Notturno. Una pietra rara e intensa, con riflessi blu profondi e tocchi metallici. Blue Tiger Iron aggiunge un tocco elegante e originale ad ogni ambiente.

It is a stone that belongs to the feldspar family: an important group of minerals that make up 60 percent of the earth’s crust. Its color can also vary according to the amount of iron present.The more it is present, the greater the oxidation and consequently the red color may prevail; if it is less, that is when the bluish blackish color prevails.