If I must say so myself,
there has been a lot of educational material on this thread As I have been trying to educate myself I have posted what I have come across. I suggest if you are interested, that you read the previous post through a few times and then reread some of the other posts and things should start to come clear.
For instance:
Message 19087788
The incredible story of Chuck Fipke and Canadian Diamonds still amazes me
I repeat the last paragraph of the previous post:
<Clearly, you cannot find diamond deposits by looking for diamonds; they are too rare. Instead, you must look for surrogates, secret signs. The most useful are other rare heavy minerals inhabiting kimberlite in quantities 100,00 times greater -variously called diamond indicators, pathfinders, satellites, captives, or slaves. Bleeding from kimberlite in sand- to BB-size grains, the best indicators are certain rare blood -red pyrope garnets, pea-green chrome diopsides, and shiny black ilmenites. They may travel dozens or hundreds of miles before settling in sandbars, eskers, or beaches. Four or five grains culled from among billions may start the trail.>
Message 19063437 |
