Peristerite Value, Price, and Jewelry Information


peristerite
Moonstone (iridescent peristerite-oligoclase feldspar) (Chupa Pegmatite Field, Mesoproterozoic, 1.75 to 2.10 Ga; at or near Chupa Bay, northwestern Karelia, far-nw Russia) by James St. John, on Flickr

Peristerite is primarily oligoclase with a complex mixture of feldspars. It has iridescence that is either blue or white.

Peristerite Value

The International Gem Society (IGS) has a list of businesses offering gemstone appraisal services.

Peristerite Information

DataValue
NamePeristerite
Is a Variety ofAlbite

Comments

Compositions in the calcic oligoclase range (Ab76) cool and unmix to an inhomogeneous mixture of two feldspars, producing a Schiller, which in the case of peristerites is white or bluish. The effect seems to emanate within the body of the feldspar as a kind of glow.

Name

Peristerite is from the Greek word peristera, meaning pigeon.

Occurrence

Peristerite is well known from Ontario, Canada, where it is very abundant. It is also found at Kioo Hill, Kenya: S.G. 2.63; a=1.531: β= 1.535; γ= 1.539.