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	THE ORE DATABASE
	Deposit Area 1640 - 008
	(Last updated 19.aug.2020)

Importance

Public:

Little Importance (reg. 18.02.2015)

Economical:

Minor interest

Mineralization

	Era:		Period:
	Dating:		Method:
	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

Det er en rekke mindre gruver/skjerp tilknyttet serpentinittkroppen på Gråberget. Hovedgruva er en ca. 10 m lang, flattliggende stoll i ØNØ retning. Her er det omlag 350 kbm tipp på utsiden. Materialet her inneholder av årer og slirer med kromitt i serpentinitt.

Photo(s) from the Deposit area:

Photo no. 1 showing Gruve med tipp (mot øst)"

Fieldsamples

	Sample No.	Sample type	Miscellanrous
	GRÅBERGET-2	Dump	Sampler :T. Bjerkgård Comment :Collection of pieces with chromite from the dump

Name of Locality : Gruve 2

(Object Id : 1640,008,01,00)

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Location

County :

Sør-Trøndelag (16)

Municipality :

Røros (1640)

Map 1:50000:

Røros (1720-3)

Map 1:250000:

Røros

Marking point:

Longitude:

11.4816910

Latitude:

62.5446460

EU89-UTM Zone 32

(Coordinates IS confirmed)

X-coord:

627634 m.

Y-coord:

6937310 m.

Commodity

	Main Type:	Ferroalloys (Cr,Ni,Co,V,Mo,W)	Sub Type:	Chromium
			Element(s):	Cr

Production

	Activity:	Test mining	Reserves:
	Prod. method:		Production:
	Prod. status:		Volume of dump:	350 m3

Information(s) in free text format

Free text

Stoll ca. 10 m lang, drevet med helning mot VSV og vannfylt i bunnen. ca. 350 kbm tipp. Kromitt opptrer i "nyrer" og slirer i serpentinitt på tipphaugen. Det er et lite skjerp 15 m mot sør.

Photo(s) from the Deposit area:

Photo no. 1 showing Gruve 2, stoll" Photo no. 2 showing Stuff med kromitt" Photo no. 3 showing Kromittmineralisering"

Fieldsamples

	Sample No.	Sample type	Miscellanrous
	GRÅBERGET-1	Dump	Sampler :T. Bjerkgård Comment :Massive chromite ore in serpentinite

Name of Locality : Skjerp 1

(Object Id : 1640,008,02,00)

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Location

County :

Sør-Trøndelag (16)

Municipality :

Røros (1640)

Map 1:50000:

Røros (1720-3)

Map 1:250000:

Røros

Marking point:

Longitude:

11.4798240

Latitude:

62.5444090

EU89-UTM Zone 32

(Coordinates IS confirmed)

X-coord:

627540 m.

Y-coord:

6937279 m.

Commodity

	Main Type:	Ferroalloys (Cr,Ni,Co,V,Mo,W)	Sub Type:	Chromium
			Element(s):	Cr

Production

	Activity:	Pitting	Reserves:
	Prod. method:		Production:
	Prod. status:		Volume of dump:	100 m3

Information(s) in free text format

Free text

Vannfylt synk/grop 3x3 m i diameter, noen små steiner med kromitt på tipphaugen.

Name of Locality : Skjerp 2

(Object Id : 1640,008,03,00)

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Location

County :

Sør-Trøndelag (16)

Municipality :

Røros (1640)

Map 1:50000:

Røros (1720-3)

Map 1:250000:

Røros

Marking point:

Longitude:

11.4886390

Latitude:

62.5451510

EU89-UTM Zone 32

(Coordinates IS confirmed)

X-coord:

627990 m.

Y-coord:

6937380 m.

Commodity

	Main Type:	Ferroalloys (Cr,Ni,Co,V,Mo,W)	Sub Type:	Chromium
			Element(s):	Cr

Production

	Activity:	Pitting	Reserves:
	Prod. method:		Production:
	Prod. status:		Volume of dump:

Information(s) in free text format

Free text

To mindre røsker med 25 m avstand i SV-NØ retning. Koordinat på den største (i SV). Tynne slirer med kromitt, dels "edel" serpentin i tynne sjikt. Pseudokonglomeratisk tekstur på fjelloverflaten ved røskene.

Photo(s) from the Deposit area:

Photo no. 1 showing Skjerp (mot SV)" Photo no. 2 showing Bergartsflate"

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The fact sheet was created on 19.05.2024

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

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