OMR02 Hutchinsonite
Quiruvilca Dist., Santiago de Chuco Prov., La Libertad Dept., Peru
17.0x 11.4x 4.1 cm
$0

An exceptionally rich cabinet specimen of this rare thallium bearing mineral, hosting numerous elongated bright crystals sprinkled on a matrix of matte gray sulfides.

Most of the hutchinsonite specimens in collections were recovered from this locality in the 70's and 80's (many had the crystals occurring on orpiment), though over the last 2-3 years I have seen a couple lone examples from more recent workings.  This was the largest single lot I have seen-- given how infrequently they were turning up, I was a bit surprised to come across so many-- and I'm posting all of them here.

Hutchinsonite is a sulfide of thallium, lead, and arsenic and is probably one of the few minerals containing thallium that you can actually find a decent specimen of.









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OMR03 Hutchinsonite
Quiruvilca Dist., Santiago de Chuco Prov., La Libertad Dept., Peru
8.4x 5.6x 1.5 cm
$0
OMR05 Hutchinsonite
Quiruvilca Dist., Santiago de Chuco Prov., La Libertad Dept., Peru
7.3x 2.6x 2.5 cm
$190
OMR07 Hutchinsonite
Quiruvilca Dist., Santiago de Chuco Prov., La Libertad Dept., Peru
3.4x 1.7x 1.0 cm
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