竹叶石为砾屑灰岩经风化与岩溶作用而形成的块石。
Bamboo stone for calcirudite by weathering and karstification and the formation of the stone.
镁铝榴石形成于滇东南晚第三纪岩简状的玄武质次火山角砾岩中，角砾岩成分复杂，其中包含有镁铝榴石和铬透辉石等可作宝石材料利用的角砾和晶屑。
The rubbles and crpetals of prrope and chrome-diopsidewhich can be used as gem materials are found in the breccias whose component is very complex.
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