Question

write two properties of neelan​

Answer 1

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Answer 2

Explanation:

Chemical and physical properties of Neelam Stone

Mohs scale hardness : 9.0.

Luster : Luster.

Streak : white.

Specific gravity : 3.95–4.03.

Optical properties : 72.2.

Refractive index : 1.768–1.772, 1.760–1.763.