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!
Log InRegister
Quick Links : The Mindat ManualThe Rock H. Currier Digital LibraryMindat Newsletter [Free Download]
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe ElementsThe Rock H. Currier Digital LibraryGeologic TimeExplore Fossils
Minerals by PropertiesMinerals by ChemistryMineral Visual ExplorerAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsUsersMineral MuseumsClubs & OrganizationsMineral Shows & EventsThe Mindat DirectoryDevice SettingsThe Mineral QuizTime Machine
Photo SearchPhoto GalleriesSearch by ColorPhoto Colour ExplorerNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography

Laumontite from
Cornwall Mines (Cornwall Iron Mine), Cornwall Borough (Cornwall), Lebanon County, Pennsylvania, USA


04151850017370265175659.jpg
Laumontite

Cornwall Mines, Cornwall Borough, Lebanon County, Pennsylvania, USA
02599120017272012439994.jpg
Laumontite, etc.

Cornwall Mines, Cornwall Borough, Lebanon County, Pennsylvania, USA
04151850017370265175659.jpg
Laumontite

Cornwall Mines, Cornwall Borough, Lebanon County, Pennsylvania, USA
02599120017272012439994.jpg
Laumontite, etc.

Cornwall Mines, Cornwall Borough, Lebanon County, Pennsylvania, USA
04151850017370265175659.jpg
Laumontite

Cornwall Mines, Cornwall Borough, Lebanon County, Pennsylvania, USA
02599120017272012439994.jpg
Laumontite, etc.

Cornwall Mines, Cornwall Borough, Lebanon County, Pennsylvania, USA
Locality type:Mine
Classification
Species:Laumontite
Formula:CaAl2Si4O12 · 4H2O
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Hydroxyapophyllite-(K)3
Analcime1
Data
Mineral Data:Click here to view Laumontite data
Locality Data:Click here to view Cornwall Mines (Cornwall Iron Mine), Cornwall Borough (Cornwall), Lebanon County, Pennsylvania, USA
Photo GalleryView Gallery (2 photos)
Data Identifiers
Mindat Occurrence Record ID:319205
Long-form Identifier:1:3:319205:4
GUID (UUID V4):0
Nearest other occurrences of Laumontite
37.0km (23.0 miles) ⓘSilver Hill Quarry, Bowmansville, Brecknock Township, Lancaster County, Pennsylvania, USA
45.4km (28.2 miles) ⓘGrace Mine, Morgantown, Berks County, Pennsylvania, USA
46.0km (28.6 miles) ⓘDyer Quarry, Gibraltar, Birdsboro, Berks County, Pennsylvania, USA
49.4km (30.7 miles) ⓘH&K Birdsboro Materials Quarry (Dyer Trap Rock Quarry; Hay Creek Trap Rock Quarry), Hay Creek, Birdsboro, Berks County, Pennsylvania, USA
56.5km (35.1 miles) ⓘZeolite locality, Dillsburg, York County, Pennsylvania, USA
58.7km (36.5 miles) ⓘFrench Creek Mines, Saint Peters, Warwick Township, Chester County, Pennsylvania, USA
81.3km (50.5 miles) ⓘHavre De Grace Quarry, Harford County, Maryland, USA
83.1km (51.7 miles) ⓘChurchville Quarry (Davis Quarry Company Inc.), Harford County, Maryland, USA
86.5km (53.8 miles) ⓘTeeter Quarry, Cumberland Township, Adams County, Pennsylvania, USA
91.0km (56.5 miles) ⓘBrandywine Quarry (Hubbard Quarry), Wilmington, New Castle County, Delaware, USA
References
The tumbler - Zeolites And TheirAssociations, Milt Leet Sept 2004 pg. 4
Tschernich, Rudy W. (1992) Zeolites of the World. Geoscience Press, Inc. 567pp.
 
and/or  
Mindat.org® is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Mindat® and mindat.org® are registered trademarks of the Hudson Institute of Mineralogy.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2026, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph and Ida Chau.
Content on this site may not be used to train, fine-tune, or otherwise develop artificial intelligence or machine learning models without prior written permission - see our Terms & Conditions.
To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844. doi:10.2138/am-2024-9486.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: September 3, 2026 16:52:32
Go to top of page