名 称：中华麦饭石石

岩 性：蚀变黑云石英二长闪长岩。

形成时代：侏罗纪

主要用途：最早记载麦饭石的是唐代文学家、哲学家刘禹锡，以后宋代医学家马嗣明、苏颂具有论述。明代李时珍在《本草纲目》论述麦饭石“甘温无毒，主治一切痈疽背发”。麦饭石被认为含有人体所需可溶性微量元素组合，具有一定的保健作用，曾认为麦饭石微粉具有一定的吸附能力，能净化水质，可做食品添加剂和保鲜剂，水及液体的矿化剂和净化剂，化妆品填料，饲料及农肥添加剂，除臭剂。需要说明的是以上所列用途均尚无现代动物与人类科学实验的充分依据，不能作为科学的定论。

采集地点：内蒙古奈曼旗平顶山

Name：Medical Stone

Lithology：Altered biotite quartz diorite.

Age：Jurassic

Usage：The earliest documentation of the Chinese medical stone is from Liu Yuxi, a litterateur and philosopher of the Tang Dynasty. This was followed by medical scientists Ma Siming and Su Song of Song Dynasty. Li Shizhen, of the Ming Dynasty wrote that the medical stone is of sweet and warm nature, no-toxic, and can relieve fever. It is believed that the medical stone contains essential dissoluble trace elements demanded by human body and is therefore be helpful for health. It is also suggested that the stone powder is of absorption nature, and could be used in purifying water and additives to foods and drinks, cosmetics, feed, fertilizers and deodorizer.

Sample site：Pingdingshan, Namanqi, Inner Mongolia.