Hardness: 7.00
Refractive Index: 1.54-1.55
Specific Gravity: 2.65
Birthstone: (see below)*
Astral Stone:
Anniversary Stone:
Origination: Bolivia
Care & Cleaning: Soft polishing cloth, plain water rinse mild solution of soap & water or commercial jewelry cleaner. Do not soak for long periods of time.
Fiction, Facts & Folklore:
*Because ametrine is in fact part amethyst and part citrine, ametrine is sometimes adopted as a "combined" birthstone ring by couples, or a "mother's ring" where it is appropriate.
Ametrine is considered a gem of the season of the winter.
Natural ametrine comes from just one source, the Anahi mine in Bolivia.
Its� bi-color effect is known in the gem world as �color zoning�.
The color zoning in amethyst is natural. Because of this, no two ametrine will ever be exactly alike.
Even today, retailers with limited background dismiss ametrine as a creation of man. This is totally inaccurate however, since ametrine is 100% natural.
Natural Bolivian ametrine is considered a rare gem, not commonly found at retail.
The ametrine is usually seen in the rectangular emerald shape, for this cut most vividly displays its color zoning properties. Recently however, other cuts including the marquise and round have also surfaced to offer the consumer an excellent alternative.