Tag: quartz

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Why Can Wood Also Become Fossilized?

Wood is a relatively hard material, but under the right conditions and with enough time, it can transform into "petrified wood" – a substance even harder than stone. Petrified wood, ...

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Which is rarer, diamonds or emeralds?

Diamonds are precious stones formed at the greatest depths of the Earth, approximately 150 - 200 km, yet they are still not as challenging to extract as emeralds.Diamonds and emeralds ...

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The Woman Who Found a Giant Amethyst

A 4kg Gemstone Discovered by a Woman in Australia is Considered Quite Rare.Kristy McMullen and her associate Patrick astonished netizens when they "hunted" a amethyst - a type of semi-precious ...