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Substantial in weight at 9
C clasp is secure and original
Opals are vibrant
Modelled in lush 9ct yellow gold and centred with a large 1
Diamond spray 5
Vintage 18ct Yellow Gold Phrenite Cabochon Ring Substantial in weight at 9Strikingly unusual ring with a central stone which to all appearances looks similar to a Jadeite or even an Emerald but is in fact a rarely seen Phrenite! First described in 1788 for an occurrence in the Karoo dolomites of Cradock, Eastern Cape Province South Africa and named for colonel Hendrik Von Prehn (1733 1785). Extensive deposits of gem quality Phrenite also occur in the basalt tableland surrounding Wave Hill Station, Northern Territory,
