RhodochrositeWutong Mine, Liubao, Cangwu Co., Wuzhou Prefecture, Guangxi Zhuang Autonomous Region, China
Photo: Jake Slagle Mine was discovered in 1958 and was a minor producer of lead (4676), zinc (3555) and silver (6.65 tons). It went on a "care and maintenance" condition in the summer of 2011. Ores are found in fractures (ladder type vein) in Cambrian chert, sandstones, siltstones and shales. There were three periods of faulting and mineral deposition, a pre-ore faulting, fracturing with deposition of quartz and huebnerite and a final faulting with emplacement of base metals, fluorite and rhodochrosite followed by sparse deposition of silver minerals. The temperatures of deposition started below 200, maxed at 300+ and then fell to below 100 degrees C.
NOTES:
(1) This mine is believed to be the actual source of the rhodochrosite specimens that were initially attributed to Babu or Nandan (both in Hezhou Prefecture). On the other hand, there are a number of deposits of similar mineralization style in Hezhou Prefecture, from which a similar paragenesis has been reported (e.g. Shanhu).
(2) Bertrandite specimens from this locality have been sold mislabelled as being from the Yaogangxian Mine in Hunan Province.
Mineral List
15 entries listed. 15 valid minerals.
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References
Lees, B., S. Behling, D. Misantoni, V. Luders, R. Romer, P. L. Sanchez, P. Cory (2011) The Wutong Mine, Guangxi Zhuang Autonomous Region, China. Mineralogical Record 42:521-544.
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