Cumengite Single Crystal
Collection
Robert Lavinsky
Description
This is a fine thumbnail specimen from the original expeditions of Cumenge in the late 1800s, Ex. Sorbonne museum collections. It is a sharp, untwinned Cumengeite, showing stereotypical classic form. Most Cumengeite forms as twinned growth upon Boleite crystals, and thus you have a starburst-shaped crystal habit. However, some few specimens from the original find, as is this one, show the untwinned habit. It is not quite pristine - there are a few small dings - but it has a good display face where they are hidden from view and "it is what it is," a holy grail of thumbnail and rare species collectors. There is an old label accompanying it which notes that it is a rare untwinned crystal, from the collection of a Dr. FP D'Esopo.
Locality
Amelia Mine, Boleo, Santa Rosalia, Baja California, Mexico
Dimensions
1.0 x 0.6 x 0.6 cm.
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