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Heulandite-Ca from
Hørtekollen, Sylling, Lier, Buskerud, Norway

Locality type:Nature Reserve
Formula:(Ca,Na)5(Si27Al9)O72 · 26H2O
Comments:Nordrum et al (2003) has analysed one sample of heulandite from Hørtekollen and found it to be a barian heulandite-Ca
Validity:Believed Valid
References:Nordrum, F.S. ; Larsen, A.O. & Erambert, M. (2003): Minerals of the heulandite series in Norway- a progress report. Norsk Bergverksmuseum skrift 25: 51-62 [with analysis on heulandite-Ca]
Mineral Data:Click here to view Heulandite-Ca data
Locality Data:Click here to view Hørtekollen, Sylling, Lier, Buskerud, Norway
Nearest other occurrences of Heulandite-Ca
10.5km (6.5 miles) Lierskogen Quarry, Lierskogen, Lier, Buskerud, Norway
13.7km (8.5 miles) Vardåsen Tunnel, Asker, Akershus, Norway
21.1km (13.1 miles) Haukåsen, Drammen, Buskerud, Norway
28.5km (17.7 miles) Lauvtjern, Nedre Eiker, Buskerud, Norway
35.0km (21.7 miles) Huken Quarry, Grorud, Oslo, Norway
37.5km (23.3 miles) Bjønndalen Quarry, Nittedal, Akershus, Norway
39.4km (24.5 miles) Anna Sophie Mines, Svene, Flesberg, Buskerud, Norway
39.5km (24.5 miles) Fiskeløs prospect, Øvre Eiker, Buskerud, Norway
44.5km (27.6 miles) Bjerkeli residental area, Botne, Holmestrand, Vestfold, Norway
49.3km (30.6 miles) Bentsrud (Solumbrekka), Holmestrand, Vestfold, Norway
Mineral and/or Locality  
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