Old Mine MINE OF NICKEL CHRYSOPRASE AND OPAL IN SZKLARY. CENTRE OF LOWER SILESIA`S GREEN GOLD. It is a unique place in the whole world because of its existing here gemstones like: green Chrysoprases, milky Opals and red Carnelians. King of Prussia - Friderick the Great once loved them very much. In 1890 mine of nickel strated its work and functions until 1993 when it is finally closed. Today in once of the mine`s tunnel you can visit Underground Educational Route. You should also know that the second place with that huge number of precious jewelry stones like we have in Szklary is Australia. Visiting Visiting our Underground Route is available from 1st of may untill 31st of septembre. During this period the route is open from Tuesday to Sunday, between the hours of 10:15 - 17:15pm. Monday closed. Our tour takes something about one hour with a guide and necessary helmets and lights. During the tour you will know the history of mining and mettalurgy in Szklary. It will be presented by rocks, minerals, precious bomb shelter from the Communism period, in which is now exposed a big amount of extremly attractives Chrysoprases, Opals and Chalcedones. Please don`t forget to take with you warm clothes and comfortables sportives shoes.