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Ch. 3: Physical Properties of Gem Stones

Ch. 3: Physical Properties of Gem Stones Page of 311 Ch. 3: Physical Properties of Gem Stones Text size:minus plus Restore normal size   Mail page  Print this page
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PRECIOUS STONES.
A very full and exact account of these and other methods of determining specific gravity will be found in Max Bauer's work above mentioned. In the following list of the specific gravities of precious stones the minerals are arranged on the basis of composition that will be followed in the systematic description.
V. Properties Dependent on the State of Aggregation.
Of the many properties of minerals in general, falling under this head, only two specially concern us in the study of precious stones—fracture and brittleness. Fracture can
Ch. 3: Physical Properties of Gem Stones Page of 311 Ch. 3: Physical Properties of Gem Stones
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