CHALCOPYRITE GALENA RHODOCHROSITE
An unusual combo specimen featuring Chalcopyrite Galena Rhodochrosite and a little Mangano Calcite in one piece. The Galena Crystals when seen up close are amazing and also the Chalcopyrite crystals are very visible. Even better under magnification of course. The little Mangano Calcite crystals are fluorescent under long wave UV light as shown in the photos. The Rhodochrosite is also a pale pink which the photos don’t show well.
Krushev Dol Mine, Madan, Bulgaria.
7.4cm x 3.7cm x 3.5cm, 195g
A major ore of copper. Common in sulfide veins and disseminated in igneous rocks.
Weathering may lead to the formation of malachite, azurite, brochantite, langite and numerous other secondary copper minerals.
Galena is the primary ore mineral of lead. Worked for its lead content as early as 3000 BC, it is found in ore veins with sphalerite, pyrite, chalcopyrite, tennantite-tetrahedrite, etc. and in skarns, as well as in sedimentary rocks where it may replace carbonate beds or be deposited in pore spaces. The crystals are bright when fresh but often tarnish after exposure to air.
Rhodochrosite was named in 1813 by Johann Friedrich Ludwig Hausmann from the Greek words for rose and colouring, referring of course, to its colour.