History · Geology
About Trimouns Talc Mine
The Trimouns talc mine near Luzenac in the Ariège Pyrenees, southern France, is one of the world’s largest talc producers and a globally significant collector locality for clinozoisite, dolomite-talc paragenesis, and rare alpine-cleft species. Active since 1905, it remains operational.
Geology
The deposit is a hydrothermal-metasomatic talc body formed by Mg-rich fluid alteration of Cretaceous-Triassic carbonate-pelite sequences during Alpine compression. Late-stage hydrothermal pockets produce gem clinozoisite and other species.
Notable Minerals
Talc (massive industrial-grade and collector-grade scaly aggregates), dolomite (gem rhombohedral crystals), clinozoisite (gem-clear pink to colorless prismatic crystals — world-class), epidote, dravite tourmaline, rutile, quartz, muscovite, magnetite. Trimouns clinozoisite is the species’ modern collector standard.
Collector Notes
Trimouns gem clinozoisite on dolomite/talc matrix is uniquely beautiful — pink-to-colorless prismatic crystals in pristine snow-white matrix. Active extraction continues through controlled mining contracts.
Minerals Produced Here
- Agate (玛瑙)
- Amethyst (紫水晶)
- Chalcedony (玉髓)
- Citrine (黄水晶)
- Clinozoisite (斜黝帘石)
- Dolomite (白云石)
- Dravite (镁电气石)
- Epidote (绿帘石)
- Jasper (碧玉)
- Magnetite (磁铁矿)
- Muscovite (白云母)
- Quartz (石英 / 水晶)
- Rose Quartz (玫瑰石英)
- Rutile (金红石)
- Talc (滑石)
