Fact Sheet for <b>Occurence 3112

					Norsk versjon
	THE INDUSTRIAL MINERAL DATABASE
	Occurence 3112 - 304 Elvestad
	(Object Id: 8862) (Last updated: 08.01.2019)

Location

County:

Østfold

Municipality:

Råde (3112)

Map 1:50000:

Vannsjø (1913-4)

Map 1:250000:

Oslo

Coordinate system:

EU89-UTM Zone 32

(Coordinates NOT confirmed)

East:

604484 m.

North:

6580550 m.

Longitude:

10.8375070

Latitude:

59.3507480

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Resource

Resource Type:

Beryllium minerals

Resource Subtype:

Beryl

Importance

Raw material meaning:

Not Assessed (reg. 18.02.2015)

Mineralization

Genesis: Form:

Main texture: Min. distribution:

Main grain size:

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Plunge:

Stratigraphic classification of host rock

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Tectonic complex:

Igneous complex:

Group: Formation:

Bibliography:

From NGU's Reference Archive:

Oftedal, Ivar , 1970

Lithium contents of Norwegian beryls.

;Norsk geologisk forening;TIDSSKRIFTARTIKKEL;Norsk geologisk tidsskrift; No.50 (3);245-247 pages

Abstract:

About 60 beryl samples, nearly all from Precambrian granite pegmatites, were examined by optical spectrography. Li contents range from 0.07% to below 0.005%. One single sample showed as much as 0.2% Li. The variations are quite local; averages for the Østfold area and the Iveland-Evje area are nearly equal, about 0.025%. Cs contents in excess of 0.05% are recorded in a few cases only.

Bjørlykke, Harald , 1939

Feltspat V. De sjeldne mineraler på de norske granittiske pegmatittganger.

;Norges geologiske undersøkelse;TIDSSKRIFTARTIKKEL;NGU; No.154;1-78 pages

Abstract:

The present publication gives a short description of the most common rare elements of the Norwegian pegmatites and the Norwegian rare-element-bearing minerals. The rare-element-bearing minerals in the Norwegian granite pegmatites are: Uraninite (norw.: uranbekerts) (incl. brøggerite, cleveite, and uranniobit), chrysoberyl, thorite (incl. orangit), allanite (Norw.: ortitt), gadolinite, hellandite, titanite (sphen) and yttrotitanite (keilhauite), thortveitite, zircon (incl. alvite and cyrtholite), beryl, phenacite, fergusonite (incl. risørite), euxenite (incl. blomstrandine, polycrase and priorite), yttrotantalite, samarskite, columbite and tantalite, monazite, xenotime, ilmenorutile, microlite, betafite, scheteligite, rare-earth-bearing garnet, yttrofluorite, parisite and kainosite. According to their mode of formation the Norwegian granite pegmatites may be divided into two groups: the magmatic pegmatites and the pegmatites which are of hydrothermal-pneumatolytic origin. The mineral parageneses of the granite pegmatites in the different pegmatite areas show some characteristic features which indicate a different distribution of the rare elements.

	Genesis:		Form:
	Main texture:		Min. distribution:

	Province:
	Geotec.unit:
	Tectonic complex:
	Igneous complex:

	Abstract:
	About 60 beryl samples, nearly all from Precambrian granite pegmatites, were examined by optical spectrography. Li contents range from 0.07% to below 0.005%. One single sample showed as much as 0.2% Li. The variations are quite local; averages for the Østfold area and the Iveland-Evje area are nearly equal, about 0.025%. Cs contents in excess of 0.05% are recorded in a few cases only.