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THE Tourmaline as talisman. The Tourmaline is of comparatively modern origin in Europe as far as its use as a precious stone is concerned. It is very remarkable because of its electrical qualities, for when heated one end will become positive and attract straws or ashes, whilst the other end will be [...] The turquoise is a pseudomorph. In colour it is blue or greenish-blue, sometimes opaque, varying between that and feeble translucency, though it should be said that in all forms, even those considered opaque, a thin cutting of the stone appears almost transparent, so that the usual classing of it among the opaque stones must be [...] |
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