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Morinite from Gunheath China Clay Pit, St Austell, Cornwall

Published online by Cambridge University Press:  05 July 2018

N. J. Elton ,
J.J. Hooper  and
L. Coggon
N. J. Elton
Affiliation:
Tregears, Little Treviscoe, St Austell, Cornwall PL26 7QL, UK
J.J. Hooper
Affiliation:
48 St Julitta, Luxulyan, Bodmin, Cornwall PL30 5ED, UK
L. Coggon
Affiliation:
2 Anjardyn Place, Tywardreath, Par, Cornwall PL24 2PJ, UK
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Extract

Morinite, NaCa2A12(PO4)2(OH)F4.2H2O, is a lowtemperature hydrothermal phosphate found in granite and granite-pegmatite environments. It was first described by Lacroix in 1891 from Montebras, France (see Palache et al., 1951) where it occurred as rose coloured prismatic crystals with amblygonite, wardite, wavellite, apatite and cassiterite. Morinite is also known from Germany, Finland (Roberts et al., 1990) and the USA (Fisher and Runner, 1958; Fisher, 1960).

Keywords

moriniteGunheathCornwall
Type
Short Communications
Information
Mineralogical Magazine , Volume 60 , Issue 400 , June 1996 , pp. 517 - 518
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1996

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References

Fisher, D.J. (1960) Amer. Mineral., 45, 645—67.Google Scholar
Fisher, D.J. (1962) Amer. Mineral, 47, 398-400.Google Scholar
Fisher, D.J. and Runner, JJ. (1958) Amer. Mineral., 43, 585-94.Google Scholar
Hawthorne, F.C. (1979) Can. Mineral., 17, 93—102.Google Scholar
Palache, C., Berman, H. and Frondel, C. (1951) Dana's System of Mineralogy, 7th edn, Vol II. Wiley, New York.Google Scholar
Roberts, W.L., Campbell, T.J. and Rapp, G.R. Jr. (1990) Encyclopedia of Minerals Van Nostrand Reinhold, New York.Google Scholar