Jourado Diamond–尤拉多鑽石

分類：澳洲GAA學習日記

A colorless synthetic spinel

MgOAl2O3

Veneuil method
H:8
RI:1.728
SG:3.63

Diagnostic:Tabby eztinction, Pseudo interference figures, strain knots
negative to thermal probe

X-ray:apple green

UV:weak chalky