Ulexite

Info: Ulexite is colourless, sometimes white, sometimes even green. It is translucent to transparent, with glass to silk luster. Crystalizes in triclinic crystals.

How to recognize: In UV-light ulexite emits strong blue-green flourescence, but often can emit also strong yellow coloured flourescence.

Found: Ulexite was found in USA, Chille, Peru, Argentina and Turkey.

Crystal structure
Triclinic
Hardness
2,5
Colour
Colourless, white
Luster
Glass, silk