Английская Википедия:Francolite
Материал из Онлайн справочника
Шаблон:Short description Шаблон:Infobox mineral
Francolite is a carbonate rich variety of the mineral fluorapatite[1] and is present in most sedimentary phosphorites. It has a variable chemical composition which can be represented by Шаблон:Chem2.[2] The mineral was named after its occurrence at Wheal Franco, Whitchurch, Tavistock District, Devon, England.[1]
References
Шаблон:Commons category Шаблон:Reflist
- ↑ 1,0 1,1 http://www.mindat.org/min-4910.html Mindat.org
- ↑ R. A. Benmore, M. L. Coleman, and J. M. McArthur, Origin of is sedimentary francolite from its sulphur and carbon isotope composition. Nature 302: 516, 1983 [1]