Borosilicate minerals such as tourmaline, axinite, and grandidierite occur in deposits formed by alteration of rocks surrounding a cooling magma chamber.
(Borosilicate minerals such as tourmaline, axinite, and grandidierite; occur; L:in deposits) (deposits; formed; by alteration of rocks) (rocks; surrounding; a cooling magma chamber)
Borosilicate minerals such as tourmaline, axinite, and grandidierite deposits rocks
occur formed surrounding
L:in deposits
by alteration of rocks
a cooling magma chamber