Assertion: secondary muscovite | /r/CapableOf | differ in readiness of alteration
Facets:
value: from primary muscovite
type: OTHER
Source sentences:
text: Clarke (3), Merrill (13), Van Ilise (16), and others consider that secondary muscovite is an alteration product of the potash feldspars; but these writers do not state that this alteration takes place under normal conditions of atmospheric weathering, or whether secondary muscovite differs from primary muscovite in readiness of alteration.