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INDUSTRIMINERALDATABASEN
Forekomstområde 928 - 317
(Sist oppdatert 27.apr.2007)

Navn på deposit area : Bjortjern
(Objekt Id : 0928,317,00,00)

Lokalisering
Fylke : Aust-Agder (09) Kommune : Birkenes (0928)
Kart 1:50000: Mykland (1512-2) Kart 1:250000: Arendal
Markeringspunkt: Lengdegrad: 8.3630790 Breddegrad: 58.5371570
EU89-UTM Zone 32 (Coordinates NOT confirmed)
X-koord: 462917 m. Y-koord: 6488691 m.

Materialtype
Hovedtype: Feltspat Subtype: Pegmatittisk feltspat

Betydning
Offentlig: Not Assessed (reg. 18.02.2015)
Economical: Ikke vurdert

Products
Element/product Crude ore grade or quality
PEGFEL %

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:

Fieldsamples
Sample No. Sample type Miscellanrous
P055.06 Hand specimen
Sampler :Peter Ihlen/...Stored :Løkken
Kommentar :Like utenfor brudd i liten dal. Massiv røkkvarts
No. of registrated mineral analyses = 1
P055.09 Hand specimen
Sampler :Peter Ihlen/...Stored :Løkken
Kommentar :. Røkkvarts sammenv. med litt alkalifeltspat
No. of registrated mineral analyses = 1
P055.22 Hand specimen
Sampler :Peter Ihlen/...Stored :Løkken
Kommentar :Massiv røkkvarts
No. of registrated mineral analyses = 1
P055.25 Hand specimen
Sampler :Peter Ihlen/...Stored :Løkken
Kommentar :Massiv røkkvarts
No. of registrated mineral analyses = 1
055,GK Hand specimen
Sampler :Peter Ihlen/...Stored :Løkken
Kommentar :Kremfarget K-feltspat
No. of registrated oxide analyses = 1
055,GK2 Hand specimen
Sampler :Peter Ihlen/...Stored :Løkken
Kommentar :Brunlig rosa forvitret plagioklas
No. of registrated oxide analyses = 1
055,GP Hand specimen
Sampler :Peter Ihlen/...Stored :Løkken
Kommentar :Matriks av intimt sammenv. plag. og kvarts
No. of registrated oxide analyses = 1
055,01 Hand specimen
Sampler :Peter Ihlen/...Stored :Løkken
Kommentar :Blek rosa K-feltspat fra tippen av bruddet
No. of registrated oxide analyses = 1
055,05 Hand specimen
Sampler :Peter Ihlen/...Stored :Løkken
Kommentar :Rosa K-feltsp. med et par tynne røkkv. striper
No. of registrated oxide analyses = 1
055,08 Hand specimen
Sampler :Peter Ihlen/...Stored :Løkken
Kommentar :Ren blek rosa K-feltspat
No. of registrated oxide analyses = 1
055,10 Hand specimen
Sampler :Peter Ihlen/...Stored :Løkken
Kommentar :Plag. sammenv. med røkkvarts-biotitt aggregat
No. of registrated oxide analyses = 1
055,11 Hand specimen
Sampler :Peter Ihlen/...Stored :Løkken
Kommentar :Ren blek rosa K-feltspat
No. of registrated oxide analyses = 1
055,13 Hand specimen
Sampler :Peter Ihlen/...Stored :Løkken
Kommentar :Intimt sammenv. plag. og kvarts med litt biotitt
No. of registrated oxide analyses = 1
055,14 Hand specimen
Sampler :Peter Ihlen/...Stored :Løkken
Kommentar :Rosa K-feltspat sammenv. med litt kv. og bio.
No. of registrated oxide analyses = 1
055,16 Hand specimen
Sampler :Peter Ihlen/...Stored :Løkken
Kommentar :Ren plagioklas
No. of registrated oxide analyses = 1
055,17 Hand specimen
Sampler :Peter Ihlen/...Stored :Løkken
Kommentar :Ren rosa K-feltspat
No. of registrated oxide analyses = 1
055,19 Hand specimen
Sampler :Peter Ihlen/...Stored :Løkken
Kommentar :Rosa K-feltspat sammenv. med en del kvarts
No. of registrated oxide analyses = 1
055,21 Hand specimen
Sampler :Peter Ihlen/...Stored :Løkken
Kommentar :Rosa K-feltspat med ørlite kvarts
No. of registrated oxide analyses = 1
055,23 Hand specimen
Sampler :Peter Ihlen/...Stored :Løkken
Kommentar :Plag. sammenv. med kv. Rosa forv.flekker
No. of registrated oxide analyses = 1
055,24 Hand specimen
Sampler :Peter Ihlen/...Stored :Løkken
Kommentar :Rosa K-feltspat med grovk. grafisk kvarts
No. of registrated mineral analyses = 1
No. of registrated oxide analyses = 1
NB! All analyse values are shown at the end of the printout.:


