Vote for your favorite mineral in #MinCup26! - Bournonite vs. Vesuvianite
Cogwheels of bournonite are up against colourful vesuvianite.
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

Hydroxyapophyllite-(K) from
Fairfax Quarry, Centreville, Culpeper Basin, Fairfax County, Virginia, USA


02673910017271923878399.jpg
Hydroxyapophyllite-(K)

Fairfax Quarry, Centreville, Culpeper Basin, Fairfax County, Virginia, USA
00531520017271923966481.jpg
Hydroxyapophyllite-(K), etc.

Fairfax Quarry, Centreville, Culpeper Basin, Fairfax County, Virginia, USA
08596990017271923919673.jpg
Hydroxyapophyllite-(K), etc.

Fairfax Quarry, Centreville, Culpeper Basin, Fairfax County, Virginia, USA
08985240017272016769782.jpg
Hydroxyapophyllite-(K), etc.

Fairfax Quarry, Centreville, Culpeper Basin, Fairfax County, Virginia, USA
02673910017271923878399.jpg
Hydroxyapophyllite-(K)

Fairfax Quarry, Centreville, Culpeper Basin, Fairfax County, Virginia, USA
00531520017271923966481.jpg
Hydroxyapophyllite-(K), etc.

Fairfax Quarry, Centreville, Culpeper Basin, Fairfax County, Virginia, USA
08596990017271923919673.jpg
Hydroxyapophyllite-(K), etc.

Fairfax Quarry, Centreville, Culpeper Basin, Fairfax County, Virginia, USA
02174720017272016757911.jpg
Hydroxyapophyllite-(K), etc.

Fairfax Quarry, Centreville, Culpeper Basin, Fairfax County, Virginia, USA
02673910017271923878399.jpg
Hydroxyapophyllite-(K)

Fairfax Quarry, Centreville, Culpeper Basin, Fairfax County, Virginia, USA
00531520017271923966481.jpg
Hydroxyapophyllite-(K), etc.

Fairfax Quarry, Centreville, Culpeper Basin, Fairfax County, Virginia, USA
08135610017272016781705.jpg
Hydroxyapophyllite-(K), etc.

Fairfax Quarry, Centreville, Culpeper Basin, Fairfax County, Virginia, USA
06441150017362126951757.jpg
Hydroxyapophyllite-(K), etc.

Fairfax Quarry, Centreville, Culpeper Basin, Fairfax County, Virginia, USA
Locality type:Quarry
Classification
Species:Hydroxyapophyllite-(K)
Formula:KCa4(Si8O20)(OH,F) · 8H2O
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Prehnite71
Thaumasite10
Amphibole Supergroup4
- var Byssolite4
Actinolite1
Data
Mineral Data:Click here to view Hydroxyapophyllite-(K) data
Locality Data:Click here to view Fairfax Quarry, Centreville, Culpeper Basin, Fairfax County, Virginia, USA
Photo GalleryView Gallery (43 photos)
Data Identifiers
Mindat Occurrence Record ID:720395
Long-form Identifier:1:3:720395:4
GUID (UUID V4):0
Nearest other occurrences of Hydroxyapophyllite-(K)
5.7km (3.5 miles) ⓘBull Run Quarry, Conklin, Loudoun County, Virginia, USA
11.0km (6.9 miles) ⓘVirginia Crushed Stone Quarry, Loudoun County, Virginia, USA
11.3km (7.0 miles) ⓘChantilly Quarry, Chantilly, Loudoun County, Virginia, USA
27.1km (16.8 miles) ⓘNew Goose Creek Quarry, Leesburg, Loudoun County, Virginia, USA
27.1km (16.8 miles) ⓘOld Goose Creek Quarry, Leesburg, Loudoun County, Virginia, USA
28.7km (17.8 miles) ⓘLeesburg Quarry, Leesburg, Loudoun County, Virginia, USA
References
Meier, B. M. and Kearns, Lance E., 2011, Chemical Characterization of Northern Virginia Apophyllite, (K, Na)Ca4Si8)20(OH, F).8H2O, 38th Rochester Mineralogical Symposium Progran and Abstracts, p. 25-27.
 
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 4, 2026 02:45:29
Go to top of page