Fluorite and related fluids in the Karkonosze granitoid pluton, SW Poland

Fluorite mineralization was studied in the Variscan granitoid Karkonosze pluton northern part of the Bohemian massif (Lower Silesia, Poland). Fluid inclusions fluorite and quartz were investigated by following methods: heating freezing on an immersion microscope stage, spectrophotometric electron probe analysis, calcination water leachate. The parent fluids Na-Ca-Cl type with a low CO₂ content. fluoride ions had sources its host rocks. inclusion observations provide evidence various post-formation alteration. such as refilling, partition, cracking, migration, expulsion or vacuole modification from irregular to cubic habit. A final model origin fluid evolution is presented.