Inclusion Research Case Study of a Copper-Bearing Tourmaline from Mozambique:
Materials
Fig. Par67a-b An example of a large copper-bearing tourmaline rough from Mozambique is shown. It has been experimentally faceted in our own GRS cutting studio into a set of 13 faceted gemstones for this report (Fig. Par68a). The rough of 983ct was acquired from an African supplier in 2007. The largest tourmaline obtained after faceting is over 103 ct and the smaller pear-shapes are between 3 to 7 ct. A small portion of the stones was of a “Paraiba”-type green-blue color. The remaining stones were bluish-green, green and yellowish-green. All faceted stones are in GRS collection. An inclusion case study was performed on these samples that all originated from the same rough (See Fig. Par68-71).
Inclusion Research Case Study of a Copper-Bearing Tourmaline from Mozambique:
Materials
