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Oftedal, Ivar (1972) Calcium-rich gadolinite from Kragerø. Contributions to the mineralogy of Norway, no. 48. Norsk Geologisk Tidsskrift [Norwegian Journal of Geology], 52 (2) 197-200

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Reference TypeJournal (article/letter/editorial)
Access RightsOpen Access
TitleCalcium-rich gadolinite from Kragerø. Contributions to the mineralogy of Norway, no. 48
JournalNorsk Geologisk Tidsskrift
[Norwegian Journal of Geology]
ISBN 0029-196X
AuthorsOftedal, IvarAuthor
Year1972Volume52
Page(s)197-200Issue2
PublisherNorsk Geologisk Forening (Geological Society of Norway)
URL
Download URLhttps://njg.geologi.no/images/NJG_articles/NGT_52_2_197-200.pdf+
Classification
Not set
LoC
Not set
Mindat Ref. ID16668076Long-form Identifiermindat:1:5:16668076:8
GUID043e27c4-1bd3-4e6a-ae20-332709223199
Full ReferenceOftedal, Ivar (1972) Calcium-rich gadolinite from Kragerø. Contributions to the mineralogy of Norway, no. 48. Norsk Geologisk Tidsskrift [Norwegian Journal of Geology], 52 (2) 197-200
Plain TextOftedal, Ivar (1972) Calcium-rich gadolinite from Kragerø. Contributions to the mineralogy of Norway, no. 48. Norsk Geologisk Tidsskrift [Norwegian Journal of Geology], 52 (2) 197-200
In(1972) Norsk Geologisk Tidsskrift [Norwegian Journal of Geology] Vol. 52 (2) Norsk Geologisk Forening (Geological Society of Norway)
Abstract/NotesA brown gadolinite crystal from granite pegmatite at Lindvikskollen appears to consist of more and less calcium-rich members of a series RE2(Ca, Fe)Be2Si2O10· lts properties agree well with those of ordinary gadolinite, with the following notable exceptions: The spacings are on the average slightly larger, the birefringence is lower than 0.01, and the mean refractive index is 1.665 ± 0.005.

Map of Localities

Locality Pages

LocalityCitation Details
Kalstadgangen, Lindvikskollen-Kalstadgangen pegmatite, Kragerø, Telemark, Norway

Mineral Occurrences

LocalityMineral(s)
Kalstadgangen, Lindvikskollen-Kalstadgangen pegmatite, Kragerø, Telemark, Norway Gadolinite, Pegmatite, Perthite


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