Note the rim of blue tourmaline. Lithiophilite from Varutr sk . Lower left side shows a weathered surface. Often found as compact cleavable masses. Cleavage Basally perfect, imperfect in two directions.
All cleavages are at right angles to each other.
Brown to black on weathered surfaces. Streak White to grayish white. Luster Resinous to vitreous. A primary lithium phosphate common to many pegmatites. Easily transformed into a number of secondary phosphates.