Gemstones & Minerals

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Iris Agate - Brazil - 8.6 x 3.6 x .15 cm - finely banded agate, its nickname from the beautiful rainbow effect produced by an optical phenomenon known as diffraction when viewed in transmitted light. Photos are of slightly different angles of backlighting of the same slice of agate. Demonstrating, spectral colors change with the angle of incident light and observation.
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The Pink Star Diamond is a "Fancy Vivid Pink" diamond that was mined in 1999 in South Africa. Weighing in at 59.6 carats, this gem was sold by Sotheby's for a record $83 million: more than any other diamond - or any gem - ever sold.
Featured Stones 2009-2013 — Pala international
Tanzanian Sunstone
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Gold.
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Opal Fire - Ruby Optical Lead Crystal, Dichroic Lamination - 7" or 10"
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Zebra agate in quartz, Brazil
Crystals and Gemstones
Watermelon Tourmaline
The Florentine Diamond is a lost diamond of Indian origin. It is light yellow in colour with very slight green overtones. It is cut in the form of an irregular (although very intricate) nine-sided 126-facet double rose cut, with a weight of 137.27 carats (27.454 g). The stone is also known as the Tuscan, the Tuscany Diamond, the Grand Duke of Tuscany, the Austrian Diamond and the Austrian Yellow Diamond.