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Heulandit Traditional Cache

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notocactus: lukkes

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Hidden : 5/3/2009
Difficulty:
1.5 out of 5
Terrain:
1.5 out of 5

Size: Size:   small (small)

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Geocache Description:


En resteplas cache.


heulandit, (efter den britiske mineralsamler H. Heuland, 1777-1856,
hvidt eller svagtfarvet zeolitmineral.
Massefylden er 2,2 g/cm3, hårdheden 31/2-4.
Mineralet krystalliserer monoklint;
formlen er (Na,Ca)2-3Al3(Al,Si)2Si13O36·12H2O.
Heulandit findes i porerum i basaltiske bjergarter sammen med calcit,
grønjord og andre zeolitter.
Almindeligt mineral på Færøerne og i Island.

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