淡在有无中的是水中清晰可数的石砾。
Pale in the there is no clear in the number of stone gravel.
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.
巨砾，圆石：在地表上或埋在土壤中的大而圆的岩石块些美国现代作曲家。
Boulder: also bowlder, a large rounded mass of rock lying on the surface of the ground or embedded in the soil.
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