Ann: New High-Grade Lithium Project-MOX.AX, page-125

So when they mention “white rocks” you could see how easy it is to make a mistake!
From Wiki: Rock colours for Mica

	Column 1	Column 2
0		purple, rosy, silver, gray (lepidolite); dark green, brown, black (biotite); yellowish-brown, green white (phlogopite); colorless, transparent (muscovite)

From Wiki: Rock colours for Spodumene

Highly variable: white, colorless, gray, pink, lilac, violet, yellow and green, may be bicolored; emerald green - hiddenite; lilac - kunzite