Vote for your favorite mineral in #MinCup26! - Cuprite vs. Orpiment
It's a fiery match of vibrant red Cuprite and just as saturated orange Orpiment battle for 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

Marmolite from
Mount Cuba serpentinite, New Castle County, Delaware, USA


Locality type:Mountain
Classification
Species:Serpentine Subgroup var: Marmolite
Formula:D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Marmolite data
Locality Data:Click here to view Mount Cuba serpentinite, New Castle County, Delaware, USA
Data Identifiers
Mindat Occurrence Record ID:721040
Long-form Identifier:1:3:721040:2
GUID (UUID V4):0
Nearest other occurrences of Marmolite
18.7km (11.6 miles) ⓘLenni, Middletown Township, Delaware County, Pennsylvania, USA
36.2km (22.5 miles) ⓘScott Mine, Nottingham, West Nottingham Township, Chester County, Pennsylvania, USA
39.7km (24.7 miles) ⓘGoat Hill Magnesia Quarries, West Nottingham Township, Chester County, Pennsylvania, USA
41.8km (26.0 miles) ⓘWood's Chrome Mine, Texas, Little Britain Township, Lancaster County, Pennsylvania, USA
99.5km (61.9 miles) ⓘBare Hills Serpentine Quarry East, Bare Hills, Baltimore County, Maryland, USA
References
Van Gosen, Bradley S. (2005) Reported historic asbestos mines, historic asbestos prospects, and natural asbestos occurrences in the eastern United States. USGS Open-File Report 2005-1189.
 
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 5, 2026 07:35:35
Go to top of page