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Sources :
There are known Malachite deposits in Australia, Chile, England, France, Germany,
Greece, Mexico, Morocco, Namibia, United States (Arizona, Pennsylvania, North Carolina
and Utah), and Zaire.
Evaluation :
Malachite is rated at 3.5 – 4 on the Moh's Scale of Hardness, meaning that this
gemstone is best suited to brooches, earrings and pendants.
Malachite is found in various shades of green, but its base color is most usually
dark green. Malachites very often exhibit banding, where bands of lighter or darker
green run around the stone at irregular intervals.
Africa, Arizona, Russia and Zaire are the places currently producing the best quality
Malachite.
This Malachite is dark green in body color, with Light green or blackish-green
concentric circles. Malachites of this nature from the aforementioned locations
are generally priced significantly higher than treated stones, or stones from other
locations.
Common Cuts :
Malachite is most commonly used for ornamental carvings, or in jewelry in cabochon
or bead form.
Routine Enhancements :
Whilst Malachite is rarely treated, when it is, it is usually impregnated with clear, colorless wax in order to improve the overall durability and appearance of the gemstone.
Treated or synthetic Malachites generally display more pronounced, highlighted bands
that are often black or white.
Care & Cleaning :
Malachite should only ever be cleaned with a soft, dry cloth. Avoid exposure to
chemicals, prolonged exposure to sunlight, or extremes of temperature change, as
this can cause permanent coloration changes to the stone. Both ultrasonic and steam
cleaners are to be avoided.
Store your Malachite jewelry away from harder jewelry that may scratch or damage this softer stone.
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