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THE INDUSTRIAL MINERAL DATABASE
Occurence 3314 - 309 Smebrua
(Object Id: 19155)
(Last updated: 08.02.2012)
Location
County: Buskerud Municipality: Øvre Eiker (3314)
Map 1:50000: Kongsberg (1714-2) Map 1:250000:
Coordinate system: EU89-UTM Zone 32
East: 539524 m. North: 6616124 m.
Longitude: 9.7018810 Latitude: 59.6812710
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Resource
Resource Type: Feldspar Resource Subtype: Pegmatitic feldspar

Importance
Raw material meaning: Little Importance (reg. 18.02.2015)

Resources and production
Activity: Test mining Reserves:
Operating method: Open pit mining Historical production:


Mineralization
Era: Paleozoic Period: Permian
Genesis: Pegmatite formation Form: Lens
Main texture: Min. distribution: Massive (>50 % ore minerals)
Main grain size: Coarse grained (> 3 mm)
Strike/Dip: Direction:
Plunge:
Stratigraphic classification of host rock
Era: Proterozoic Period: Mesoproterozoic
Province: South Norwegian Basement Province
Geotec.unit: Kongsberg Complex
Tectonic complex:
Igneous complex:
Group: Formation:

Mineralogy
Mineral Amount
Feldspar Major mineral (50-90%)
Quartz Major mineral (10-50%)
Mica Subordinate mineral (1-10%)

Information(s) in free text format
Free text
Forekomsten befinner seg ca. 300 m VNV for Smebrua over Fiskumelva. Det er lett atkomst via gårdsvei. Det er drevet et lite brudd ca. 10x20 m stort og inntil 3 m dypt. Både Na-spatt og K-spatt pluss litt glimmer. Trolig drevet på feltspat. Kvarts i andel på under 50%. Det ble tatt to kvartsprøver fra fastfjell.

Photo(s) from the Deposit area:
Photo no. 1 showing Pegmatittbruddet mot vest"
Photo no. 2 showing Bruddet mot nord"
Photo no. 3 showing Blotning"

The fact sheet was created on 25.04.2024
Questions or comments regarding the fact sheet can be emailed to:
ressursdatabaser@ngu.no
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