Greisen is closely connected with schorl rock both in its mineralogical composition and in its mode of origin. |
In Pemali, tin deposits exist as a stockwork and greisen in granite and turmaline casiterite veins which run parallel. |
At the Redskin mine, molybdenite is found in small cylindrical greisen pipes in the Redskin Granite. |
Eventually we reached the site, a few trenches along veins of greisen. |
Kelly Gregg, Adam Terry, Nick Greisen and Yamon Fugurs are listed as questionable. |