Danburite - Pink (A grade): crystal - Trigonic

Rare and unusual A grade Pink Danburite crystal, once part of my own personal collection. The upper part is very clear, whilst the lower part is a more translucent pink, with traces of green and white deposits. The spade-like termination is not absolutely perfect: however the main face is completely covered with downward pointing triangular (trigonic) record keep markings, the likes of which I have never seen before!
Size 6 x 2.5 x 1.75 cm