I will be at the TNMS in Tucson, February 5 to 11, 2019! See you at the show!


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Siglo Veinte Mine (Siglo XX), Llallagua, Bolivia

Tan hemispherical crystal aggregates covering a clear quartz crystal.  A really nice example of this old material.  We got this specimen when we obtained the collection of Paul Zimmerman, which we put on sale in 1970.