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

• 𝐖𝐄𝐈𝐆𝐇𝐓(𝐜𝐭): 52.40

• 𝐒𝐈𝐙𝐄(𝐦𝐦): 29x16.5x10 mm

• 𝐏𝐈𝐄𝐂𝐄(𝐬): 1 pc

• 𝐂𝐋𝐀𝐑𝐈𝐓𝐘: Included

• 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