Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Chlorite Group from
Tinfoss Jernverks Quartz Quarry, Lake Heddal, Notodden, Telemark, Norway


Locality type:Quarry
Classification
Species:'Chlorite Group' (not an IMA approved species)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Chlorite Group data
Locality Data:Click here to view Tinfoss Jernverks Quartz Quarry, Lake Heddal, Notodden, Telemark, Norway
Data Identifiers
Mindat Occurrence Record ID:88456
Long-form Identifier:1:3:88456:3
GUID (UUID V4):0
Nearest other occurrences of Chlorite Group
19.2km (11.9 miles) ⓘKopparvollane Mine, Kongsberg, Buskerud, Norway
19.2km (11.9 miles) ⓘGott Vermags Mine, Kongsberg, Buskerud, Norway
19.6km (12.2 miles) ⓘVerlorne Sohn Mine, Kongsberg, Buskerud, Norway
20.4km (12.7 miles) ⓘKisgruva, Kongsberg, Buskerud, Norway
20.6km (12.8 miles) ⓘKnutehovet Mine, Knutehovet Mining Field, Kongsberg, Buskerud, Norway
21.7km (13.5 miles) ⓘChristian 7th Southern Adit (Saggrenda), Overberget Mining Field, Kongsberg, Buskerud, Norway
23.1km (14.3 miles) ⓘGottes Hülfe in der Noth Mine, Overberget Mining Field, Kongsberg, Buskerud, Norway
25.0km (15.5 miles) ⓘGamle Segen Gottes Mine, Underberget Mining Field, Kongsberg, Buskerud, Norway
26.2km (16.3 miles) ⓘRoadcut 2, Stulen ore field, Skien, Telemark, Norway
26.3km (16.3 miles) ⓘSandåen prospect c, Stulen ore field, Skien, Telemark, Norway
References
Werner, Ronald (1998) Tinfos jernverks kvartsbrudd. Turkis fra Notodden [Tinfos Iron works quartz quarry. Turquoise from Notodden]. STEIN. Nordisk magasin for populær geologi, 25 (2) 6-7
 
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