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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Bornite from
E18 roadcuts, Slevolden, Porsgrunn, Telemark, Norway


Locality type:Road Cutting
Classification
Species:Bornite
Formula:Cu5FeS4
Confirmation
Validity:Unconfirmed/Questioned
Data
Mineral Data:Click here to view Bornite data
Locality Data:Click here to view E18 roadcuts, Slevolden, Porsgrunn, Telemark, Norway
Data Identifiers
Mindat Occurrence Record ID:171027
Long-form Identifier:1:3:171027:4
GUID (UUID V4):0
Nearest other occurrences of Bornite
1.4km (0.9 miles) ⓘKjølsrød, Bjørkedalen, Porsgrunn, Telemark, Norway
6.0km (3.7 miles) ⓘBuer, Bjørkedalen, Porsgrunn, Telemark, Norway
14.4km (8.9 miles) ⓘZircon prospect, Stokkøya, Larvik Commune, Vestfold, Norway
16.0km (10.0 miles) ⓘHeivassliane Copper Prospects, Heivannet, Skien, Telemark, Norway
16.3km (10.2 miles) ⓘTrollsås Prospect, Gjerpen, Skien, Telemark, Norway
18.6km (11.5 miles) ⓘFjelldalen Mine, Skien, Telemark, Norway
23.4km (14.5 miles) ⓘHasalvika Quarry, Bamble, Telemark, Norway
53.9km (33.5 miles) ⓘRavneberget Quarry, Søndeled, Risør, Agder, Norway
59.3km (36.8 miles) ⓘHøymyr Mine, Lisleherad Station, Notodden, Telemark, Norway
65.6km (40.7 miles) ⓘBulia Copper prospect, Nissedal, Telemark, Norway
References
Burvald, Ingulv (1993) To forekomster av nefelin-syenitt-pegmatitt i Telemark, in Telemark II. STEIN. Nordisk magasin for populær geologi, 20 (3) 176-179
 
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