当您在四川省乐山专区和江津专区一带旅行的时候,您常常会拾到一些美丽的石头。这些石头,有的颜色透明像玻璃,有的颜色鲜红像胭脂,有的颜色澄黄像个橘子,有的颜色黑乌乌的,简直像块煤炭。这些石头,拿起来是重甸甸的,但是它却脆得很,轻轻一击,就碎裂了。这是什么样的石头呢?以往,很少有人注意。最近,由五道桥市制盐厂技术人员的化 When you travel in the Leshan area of ​​Sichuan Province and the Jiangjin area, you often find some beautiful stones. These stones, some transparent in color like glass, some bright red color like rouge, some colors like orange yellow, some color black Uwu, just like a piece of coal. These stones are heavy, but they are brittle, and when they strike, they break. What kind of stone is this? In the past, few people paid attention to it. Recently, the technical staff of the salt factory in Wudaoqiao City