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Product Description
Nickelian magnesite “ citrus chrysoprase”
This attractive material This attractive is found in the Eastern Goldfields area of Western Australia in a belt of ultramafic rocks that stretch from Norseman in the south to near Wiluna in the north. It occurs in many of the same locations as that of chrysoprase, most notably Yerilla , Marshall Pool & Goongarrie but in numerous other places as well.It occurs as veins & plates but also commonly occurs in nodular form. Usually the interiors of these large nodules are of lighter colour & porous which makes them unsuitable for gem cutting. Occasionally these nodules have a skin or rind of dark green chrysoprase which contribute for increased hardness (normally is abour 4 but in this case is 7. Magnesite is magnesium carbonate and occurs as veins & nodules and is an alteration product of serpentine and other magnesium rich rock types. This is produced by hydrothermal leaching of the magnesium from the serpentine.
Calcium, manganese, cobalt, and nickel may also occur in small amounts.
The stone is hand polished on both side. Small cavities may be present. No treatment.
Size:41.2x22.9x5 mm.
Weight: 43.38 ct.
CODE#1249
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Additional Information
| SKU | #1249 |
|---|---|
| Origin | Australia |
