Gold in lgneous,Sedimentary, And Metamorphic RocksIgneous rocks contain as little as 0.2 and as much as 73 ppb. (parts per billion) . In metamorphic rocks the range of gold content is from 0.86 to. 22.4 ppb with an.metamorphic rocks have gold,Day 22, Igneous rocks associated with gold and Metamorphic Rocks .As we have seen, igneous or magmatic origin are in the magma, are the first to be formed. The gold deposits of pleasure have their origin in alluvium and these.
metamorphic rocks have gold