Sillimanite: Andalusite, kyanite, sillimanite
Varley, E R
Sillimanite: Andalusite, kyanite, sillimanite - London: Her Majesty Stationary Office, 1965 - v, 165p. - Overseas geological surveys .
Cyanite
551.22(42) / K5
Sillimanite: Andalusite, kyanite, sillimanite - London: Her Majesty Stationary Office, 1965 - v, 165p. - Overseas geological surveys .
Cyanite
551.22(42) / K5