Tag: Chalcedony
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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Girard-Perregaux Constant Escapement L.M.wins the “Aiguille d’Or”
Girard-Perregaux Constant Escapement L.M.wins the "Aiguille d'Or" at the Grand Prix D'Horlogerie de GeneveLast night, Swiss manufacturer Girard-Perregaux received the "Aiguille d'Or" award, the...
