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THE MINERALS THE MINERALS
The minerals are very important
GOLD BARS
Gold is a soft, brilliant, yellow, heavy
metal…
LAPIS LAZULI
Lapis Lazulis is a gem blue colour, very
estimated in jewellery from the
antiquity …
MINES DANGERMINES DANGER
The miners have diseases of the lung
IRON
The iron is a malleable metal, of gray
silver colour and presents magnetic
properties …
THE PIRYTE
The pyrite is a false gold …
THE ONIX
The onyx has volcanic origin …
THE DIAMOND
The diamond is used for doing jewels …
QUARZ
The quartz is a very abundant mineral …
THE EMERALD
Emerald, it is a mineral which name,
possibly Persian, means green stone …
THE RUBI
The synthetic rubies could mixing
alum and pigments of chrome …
THE OBSIDIAN
The obsidian, called sometimes
volcanic glass …
THE END
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