Wulfenite with Mimetite

specimen number:
2063288

location:
San Francisco Mine, Cucurpe, Sonora, Mexico

description:
A beautiful orange yellow grouping of thin platy lustrous tabular wulfenite crystals without matrix. Very little damage present, overall this is in really good condition for one of these. Brilliant orange balls of mimetite to 0.4 cm in size are scattered throughout. Very attractive and complete all around. The specimen comes with a previous label from the collection of Ray DeMark.

The San Francisco Mine, located near Cucurpe and Magdalena de Kino in Sonora, Mexico, is a historic underground mine originally opened in the late 19th century for gold, silver, and molybdenum production. Geologically, the deposit sits within complex regional fault and replacement systems where hydrothermal fluids interacted with host sedimentary and volcanic rocks, later undergoing extensive oxidation that created rich secondary mineral zones. Mineralogically, the mine achieved legendary international status during specialized specimen mining in the 1970s, when deep underground pockets yielded what many consider the world-class standard for wulfenite. These specimens are prized for their paper-thin, transparent, windowpane-like tabular crystals ranging from brilliant yellow to vivid orange, frequently found in stunning aesthetic combination with contrasting red or orange mimetite spherules.

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