Silver

Info: Cubical or octaedrical crystals of silver are rare. Today silver is found mostly in small dendrical wavy forms. Mostly silver is found in wire forms. Silver can be found in massive forms and piesces of various proportions. In nature, silver is usually covered with thin layer of silver sulfate, in brown-yellow to black colours.

How to recognize: Other than the typical colour, silver is known to dissolve in hydrogen nitrate. In contact with hydrogen sulfide silver darkens. Silver is also known as the best heat and electric conductor.

Found: Known rich deposits of silver are in Copiapo (Chille), Guanjuato and Batopilas (Mexico). Smaller deposits are found in Montana, Idaho and Arizona (USA). In Cobalt City (Ontario, Kanada) were found large fragments weighting up to 1,8 tons. In Czech Republic known locations of silver deposits are Příbramsko, Jáchymovsko, Stará Vožice - Ratiborče, Rudolfov, Jihlava and others.