Pierre de lune 94 lapis-lazuli The black aggregates are made

The black aggregates are made up of amphibole needles (composition of riebeckite to paragasite)

this is called aventurescence

- Andalousite

orange-brown

Pierre de lune 94 lapis-lazuli The black aggregates are madeMoonstone cabochon. Color: Peach with aventurescence effect Shape: Oval Size: 42. 44 x 27. 21mm Weight in grams: 12. 75g Carat weight: 63. 79 carat Country of origin: India Gemological information about moonstone: Note: The name moonstone is a trade name. Officially part of the feldspar group. This is the name generally given to orthoclase. But some feldspars can also inherit this name when they exhibit adularescence, this is the case for example of