Publication details
Tourmaline from Věžná I pegmatite; an indicator of external contamination and internal fractionation
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| Year of publication | 2017 |
| Type | Appeared in Conference without Proceedings |
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| Description | Minerals of the tourmaline group are chemically very variable and therefore are good indicators of the degree of fractionation and pegmatite contamination. A typical example is the Věžná I locality. There were 6 types of tourmalines found in different zones of pegmatite. In the outer zones, Mg rich dravite predominates, replacing by schorl and foitite, and in the most fractionated parts by Mn and Li rich elbait and fluor-elbait. Tourmalines from more fractionated zones are secondary contaminated with Mg from the host serpentinite. |