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Reference Point
VERY RARE 2.77 CARAT VVS NORWEGIAN MINT GREEN OLIGOCLASE
GEM TYPE: OLIGOCLASE
CARAT WEIGHT: 2.77 CARATS
CLARITY: VVS
DIMENSIONS: 10.81 x 7.27 x 4.72mm
COLOUR: PASTEL MINT
CUT: CUSHION CUT
ORIGIN: BAMBLE, NORWAY
TREATMENTS: NONE
Another extremely rare and exceedingly beautiful gemstone from HPJ this weekend.
Oligoclase is a very rare (in gemstone quality) Feldspar comprising 70-90% Albite and 10-30% Anorthite.
The name Oligoclase derived from the Greek ‘oligos’ - little, and ‘clasein’ - to break, because the mineral was thought to have a less perfect cleavage than Albite.
It was named was by August Breithaupt in 1826.
This is a beautiful specimen, and very very rare in this size combined with such good clarity.