Gratonite - image 1

Gratonite

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This well-crystallized sulphosalt thumbnail displays the extremely rare lead arsenic sulphide, Gratonite, from the area of its Type Locality - Cerro De Pasco, Peru. Described and named in 1939, the world's best crystals of Gratonite still come from Cerro De Pasco. Crystals never reach more than a few mm in length and usually coalesce as radiating aggregates, often detached from matrix as small sprays typically less than 1 cm in diameter. This small specimen displays several well-formed trigonal Gratonite crystals reaching 3 mm in length crowning a small piece of matrix mounted on an acrylic base for display. A couple of broken crystals are evident, but examples of this species are so difficult to obtain and the main crystals here are quite large.

Product details

SpeciesGratonite
SizeThumbnail
Dimensions1.2 x 1.0 x 1.7 cm
Added on03/19/2025
Current owner
Unknown Owner
Acquired 07/2026·Paid $400.00
Previous owners
DateCollectorAcquisition price
—Crystal ClassicsNot disclosed

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Gratonite
Mineral guide
Learn about Gratonite
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Gratonite
Regional guide
Gratonite from Cerro de Pasco
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Locality guide
Cerro de Pasco
Cerro de Pasco, Peru — a renowned Cordilleran polymetallic locality famed for green fluorite, pyrite, sphalerite, and rare sulfosalts, prized by collectors.