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Heulandite-Ca from
Brekke Tunnel, Helland, Re, Vestfold, Norway

Locality type:Tunnel
Formula:(Ca,Na)5(Si27Al9)O72 · 26H2O
Comments:a strontian 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 ; Nordrum, F. S., Larsen, A.O. & Erambert, M. (2005): Minerals of the heulandite series in Norway- additional data and summary. Norsk Bergverksmuseum Skrift, 30: 98-112
Associated Minerals Based on Photo Data:
Calcite3 photos of Heulandite-Ca associated with Calcite at this locality.
Quartz3 photos of Heulandite-Ca associated with Quartz at this locality.
Laumontite1 photo of Heulandite-Ca associated with Laumontite at this locality.
Hematite1 photo of Heulandite-Ca associated with Hematite at this locality.
Prehnite1 photo of Heulandite-Ca associated with Prehnite at this locality.
Mineral Data:Click here to view Heulandite-Ca data
Locality Data:Click here to view Brekke Tunnel, Helland, Re, Vestfold, Norway
Nearest other occurrences of Heulandite-Ca
0.8km (0.5 miles) Reggestad, Re, Vestfold, Norway
1.9km (1.2 miles) Bentsrud (Solumbrekka), Holmestrand, Vestfold, Norway
5.2km (3.3 miles) Falkenstensvingen, Falkensten, Borre, Horten, Vestfold, Norway
6.8km (4.3 miles) Bjerkeli residental area, Botne, Holmestrand, Vestfold, Norway
39.0km (24.2 miles) Vardåsen Tunnel, Asker, Akershus, Norway
40.3km (25.0 miles) Buer, Vesterøya, Sandefjord, Vestfold, Norway
40.3km (25.0 miles) Lierskogen Quarry, Lierskogen, Lier, Buskerud, Norway
43.2km (26.9 miles) Fiskeløs prospect, Øvre Eiker, Buskerud, Norway
44.0km (27.4 miles) Håkestad Quarry, Håkestad, Tjølling, Larvik, Vestfold, Norway
44.6km (27.7 miles) Hasle Quarry, Klåstad, Tjølling, Larvik, Vestfold, Norway
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