Borax

Info: Borax is often found in grain or fibre masses, short fat table crystals often grow on compact masses of other minerals.

How to recognize: In time borax looses water and becomes tinkalkonite. This mineral creates the white facet of the crystal.

Found: Borax was found in Tibet, Iran and USA.

Crystal structure
Monoclinic
Hardness
2 - 2,5
Colour
Colourless, white, grey, yellow
Luster
Glass, pitchy, oily.