Analyse Results
from
Forekomstområde 928 - 317 Bjortjern

Mineral analyses

( All values are in ppm. Negative values means below detection limit value.)
Sample No. Sample Type Mineral Li Be Na
P055.06 Hand specimen Quartz 8.466 .157
P055.09 Hand specimen Quartz 6.971 .036
P055.22 Hand specimen Quartz 16.989 .112
P055.25 Hand specimen Quartz 17.905 .061
055,24 Hand specimen Potassic feldspar 8123.145
------------------
Sample No. Mg Al Si P K Ca Ti Mn Fe
P055.06 60.946 15.954 -5.300 6.659 2.859 -2.600
P055.09 22.819 39.024 -5.300 3.969 -.120 -2.600
P055.22 26.705 15.184 -5.300 10.138 -.120 -2.600
P055.25 32.565 7.086 3.511 9.252 -.120 -2.600
055,24 96.479 53868.094 306714.045 55617.814 488.440 11.993 139.870
------------------
Sample No. Ge
P055.06 1.038
P055.09 .109
P055.22 .796
P055.25 .715
055,24

Oxide analyses

( All values are in % )
Sample No. Sample Type SiO2 Al2O3 TiO2 Fe2O3 MgO CaO Na2O
055,GK Hand specimen 65.90 18.30 0.00 0.04 0.01 0.07 2.08
055,GK2 Hand specimen 66.30 21.70 0.00 0.06 0.02 3.08 9.07
055,GP Hand specimen 79.40 14.10 0.00 0.09 0.02 1.84 5.55
055,01 Hand specimen 73.90 14.70 0.00 0.07 0.02 0.08 1.68
055,05 Hand specimen 65.40 18.20 0.00 0.04 0.01 0.06 2.22
055,08 Hand specimen 64.80 18.50 0.00 0.05 0.01 0.20 2.13
055,10 Hand specimen 68.50 20.50 0.00 0.09 0.06 4.32 6.97
055,11 Hand specimen 65.30 18.40 0.00 0.03 0.01 0.13 2.07
055,13 Hand specimen 70.40 19.20 0.01 0.09 0.04 2.69 7.97
055,14 Hand specimen 68.50 17.30 0.00 0.07 0.03 0.25 3.20
055,16 Hand specimen 70.00 19.40 0.00 0.17 0.03 2.48 8.18
055,17 Hand specimen 65.30 18.20 0.00 0.06 0.03 0.05 1.83
055,19 Hand specimen 70.60 15.90 0.00 0.06 0.03 0.07 1.71
055,21 Hand specimen 65.60 18.30 0.00 0.07 0.02 0.09 2.24
055,23 Hand specimen 67.40 20.90 0.00 0.10 0.04 2.82 8.72
055,24 Hand specimen 65.60 18.30 0.00 0.04 0.02 0.06 2.19
------------------
Sample No. K2O Sum
055,GK 13.43 100.00
055,GK2 0.60 101.00
055,GP 0.58 102.00
055,01 10.16 101.00
055,05 13.19 99.00
055,08 13.16 99.00
055,10 0.38 101.00
055,11 13.54 99.00
055,13 0.48 101.00
055,14 10.11 99.00
055,16 0.59 101.00
055,17 13.84 99.00
055,19 11.38 100.00
055,21 13.12 99.00
055,23 0.61 101.00
055,24 13.40 100.00


Faktaarket ble generert 13.06.2026

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