at the Earliest?
矿
何时最早开采的?
When was the Individual Stannary Developed at the Earliest?
矿何时最早开采的?
The Da'ao greisen-type W-Sn deposit is located in the Jiuyishan multiple granitic body.
大坳云英岩蚀变体型钨矿产于九嶷山复式花岗杂岩体中。
Silicify or silicified rock is one more efficacious sign for exploring mine in Xikuangshan antimony deposit.
硅化/硅化岩石矿山锑矿的一种很有效的找矿标志。
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