Opal Identification and Value
$110.00 Incl. GST
Out of stock
Author: Paul B. Downing, Ph.D.
Revised, Expanded & Updated.
Characteristics that determine Opal value.
Learn how to properly identify opals from all over the world.
Additional information
| Weight | 0.8 kg |
|---|---|
| Dimensions | 24 × 16.5 × 2 cm |
