Fibrous foitite from Sebinkarahisar, Giresun Pb-Zn-Cu-(U) mineralized area, northern Turkey
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Date
1999
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
MINERALOGICAL ASSOC CANADA
Access Rights
info:eu-repo/semantics/closedAccess
Abstract
Fibrous foitite occurs in cavities in quartz Veins near Sebinkarahisar town, Giresun mineralized area [Pb-Zn-Cu-(U)], in northern Turkey. Veins of quartz + fibrous tourmaline generally cut monzonitic and syenitic rocks. Acicular and hairlike light gray crystals of foitite have a mean composition of square(0.43)Na(0.52)Ca(0.07), (Fe1.55Mn0.08Mg0.52Al0.67Ti0.01) Al-6 (BO3)(3) Si-6 O-18 (OH,O)(3) (OH)(1). The crystals of this low-temperature tourmaline radiate from irregular patches of schorl in cavities in quartz veins. Each fiber is zoned along its length with respect to Fe, Mn, Mg, Ca, Na, K, and P. The fibrous foitite from the Sebinkarahisar area contains higher Mg, Ca and Na contents than that from southern California and Elba.
Description
Keywords
foitite, tourmaline, fibers, alkali-deficient, cavity, quartz vein, Pb-Zn-Cu-(U) mineralization, Sebinkarahisar, northern Turkey
Journal or Series
CANADIAN MINERALOGIST
WoS Q Value
Q2
Scopus Q Value
Q3
Volume
37
