Assertion: fresh biotite | /r/HasProperty | variable
Facets:
value: very
type: DEGREE
value: in regard to magnesia and iron
type: OTHER
value: in composition
type: OTHER
Source sentences:
text: Fresh biotite is very variable in composition, particularly in regard to magnesia and iron, and it would be entirely possible for the 15 soil biotites to contain fresh biotite of a somewhat different composition from that used in calculating the composition of the mixture.