Ruby in Zoisite Facts, Information and Description

An ornamental material consisting of crystalline aggregates of green zoisite with non transparent ruby inclusions it is found in Tanzania and the general appearance is unmistakable.

There isn't another stone like it in the mineral world. The green zoisite is relatively soft, between 5.5 - 6.5 while the ruby inclusions are usually quite hard, 9 on the Mohs scale. This can make the stone difficult to cut because of the differences in hardness and usually diamond tools will be used.

Zoisite has been known for nearly two centuries as an ornamental stone. The medium grade red ruby material is usually spread irregularly throughout the green zoisite. It is one of the most colorful of ornamental stones.

Folklore & Legend:

Unknown.

Ruby in Zoisite Jewelry

Designer jewelry made with ruby-in-zoisite.

ruby in zoisite cabs
Polished stones

slab
Rough slab

other green gemstones
other red gemstones

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Sources of Information:
The Curious Lore of Precious Stones by G.F. Kunz. J.D. Lippincott. 1913
The Mineral Gallery http://mineral.galleries.com/
The Mineral and Gemstone Kingdom http://www.minerals.net/
International Colored Gemstone Association http://gemstone.org/
National Audubon Society Field Guide to Rocks and Minerals Alfed A. Knopf 1979
Stones - Their Collection, Identification and Uses by R. V. Dietrich. Geoscience Press. 1980
Guide to Gems and Precious Stones Simon & Schuster 1986
Gemstones of the World by Walter Schumann. Sterling Publishing Co., Inc.
Gems and Jewelry by Joel E. Arem. Geoscience Press. 1992
Gems in Myth, Legend, and Lore by Bruce G. Knuth. Jeweler's Press 1999
Healing Crystals by Cassandra Eason. Vega 2003