carnallite

名词 carnallite:

1. a white or reddish mineral consisting of hydrous chlorides of potassium and magnesium; used as a fertilizer and as a source of potassium and magnesium

car.nall.ite

n.（名词）
A white, brownish, or reddish mineral, KCl·MgCl2·'H 2O, an ore of potassium, used to manufacture potash salts.
光卤石：一种白色、棕褐色或微红色矿物质，KCl·MgCl2·'H 2O，钾矿石，用于制造钾盐

来源：
After Rudolf von Carnall (804-874), German mining engineer
源自鲁道夫·凡 卡纳尔 (804-874年），德国采矿工程专家