|
PLASMA.
Plasma is a dark grass-green quartz, feebly translucent, and is sometimes covered with white or yellow spots. Plasma is somewhat lighter in weight than the heliotrope and does not take as fine a polish.
This stone is found in India, China, and in the Black Forest, Germany.
CHALCEDONY.
Chalcedony is cloudy or translucent, white, yellowish-gray, blackish-brown, light to dark-blue, milky-white, and black.
This quartz is sometimes nearly transparent, waxy in lustre, and in some varieties has a light gray and transparent base with dark cloudy spots. This last variety is called "cloudy chalcedony. Another kind, with gray and white stripes alternating, is known as chalcedonyx.
Iceland, the Faroe Islands, Huttenberg, Loben, Saxony, Hungary, Nubia, Nova Scotia, Oberstein, Ceylon, India, Siberia, Carinthia, the Hebrides, the United States, and Canada are places where chalcedony is found. |
You are here:
JJKent Home >>
Precious Stones Guide Vol 1
>> About the Properties of Plasma and Chalcedony
| <<About the Properties of Chrysoprase and Prase | All About the Properties and Locations of Agates>> |