A rare gemstone, and very powerful in various applications such as lightwork, healing and gridwork - amongst others.
They have interesting inclusions, and each one varies to the next. There are two sizes available, and they measure as follows:-
SMALL - approximately 20mm by 20mm - some maybe slightly larger
LARGE - approximately 25mm by 30mm -some maybe slightly larger
You get one of these crystals as photo is to show natural variation