Hydrothermal laumontite from the Strzelin granitoids

Authors

  • Marek Stępisiewicz

Abstract

Laumontite occurring in post-magmatic veins in the StrzeIin granitoids, Lower Silesia (southern Poland), as it is evidenced by its physical and optical properties, chemical composition and crystallochemical formula, as well as by the X-ray; powder patterns, DTA curve, IR absorption spectrum, and studies of fluid inclusions in associated quartz, originated jointly with associated minerals at the temperature range 340-175°C under the pressure lower than 730 ± 70 bars from diluted CO2-bearing hydrothermal solutions. Full succession of the minerals in laumonite-bearing veins from the Strzelin granitoids is subsequently presented.

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