|
LABRADORITE:
The beautiful stone of Labrador, unknown until about a hundred years ago, it was discovered in the Island of St. Paul, near the coast of Labrador, is the type of one of the four great species formed by Rose, at the expense of the ancient group of the felspars. Its specific gravity is 2.6 to 2.7.
The labradorite is called sometimes the opaline felspar, because it resembles the opal in its beautiful reflections of colours. The finest colours are a play of blue and green upon gray. Yellow and bronze-red are less common; and a pearly-gray and purple-red still more rare.
The labradorite is essentially formed of silica, alumina, lime, and soda.
It has been found in its crystallized state scattered through volcanic productions, and notably in the lavas of Etna. |
You are here:
JJKent Home >>
Precious Stones Guide Vol 2
>> Location and Characteristics of Labradorite
| <<Composition of Tourmalines | Composition and Use Lapis-Lazuli>> |