It's a Beautiful Natural Green Color Hydrogrossular Garnet Loose Gemstone From Afghanistan

• WEIGHT(ct): 52.40

• SIZE(mm): 29x16.5x10 mm

• PIECE(s): 1

• CLARITY: I

• TREATMENT: NONE

• ORIGIN: Afghanistan

• CERTIFICATE: IF REQUESTED

Whats Is Hydrogrossular ?

Hydrogrossular is a calcium aluminium garnet series. The endmembers of the hydrogarnet family depend on the degree of substitution: grossular: x = 0 hibschite: 0.2 < x < 1.5 katoite: 1.5 < x < 3. Hydrogrossular is a garnet variety in which a Si4+ is missing from a tetrahedral site. Wikipedia
Specific gravity: 4.15+0.05; −0.03
Optical properties: single refractive, anomalous aggregate reaction
Crystal habit: Massive
Crystal system: Cubic
Mohs scale hardness: 7–7.5
Color: green to bluish green, pink, white, gray
Ultraviolet fluorescence: inert