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natural sciences, geology, minerals, malachite


The most recognisable characteristic of malachite is its intense green colour. It is also popular because of its striped texture, with alternating strips of lighter and darker shades.

Odjeljenje za prirodne nauke, geologija, minerali, beril


A very rare and valuable mineral, beryl can be coloured or colourless.

Odjeljenje za prirodne nauke, geologija, minerali, korund


Corundum is an attractive form of aluminium oxide used for jewellery. Other forms with the same composition and crystalline structure include ruby (red from traces of chrome) and sapphire (various colours, including blue and bright red, from iron or titanium).

geologija, minerali, pirit


Pyrite comes in beautiful and regular crystalline forms. With its yellow colour and metallic sheen, it is reminiscent of gold. It differs from the precious metals in that it cannot be worked. Also, while gold grinds into yellow dust, ground pyrite is black.