Norsk versjon
THE ORE DATABASE
Occurence 3303 - 023 Concordia gruve
(Object Id: 6069)
(Last updated: 31.03.2005)
Belongs to the Province: Underberget
Location
County: Buskerud Municipality: Kongsberg (3303)
Map 1:50000: Kongsberg (1714-2) Map 1:250000: Skien
Coordinate system: EU89-UTM Zone 32
East: 534214 m. North: 6614588 m.
Longitude: 9.6073320 Latitude: 59.6679430
Show on map
Resource
Resource Type: Precious metals (Au,Ag,PGE) Resource Subtype: Silver
Element(s): Ag
Importance
Raw material meaning: Little Importance (reg. 18.02.2015)

Resources and production
Activity: Mining Reserves:
Operating method: Underground mining Historical production:


Mineralization
Genesis: Form:
Main texture: Min. distribution:
Main grain size: Main alteration:
Strike/Dip: Direction:
Plunge:
Stratigraphic classification of host rock
Era: Period:
Province:
Geotec.unit:
Tectonic complex:
Igneous complex:
Group: Formation:

Information(s) in free text format
Free text
Alt i 1676 og 1747 ble Concordia gruver omtalt, men gruvene kom ikke i reell drift før omkring 1750 og var i drift til utpå 1800-tallet.

Bibliography:
From NGU's Reference Archive:
Bugge, Arne , 1930
Rapport over Kongsberg Sølvverks Gruber. Overberget og underberget.
;Norges geologiske undersøkelse;FAGRAPPORT;Bergarkivet; No.BA 3244;213 pages
Abstract:
Utredningen om tahlbåndene og gangene i Kongsbergfeltet og om gruvene på Underberget og Overberget er basert på Sølverkets gamle og nye litteratur, de foreliggende geologiske detaljkarter og de som undertegnede utarbeidet i tiden 1921 - 1929. I beskrivelsen av gruvene har undertegnede forsøkt å gi en oversikt over hver enkelt gruves historie, verdi og fremtidsmuligheter.

Name of Locality: 1
(Object Id: 19712 23,01,00)
Location
County: Buskerud Municipality: Kongsberg (3303)
Map 1:50000: Kongsberg (1714-2) Map 1:250000: Skien
Coordinate system: EU89-UTM Zone 32
East: 534203 m. North: 6614617 m.
Longitude: 9.6071560 Latitude: 59.6682070
Show on map
Resource
Resource Type: Precious metals (Au,Ag,PGE) Resource Subtype: Silver
Element(s): Ag


Name of Locality: 2
(Object Id: 19713 23,02,00)
Location
County: Buskerud Municipality: Kongsberg (3303)
Map 1:50000: Kongsberg (1714-2) Map 1:250000: Skien
Coordinate system: EU89-UTM Zone 32
East: 534216 m. North: 6614567 m.
Longitude: 9.6073750 Latitude: 59.6677550
Show on map
Resource
Resource Type: Precious metals (Au,Ag,PGE) Resource Subtype: Silver
Element(s): Ag


Fieldsamples
Sample No. Sample type Miscellanrous
JSA_30 Bedrock
Sampler: J.S. Sandstad
Comment: Quartz-feldspar gneis (fahlband), some muscovite and biotite, weak pyrite diss. (from the pit)
No. of registrated element analyses = 1
JSA_31 Bedrock
Sampler: J.S. Sandstad
Comment: Quartz-feldspar gneis (fahlband),few muscovite and biotite, weak pyrite diss. (hanging wall, W of pit)
No. of registrated element analyses = 1
NB! All analyse values are shown at the end of the printout.:

Name of Locality: 3
(Object Id: 19714 23,03,00)
Location
County: Buskerud Municipality: Kongsberg (3303)
Map 1:50000: Kongsberg (1714-2) Map 1:250000: Skien
Coordinate system: EU89-UTM Zone 32
East: 534317 m. North: 6614687 m.
Longitude: 9.6091760 Latitude: 59.6688260
Show on map
Resource
Resource Type: Precious metals (Au,Ag,PGE) Resource Subtype: Silver
Element(s): Ag


Name of Locality: 4
(Object Id: 19715 23,04,00)
Location
County: Buskerud Municipality: Kongsberg (3303)
Map 1:50000: Kongsberg (1714-2) Map 1:250000: Skien
Coordinate system: EU89-UTM Zone 32
East: 534333 m. North: 6614661 m.
Longitude: 9.6094700 Latitude: 59.6685940
Show on map
Resource
Resource Type: Precious metals (Au,Ag,PGE) Resource Subtype: Silver
Element(s): Ag


Analyse Results
from
Deposit Area 3303 - 023 Concordia gruve

Element analyses
( *=parts pr. million, #=parts pr.billion, Negative values means below detection limit value.)
Sample No. Sample Type Cu* Zn* Pb* Co* Ni* Ag* Au#
JSA_30 Bedrock 216 393 580 7 7 2.1 6.0
JSA_31 Bedrock 90 70 5 6 4 1.0 -5.0
------------------
Sample No. As* Cd* Ba* Mo* Sn* Sb* Bi* Se* Ga*
JSA_30 47 5.7 1400 2.00 2 1 -1 2.00 14.00
JSA_31 16 .2 2750 -1.00 2 -1 -1 1.00 15.00
------------------
Sample No. Ge* In* V* Cr* Mn* Fe% Th* U* W*
JSA_30 -1.00 -1.00 25 574 392 3.94 2.00 -1.00 -1
JSA_31 -1.00 -1.00 19 311 543 4.22 3.00 -1.00 1
------------------
Sample No. P* Sc* Ti* Te* Hf*
JSA_30 360 15.00 1510 -1.00 1.00
JSA_31 410 17.00 1570 -1.00 1.00

The fact sheet was created on 06.11.2025
Questions or comments regarding the fact sheet can be emailed to:
ressursdatabaser@ngu.no
Copyright © 2025 Geological Survey of Norway