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THE INDUSTRIAL MINERAL DATABASE
Occurence 4214 - 387 Heidalstjern
(Object Id: 16149)
(Last updated: 27.04.2007)
Location
County: Agder Municipality: Froland (4214)
Map 1:50000: Nelaug (1612-3) Map 1:250000: Arendal
Coordinate system: EU89-UTM Zone 32
East: 470899 m. North: 6498319 m.
Longitude: 8.4989380 Latitude: 58.6242320
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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: Mining Reserves:
Operating method: Open pit mining Historical production:


Mineralization
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:

Fieldsamples
Sample No. Sample type Miscellanrous
065.01 Hand specimen
Sampler: Peter Ihlen/...Stored: Løkken
Comment: Ren, overflateforvitret rød K-feltspat
No. of registrated oxide analyses = 1
065.04 Hand specimen
Sampler: Peter Ihlen/...Stored: Løkken
Comment: Ren, overflateforvitret plagioklas
No. of registrated oxide analyses = 1
065.06 Hand specimen
Sampler: Peter Ihlen/...Stored: Løkken
Comment: Ren rød K-feltspat
No. of registrated oxide analyses = 1
NB! All analyse values are shown at the end of the printout.:

Analyse Results
from
Deposit Area 4214 - 387 Heidalstjern

Oxide analyses
( All values are in % )
Sample No. Sample Type SiO2 Al2O3 TiO2 Fe2O3 MgO CaO Na2O
065.01 Hand specimen 65.20 18.30 0.00 0.06 0.02 0.06 1.75
065.04 Hand specimen 68.90 20.20 0.00 0.08 0.09 0.16 10.92
065.06 Hand specimen 75.60 14.24 0.00 0.13 0.02 0.08 4.40
------------------
Sample No. K2O Sum
065.01 14.00 99.00
065.04 1.13 101.00
065.06 5.76 100.00

The fact sheet was created on 06.05.2024
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