Among foreign mineralogists and collectors, Libethenite Cu2(PO4)(OH) is probably the best known mineral from Slovakia. It was first described in 1823 by J. F. August Breithaupt, a leading mineralogist of the 19th century, a German professor at the Freiberg Mining Academy. He named it after the German name for the town of Ľubietová – Libethen. The importance of this mineral has also been underlined by the fact that the crystal is the central theme of the logo of the Mineralogical Society of Slovakia – today's successor to the world's second oldest mineralogical society, founded in 1811 in Banská Štiavnica. Libethenite crystallizes...
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