FA-TISP024BY-002-201

Natural Gems Belgium Colored Stone Certification FA-TISP024BY-002-201

IDENTIFICATION : Natural brownish orangey yellow shpene - 0.565 ct - cushion - unheated

Species : Natural Titanite mineral
Variety : Sphene

DESCRIPTION

Shape & Cutting Style : cushion, mixed cut
Measurements : 4.7 x 4.6 x 3.0 mm
Total Carat Weight : 0.565 carat
Color : brownish orangey yellow  
Clarity : I3
Transparency : Transparent
Luster:  Adamantine  (difficult to polish)

Birefringence : 0.100-0.192.
Cleavage : Distinct 1 direction
Crystallography : Monoclinic
Dispersion : 0.051 (strong)
Hardness : 5- 5.5
Inclusions : feathers
Refractive index : 1.843-2.110
Specific gravity : 3.45-3.55

COMMENTS :

No indications of heating - No indications of treatment
Strong dispersion rate 
tiny chips on girdle, fissure inside downside

Personal Note From Natural Gems Belgium:

This oval cut gemstone its cut grade is good, symmetry is good, and polish is fair to good, given its level of difficulty exceptional. The luster is also good and adamantine fair.