adularia: is refers to the stone beautiful of transparency colourless of the orthoclase, or of the ore of them silicates of class 9 ( group of the clays ).
In geology it is a variety of feldspar, transparent and usually colorless. It is the name of a transparent variety of orthoclase, which crystallizes curiously at low temperatures. It is also known as moonstone, moonstone or orotosa.
adularia - referred to in almineral derived from the clay, which is usually in white or colorless and normally also covered with green tones -