1970s 'Quartz Cross' on Sphalerite — Quiruvilca Mine, Peru

A preserved relic of Andean mineral history. This exceptional specimen from the world-renowned Quiruvilca Mine in Peru features two pristine Quartz crystals perfectly aligned in a rare, natural cross formation. Resting on a high-contrast matrix of metallic grey Sphalerite and glittering Iron Pyrite, the piece is a masterclass in geometric aesthetic. Sourced from a prestigious UK collection and originally unearthed in the 1970s, this specimen carries over five decades of provenance. We selected it for its unusual crystallography and its status as a quintessential 'Old Stock' treasure from one of the world's most enduring and significant mining districts.

SPECIMEN DETAILS
Mineralogy: Quartz (Cross Habit) on Sphalerite & Pyrite
Dimensions: 6.3 x 4.8 x 3.5 cm (2.5 x 1.9 x 1.4 inches)
Weight: 129g (4.5 oz)
Provenance: The Richard Valentine Cain Collection (London, UK)
Chronology: Acquired on the UK market circa 1970; thence by descent.
Locality: Quiruvilca Mine, Santiago de Chuco Province, Peru

Provenance & Heritage

This specimen is accompanied by a pedigree of exceptional rarity. It originates from the historic mineral collection of Richard Valentine Cain of London, a prominent figure in the mid-century UK collecting scene. Following its acquisition in 1970, the piece remained a treasured family heirloom for decades, passed down by descent until its arrival at Gatsby Gems. To own this specimen is to hold a documented link to the golden age of 20th-century mineral collecting. The original vintage provenance labels will be included with the purchase to ensure this history is preserved for the next generation.