SRB Stone Supplies
Rough Rock, Slabs and Lapidary Materials
MEXICAN COCONUTS (Choyas Nodules).
Of the two halves shown below, the first has good blue colour and nice banding throughout. The second has blue banding
around a solid quartz centre. Both have taken an excellent polish and would make really nice display pieces.
I've now cut a few of these and they do vary. I've so far had 4 that are similar to those in the photograph, one that was
the same blue colour but is of little use due to inclusions, and one that is a strange orange/brown with a cavity lined with small crystals.
So it seems that there's a 60% chance of getting two useful halves.
Each nodule is approximately 3 inches in diameter and weighs around a pound. £4.50/lb, £9.80/Kg