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VESUVIANITE (IDOCRASE)
SCIENTIFIC INFORMATION: Vesuvianite is composed of calcium, magnesium
and aluminum silicate, often with some beryllium and fluorine. The chemistry
is Ca10Mg2Al4(SiO4)5(Si2)7)2(OH)4. Specimens range from brown
and green to a rare yellow or blue. The hardness is 6-1/2.
ENVIRONMENT: Vesuvianite forms by igneous and metamorphic processes. It
commonly is metamorphic and occurs with grossular, wollastonite, and
calcite in hornfels of contact metamorphic rocks; with chromite and
magnetite in serpentinite of hydrothermal metamorphic rocks; and with
wollastonite, andradite, and diopside in carbonatites.
OCCURENCE: Gem-quality Vesuvianite has been obtained from a pegmatite in
marble near Sixteen Island Lake, Laurel, Argenteuil Co., Quebec, and
beautiful micromount cyrstals of purplish-pink color occur in massive
Vesuvianite at the Montral chrome pit at Black Lake, Megantic Co., Quebec.
The blue variety called [cyprine] has been obtained at Franklin, Sussex Co.,
New Jersey. Fine crystals up to 1-1/2 inches across occur in pale-blue
calcite at Scratch Gravel, near Helena, Lewis and Clark Co., Montana, and
spectacular material of similar nature occurs at quarries near Riverside,
California. Beautiful pale-green massive Vesuvianite ([californite]) occurs
in California at Pulga, Butte Co., and near Happy Camp, Siskiyou Co., and
crude yellow prismatic crystals occur with grossular at Xalostoc, Morelos,
and Lake Jaco, Chihuahua, Mexico.
GEMSTONE INFORMATION: Translucent gray to green or nearly colorless
Vesuvianite with green streaks is called [californite], and is often sold as
"California Jade." Californite is fashioned into cabochons. Principal
sources are the USSR, Italy, Canada and California.
NAME: The name "Vesuvianite" is from the original locality at Mt. Vesuvius,
Italy. The alternate name, "idocrase," comes from the Greek [eidos,] "form",
and [krasis,] "mixture," because Vesuvianite may appear to combine the
crystal forms of several other minerals.
LEGEND and LORE: None found.
MAGICAL PROPERTIES: Dolfyn associates this stone with Passion, enthusiasm,
warmth and devotion.
HEALING: No specific information found, other than what Dolfyn states.
PERSONAL EXPERIENCE: None. I do not have a specimen of Vesuvianite. |
-------Credits and Bibliography------- 1. Scientific,
Environment, Occurrence and Name are from (or paraphrased from)" The Audubon
Society field Guide to North American Rocks and Minerals".
2. Other scientific information may be from "Simon & Schuester's Guide to
Gems and Precious Stones".
3. Precious and semi-precious gemstone information may come from "Gemstones"
by E. H. Rutland.
4. Other precious and semi-precious gemstone information may come from "Gem
Cutting", sec. ed., by John Sinkankas.
5. Basic Legends, Lore and Magical Properties are from "Cunningham's
Encyclopedia of Crystal, Gem & Metal Magic", by Scott Cunningham.
6. Some magical and healing information from "Crystal Wisdom, Spiritual
Properties of Crystals and Gemstones" by Dolfyn.
7. More legends and lore may come from "Stone Power" by Dorothee L. Mella.
8. Healing information is from "The Women's Book of Healing", by Diane
Stein.
9. Additional healing information may be from "The Occult and Curative
Powers of Precious Stones" by William T. Fernie, M.D.
10. Personal Experience is from the personal experience, journals and
notebooks, by Tandika Star.
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