PYROMORPHITE

ABOUT THE SPECIMEN

French pyromorphite is one of those essential European classics. While Les Farges may claim greater fame, Saint-Salvy's specimens are celebrated for their uniquely elegant crystal habit. With numerous tufts of acicular crystals radiating outwards, the appearance is true to the mine in which this piece was born. As shown in the photos, the crystals show exceptional development and aesthetic appeal under magnification!

MORE INFO

The Saint-Salvy deposit sits within an east-west fault system flanking the late Variscan Sidobre granite in the southern Massif Central, and was worked industrially as one of France's most significant zinc producers - notably one of the world's more important germanium-bearing deposits - with galena present as a subordinate ore. Pyromorphite formed secondarily in the oxidized upper zone as descending groundwaters dissolved galena and reacted with phosphate sourced from apatite in the surrounding carbonaceous Cambrian schists, concentrating lead and phosphate ions at sites where pH conditions favored precipitation. What distinguishes Saint-Salvy pyromorphite from the better-known Les Farges material is the strongly acicular crystal habit - thin, needle-like hexagonal prisms arranged in radiating, chatoyant sprays and spheroidal bundles on dark slate matrix rather than the stout cavernous crystals typical of Corrèze. The color is a saturated lime to emerald green. Mining ceased in the late twentieth century, and while Saint-Salvy never achieved the name recognition of Les Farges internationally, its distinctive habit makes specimens immediately identifiable; fine examples are underrepresented in major collections relative to their quality.