Andalusite is a polymorph with two other minerals, Kyanite and Sillimanite.

红柱石属多晶型物，含蓝晶石和硅线石两种不同矿物。

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Andalusite is a polymorph with two other minerals, Kyanite and Sillimanite.

红柱石属多晶型物，含蓝晶石和硅线石两种不同矿物。

youdao