指与有关天然刚玉对比，具有基本相同的物理、光学及化学性能的人造材料。
It refers to artificial material with the basically the same physical, optical and chemical performances as natural boule.
本文主要介绍该矿床的刚玉形态特征、物理性质、晶体结构、包裹体特征及矿床形成的地质条件，以期为该类矿产的开发利用提供部分基础性资料。
The paper mainly introduces the shape character, physical property, crystalline structure and inclusion character and geological condition for forming ore, in order to offer some basic…
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