A popular guide to minerals : with chapters on the Bement Collection of minerals in the American Museum of Natural History, and the development of mineralogy . , resisting the blows of ham-mers, its inertness to fire (ignium victrix natura), and contributesan excellent description of four kinds of diamonds: the Indian,not found with gold (he has just before alluded to the associationof the diamond with gold), but similar to crystal (quartz); theArabian, smaller; the cenchros, like a millet seed; the Macedonian,found in the gold mines of Philippi, equal to a seed of these he menti


A popular guide to minerals : with chapters on the Bement Collection of minerals in the American Museum of Natural History, and the development of mineralogy . , resisting the blows of ham-mers, its inertness to fire (ignium victrix natura), and contributesan excellent description of four kinds of diamonds: the Indian,not found with gold (he has just before alluded to the associationof the diamond with gold), but similar to crystal (quartz); theArabian, smaller; the cenchros, like a millet seed; the Macedonian,found in the gold mines of Philippi, equal to a seed of these he mentions the Cyprian, of a blue tint, efficacious inmedicine, and the siderites, steely in splendor, and heavier, yetdiffering in nature, for it can be broken by blows, and perforatedby the other adamas. These last two varieties have been regardedas sapphires. Pliny attributes many virtues to the diamond; itcorrects poison, keeps away madness, expels vain fears, and, as toits infrangibility, if steeped in goats blood, it can be broken. Pliny exults with a connoisseurs fervor over the delicate anddeep shades of emerald. It alone of gems fills the eye, neither. WILLEMITE Sterling, Sussex Co., N. J. Bement Collection, American Museum of Natural History


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Keywords: ., bookcentury1900, bookdecade1910, booksubjectmineral, bookyear1912