Opalescence is visible where the gem has grown between the cracks in the matrix

ma il padiglione appare bombato: una tecnica di taglio che serve a trattenere maggior peso

These are clear and perfectly formed crystals

Cuprian tourmaline gem with a beautiful mint green color

A flat cabochon with a good distribution of phytomorphic inclusions

Ametista taglio goccia cabochon 43,70 topazio incolore Opalescence is visible where theLarge semi transparent Amethyst cabochon, with color zoning and clear cleavage and crystallization planes; which are characteristic of the trapiche variety of this gem. Beautiful color in its non uniform distribution, which perfectly follows the contours of what in gemological jargon is called "Brazilian Twinning Law"