SPHENE 0.72 ct.

SPHENE ( TITANITE )

Is a calcium titanium neosilicate with formula CaTiSiO5 and hardness of 5-5.5

Another stone with a very strong pleochroism and a large variation in colours:

colourless, brown, yellow, green, blue, pink, red and black.

Unfortunately his low hardness ( 5.5 from Mohs scale) does not allow it for jewellery use, instead is a real collector stone.From Madagascar.

Size: 6.2x4.2x3.3 mm.

Weight: 0.72 ct.

Code#6422