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

Heulandite-Ca from
Doubravice quarry, Doubravice, Železnice, Jičín District, Hradec Králové Region, Czech Republic


06246030017369397266877.jpg
Heulandite-Ca

Doubravice quarry, Doubravice, Železnice, Jičín District, Hradec Králové Region, Czech Republic
06246030017369397266877.jpg
Heulandite-Ca

Doubravice quarry, Doubravice, Železnice, Jičín District, Hradec Králové Region, Czech Republic
00228650017272021054420.jpg
Heulandite-Ca

Doubravice quarry, Doubravice, Železnice, Jičín District, Hradec Králové Region, Czech Republic
Locality type:Quarry
Classification
Species:Heulandite-Ca
Formula:(Ca,Na)5(Si27Al9)O72 · 26H2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Heulandite-Ca data
Locality Data:Click here to view Doubravice quarry, Doubravice, Železnice, Jičín District, Hradec Králové Region, Czech Republic
Data Identifiers
Mindat Occurrence Record ID:24822
Long-form Identifier:1:3:24822:0
GUID (UUID V4):0
Nearest other occurrences of Heulandite-Ca
24.2km (15.0 miles) ⓘBezděčín quarry, Bezděčín, Frýdštejn, Jablonec nad Nisou District, Liberec Region, Czech Republic
40.9km (25.4 miles) ⓘMichałowice granite quarry, Piechowice, Karkonosze County, Lower Silesian Voivodeship, Poland
43.5km (27.0 miles) ⓘMalý Jelení hill, Česká Lípa District, Liberec Region, Czech Republic
56.1km (34.9 miles) ⓘMichlův hill quarry, Provodín, Česká Lípa District, Liberec Region, Czech Republic
62.2km (38.7 miles) ⓘŠpičák, Stará Lípa, Česká Lípa, Česká Lípa District, Liberec Region, Czech Republic
74.9km (46.5 miles) ⓘJehla, Česká Kamenice, Děčín District, Ústí nad Labem Region, Czech Republic
79.6km (49.5 miles) ⓘKlunst Quarry, Ebersbach-Neugersdorf, Görlitz District, Saxony, Germany
83.6km (51.9 miles) ⓘMilířsko, Těchlovice, Děčín District, Ústí nad Labem Region, Czech Republic
85.1km (52.9 miles) ⓘAndrzej III quarry, Żółkiewka, Gmina Strzegom, Świdnica County, Lower Silesian Voivodeship, Poland
85.3km (53.0 miles) ⓘAndrzej I quarry, Żółkiewka, Gmina Strzegom, Świdnica County, Lower Silesian Voivodeship, Poland
References
Zeman, M.: Zeolity melafyrů
SV Č
ech. Minerál, 1996, roč
. 4, č
. 2, s. 107
 
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 06:37:11
Go to top of page