Pyrope — specimen 0050 — weight: 0.56 ct; shape: pear. Very clean specimen; good mixed style cut. Source: Gary Eisenberg, Knoxville, Tennessee.
The section ‘Classification’ presents descriptions of 171 different kinds of natural gemstones (106 mineral species). The Nickel-Strunz systematic order (10th edition) is used. Specimens of the classes shown below are currently available. Since gemmology does not always follow the systematics of minerals in naming, many popular varieties or just ’names’ are also listed.