beryl

The stone on hilt of keris posted by Mr.Wudao should be the so-called farraginous stone,not the ruby or beryl.

无刀先生贴的克力士柄是俗称之杂石，并非红、绿宝石。

The beryl crystal from Pingwu County,Sichuan Province that occurred on the low saturation,alkaline and pneumatogenic—thermal conditions,is characterized by the flat tabular shape.

在低饱和度、碱性、气成—热液条件下形成的四川平武绿柱石宝石晶体,具有特征的扁平板状几何外形。