Is a mineral which can be used as a gem.


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asked Dec 18, 2011 in Abbreviations Questions by anonymous
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 Most gemstones are hard, but some soft minerals are used in jewelry because of theirluster or other physical properties that have aesthetic value
for example:- 'beryl', which is colorless in its pure mineral form, becomes 'emerald' with chromium impurities. If you add manganese instead of chromium, beryl becomes pink 'morganite'. With iron, it becomes 'aquamarine.'

answered Mar 3, 2012 by cp18gupta NoviceUser (3,600 points)

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