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Volborthite with Malachite
Volborthite with Malachite. Front
Front
Volborthite with Malachite. Rear
Rear
 

TC67AB3: A novelty at Tucson 2015. Big and thick Volborthite crystal with deep olive-green color with yellowish shades, partially coated by aggregates of small acicular crystal of the same Volborthite. It is on Malachite, and on matrix. Due to the size and the definition of the crystal this sample has an extraordinary quality for the species, a rare copper vanadate. In fact, we are not aware of better Volborthite than those found at the Milpillas mine.
The sample has been analyzed and we will send a copy of the analysis to the buyer.
The specimen has been photographed and published in the magazine ‘Mineral Up’ number 01/2015, page 43
Milpillas Mine, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (2014)

Specimen size: 2.3 × 1.5 × 1.6 cm = 0.91” × 0.59” × 0.63”

Main crystal size: 1.4 × 1 cm = 0.55” × 0.39”




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