ore indicator

• 找矿标志

ore indicator的用法和样例：

例句

1. The serpentinized marble is the main ore guide.
   蛇纹石化大理岩是主要找矿标志。
2. The ore-hunting indicator is of calcite-potassium feldspar veins containing pyritohedron pyrite.
   直接找矿标志为含五角十二面体黄铁矿铁方解石钾长石脉。