Fact Sheet for Deposit Area 135

					Norsk versjon
	THE INDUSTRIAL MINERAL DATABASE
	Deposit Area 135 - 304
	(Last updated 08.jan.2019)

Name of Deposit Area : Elvestad

(Object Id : 0135,304,00,00)

Location

County :

Østfold (01)

Municipality :

Råde (0135)

Map 1:50000:

Vannsjø (1913-4)

Map 1:250000:

Oslo

Marking point:

Longitude:

10.8375070

Latitude:

59.3507480

EU89-UTM Zone 32

(Coordinates NOT confirmed)

X-coord:

604484 m.

Y-coord:

6580550 m.

Commodity

Main Type:

Beryllium minerals

Sub Type:

Beryl

Importance

Public: Not Assessed (reg. 18.02.2015)

Economical: Not classified/evaluated

Mineralization

Era: Period:

Dating: Method:

Genesis: Form:

Main texture: Min. distribution:

Main grain size:

Strike/Dip: Direction:

Plunge:

Stratigraphic classification of host rock

Era: Period:

Province:

Geotec.unit:

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.

	Era:		Period:
	Dating:		Method:
	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.