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(i) Colour Distinct appearance by colour used to identify
specific minerals eg. Gold is yellow.
(ii) Cleavage Tendency of mineral to break in certain direction.
Some minerals break along planes on which atomic bonds are relatively weak.
(iii) Hardness Ability to resist scratching. Various minerals have
varying degree of hardness eg. Talc is softest while Diamond is hardest.
Kavungya answered the question on June 7, 2019 at 09:55
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