Kyanite in quartz from Minas Gerais, Brazil.
Crystals huge 30 cm have been found in this deposit.
It is called kyanite because of its blue color.
Group of silicates, rich in AL.
Kyanite is an important raw material
for the manufacture of electrical insulation.
Sample size 80x65x60 mm.
Weight 440 gr.
Kyanite crystals from Brazil, Minas Gerais.
Its name kyanite comes from its blue color.
Extra quality crystals are large and deep blue.
They were formed on a matrix of hyaline quartz.
Kyanite is used in industry to manufacture
products resistant to high temperatures.
Sample size 145x90x35 mm.
Weight 693 gr.