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THE NATURAL STONE DATABASE
Occurence 4214 - 606 Mjåvatn II
(Object Id: 18124)
(Last updated: 08.07.2021)

Location
County: Agder Municipality: Froland (4214)
Map 1:50000: Arendal (1611-4) Map 1:250000: Arendal
Coordinate system: EU89-UTM Zone 32
East: 468539 m. North: 6487641 m.
Longitude: 8.4597670 Latitude: 58.5281620
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Resource
Resource Type: Sandstone and conglomerate Resource Subtype: Quartzite
Brickstone(Y/N): Y
Importance
Raw material meaning: Not Assessed (reg. 21.03.2017)
Historical: No , (Confirmed 20.nov.2009 by Leif Furuhaug)

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


Products
Commercial Name Product description
Murestein/heller Classification: Dry-wall stone Colour: Grayish
Play of colours : Uniformity: Medium good
Lithology: Quartzrich flagstone Grain size: Medium grained (1-3 mm)

Mineralogy:
Feldspar Major mineral (>10%)
Quartz Major mineral (>10%)
Mica Subordinate mineral (1-10%)

Deposit rock
Lithology: Quartzrich flagstone Weathering colour:
Era: Proterozoic Period:
Genesis: Sedimentary/metamorphic Form: Layer
Main texture: Foliated
Main grain size: Main alteration:
Strike/Dip: Direction:
Plunge:
Stratigraphic classification of host rock
Era: Proterozoic Period:
Province: South Norwegian Basement Province
Geotec.unit:
Tectonic complex:
Igneous complex:
Group: Formation:

Structures
Location: Type: Orientation(360 gr.): Relation to min.:
Not defined Schistosity Strike/Dip :20 / 85

Information(s) in free text format
Description
Geologisk er forekomsten ganske lik Mjåvatn I: Muresteinsproduksjon av en spaltbar, steiltstående lys beige sandstein. Hovedbruddet ligger tett inntil bebyggelse som nok vil være til hinder for videre drift. Bruddet er lite, og med begrensede muligheter for utvidelse.
Location
Bruddet ligger på begge sider av veien mellom Øynaheia/Herefoss og Mjåvatn, ca 2 km fra krysset med RV 42.

Photo(s) from the Deposit area:
Photo no. 1 showing Et mindre brudd"
Photo no. 2 showing Hovedbruddet"


The fact sheet was created on 02.05.2024

Questions or comments regarding the fact sheet can be emailed to:
ressursdatabaser@ngu.no
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