CORUNDUM/RUBY/MANAKYA/LAL/YAKUT

CORUNDUM/RUBY PROPERTIES – Aluminum oxide. It has a hardness of 9 which is highest after Diamond. The density is approx […]

DIAMOND – PROPERTIES – ‘C’ Native Carbon.

PROPERTIES – ‘C’ Native Carbon. The same element also occurs naturally in the form of Graphite, another mineral with completely […]

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