Chiavennite from syenite pegmatites in the Oslo region, Norway

Chiavennite from syenite pegmatites in the Oslo region, Norway

Chemical analysis and TGA give a formula very close to CaMnBe2Si5O13(OH)2·2H2O. The mineral is orthorhombic, a 8.866(7), b 31.34(2), c 4.787(3) angstrom, Z = 4.—Modified journal abstract.

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Bibliographische Detailangaben
Veröffentlicht in:The American mineralogist 1983-06, Vol.68 (5-6), p.628-633
Hauptverfasser: Raade, Gunnar, Åmli, Reidar, Mladeck, Micael H, Din, Victor K, Larsen, Alf Olav, Åsheim, Arne
Format: Artikel
Sprache:eng
Schlagworte:
chemical composition
chiavennite
Europe
formula
granites
igneous rocks
mineral data
mineralogy
minerals
Norway
Oslo region
paragenesis
pegmatite
physical properties
plutonic rocks
Scandinavia
SEM data
silicates
Southern Norway
syenite pegmatite
TGA data
Western Europe
X-ray data
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Beschreibung
Zusammenfassung:Chemical analysis and TGA give a formula very close to CaMnBe2Si5O13(OH)2·2H2O. The mineral is orthorhombic, a 8.866(7), b 31.34(2), c 4.787(3) angstrom, Z = 4.—Modified journal abstract.
ISSN:0003-004X
1945-3027