This group of tectosilicate minerals includes anorthite, but unlike anorthite most of these minerals include aluminum, silicon, and oxygen in a one to three to eight ratio.
This group of tectosilicate minerals includes anorthite, but unlike anorthite most of these minerals include aluminum, silicon, and oxygen in a one to three to eight ratio. One of its two major forms is labeled with the letter K, the word alkali, or the term orthoclase, and the other form, which contains calcium or sodium instead of potassium, is plagioclase. Name this group that does not cleave well, which is one difference between it and the micas.
This group of tectosilicate minerals includes anorthite, but unlike anorthite most of these minerals include aluminum, silicon, and oxygen in a one to three to eight ratio.
Feldspar(s)