2017-04-23
Sand Stone:

Sandstone (sometimes known as arenite) is a 

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Nastya Kazanbaeva 2

2017-04-23
Diamond:

The only gemstone composed of one pure element, carbon, whose molecules are bonded with perfect symmetry in every direction. This perfect atomic structure is what makes it the hardest...

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Valdemar Brekhov 5

2016-10-20
Competition for the best Indian stone craft shop at GOLPERA marketplace:

Dear Indian stone artisans,
We are pleased to announce a competition for the best Indian shop on GOLPERA stone craft marketplace in October 2016.
It's easy to set up a shop on...

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a-test a-test 4

2016-10-17
Topaz:

Topaz is a silicate mineral of aluminium and fluorine.
The name "topaz" is usually derived from the Greek Τοπάζιος...

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2016-10-16
Chalcedony:

Chalcedony is a cryptocrystalline form of silica, composed of very fine intergrowths of quartz and moganite. These are both silica minerals, but they differ in that quartz has a trigonal crystal...

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