Standard Block: Jadite?

Quesionable.

NOTES: Inhomogeneous, polycrystalline, fine-grained. I think the green material (X-ray map) is jadite, but notice how inhomogeneous it is in the lower left BSE image.

Position82
MineralJadite
Sample NameJade
TypeFeldspar
Nominal formulaNaAlSi2O6
SupplierCannon Microprobe, Seattle, WA
SourceRussian River, California
Original reported analysis
Composition qualityQuestionable
CommentsThis is such a horrific mess that it will never be good for anything other than trying out your imaging skills. Have fun!