A rare blue-green Lazulite gemstone from the Laila mine, Gilgit-Baltistan district, Skardu, Pakistan.
Lazulite is a magnesium iron aluminium phosphate mineral with chemical formula MgAl2(PO4)2(OH)2.
The small deposits of Lazulite from this relatively recently discovered source are noted for their colour, markedly different from the deep blue gems more often encountered from other locales, and for their distinct trichroism, exhibiting three colours depending on the viewing angle.
Although the phenomenon is far easier to observe with a dichroscope, the colour range can be seen when held against a pale background.
While the gem appears quite a dark colour in household light, its true beauty is revealed in direct sunlight or when held up to a light source.
It has good clarity (only very faint inclusions) and is a good size for Lazulite from this source.
weight: 1.54 carats
shape: Mixed oval cut
dimensions: 8.60 x 7.00 x 4.32 mm