Spirit Quartz Cluster

Also called Cactus or Fairy Quartz. A Spirit Quartz, formation is known for when Quartz/Amethyst crystals have a second-generation growth. So often you get theses drusy points surrounding the original crystal. Yet you will still see the top of the original crystal. This creates the Cactus type look. Sprit Amethyst can also form nearby. 

*Shaka hand gesture, One very cool crystal. ;-)

Approximate measurements.
4.6cm x 5cm x 3.4cm
75grams