该品为少常用中药,原名"砒石",始载于宋"开宝本草"。市售信石分红信石及白信石二种,但白信石极 少见,故主要为红信石,其加工制品为砒霜。该品的原矿物主要为砷华,但也有用毒砂或雄黄加工制造而成的。 来源为天然的砷华矿石、或由毒砂(硫砷铁矿,FeAsS)、雄黄加工制造而成。 产地主产于江西、湖南、广东等省。
如果你坚信石头会开花,那么开花的不仅仅是石头。
If you believe firmly that the stone will bloom, then stone is not the only one.
在无数封信石沉大海后,他明白了,父母抛弃了他。
In numerous letters received no response, he understood parents abandoned him.
我们相信石块迟早要把油箱砸出洞来,或者损伤发动机。
We felt sure that sooner or later a stone would rip a hold in our petrol tank or damage the engine.
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