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Monday, July 18, 2011

PIETERSITE - stone of many colors !

Pietersite was discovered by Sid Pieters in 1962 while he was prospecting some farmland in Namibia, Africa. After his discovery, he registered the find in the mineral records of Great Britain. His discovery was published in 1964, and the material was named Pietersite. Currently there are only two known sources of Pietersite; Namibia and China. The Chinese form of pietersite is said to have been discovered in 1993, but did not come to market until 1997. The Chinese Pietersite exhibits slightly different color variations from Mr. Pieter's original mineral, but both are beautiful and are now universally recognized as Pietersite. Both are a magnificent, rare, colorful, semi-transparent gem stone.

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These two forms of pietersite are similar but still somewhat different from each other. The original African (Namibian) variety is mainly Crocidolite. The Chinese Pietersite's fibrous mineral Torendrikite is a magnesium-rich alkalic amphibole.

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Africa Pietersite colors include various blues, golds and reds, that may appear together or alone. Blue is the rarest color, followed by red. The blues range from a baby blue to dark midnight hue. Golds can be light to very deep and rich, sometimes having a reddish hue. All fibrous 3color variations will have a superb and striking chatoyancy, the bright and subtly changing shimmer of color that moves along the surface of a gemstone as it is viewed from varying angles. Chinese Pietersite has striking combinations of gold, red and blue color segments which sometimes also includes a deep golden brown color.

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Pietersite Pendants

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Regardless of the source, Pietersite will always have brecciated, fibrous bands of blue, gold and/or red tiger eye type fibers in quartz. The fibrous structure in Pietersite has been folded, stressed, even fractured and/or broken apart via the earth's geologic processes. The fibrous materials have then been reformed and naturally recemented together by quartz. Stones and crystals that go through this process are referred to as brecciated, creating a finished product with multiple colors, hues and superb chatoyancy. While Pietersite has the lovely chatoyancy of Tiger Eye, it is not found in continuously structured bands or fibers, more in swirls, swathes and fibrous (sometimes linear) segments. Thus the structure of the fibrous streaks in Pietersite may appear rather chaotic, and can flow or exist in many directions side-by-side like bold paint strokes. All fibrous color variations will have a superb and striking chatoyancy, the bright and subtly changing shimmer of color that moves along the surface of a gemstone as it is viewed from varying angles.

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Jewelry made from Pietersite can be as striking as it can be different with the many available colors.

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