H&K Silver Hill Quarry, Narvon, Caernarvon Township, Lancaster Co., Pennsylvania, USA

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Quarry in Hammer Creek Argillite with diabase intrusion, operating from 1986 to present. Observations of Zeolite mineralization.

References:
DE Min, Soc. 04/08, DCNR-PA Geo, Geode - Berks Co. Min Soc., March '06

Mineral List:

Actinolite
'Apatite'
'Apophyllite'
Hematite

Laumontite
Natrolite
Pectolite
var: Manganoan Pectolite
Prehnite

Pyrite
'Stilbite'

10 entries listed. 6 valid minerals.

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