Tag: mineralogy
Are you aware the mineralogy of Chalcedony?
Of all of the minerals used as gems, non compares with quartz in its variety of incidence and in abundance of types. It's present...
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Spotlight on the new Frederique Constant
Spotlight on the new Frederique Constant : Slimline Automatic
Since 1988, Frederique Constant has been extracting the best of Swiss traditional historic watchmaking, in order...
