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澳大利亚东部的金刚石产在显生宙基岩之上的冲积物中 ,成因不明 ,既没有已知的金伯利岩或钾镁煌斑岩岩筒 ,也没有出现与金刚石共生的常见指示矿物。新南威尔士的Ｗｅｌｌｉｎｇｔｏｎ、Ｂｉｎｇａｒ、Ｃｏｐｅｔｏｎ和ＡｉｒｌｙＭｏｕｎｔａｉｎ冲积型金刚石形成两种不同的类
The origin of the diamonds in the eastern part of Australia is unknown in the alluvial deposits above the basement of the Phanerozoic. There is neither known kimberlite or potash-marbled porphyry rocks nor the commonly-indicated minerals associated with diamonds. Wellington, Bingar, Copeton and AirlyMountain alluvial diamonds in New South Wales form two distinct classes