Vote for your favorite mineral in #MinCup26! - Quartz vs. Asagiite
It's a classic vs a newbie as the most common named mineral in the crust Quartz is up against an exceedingly-rare sea foam-green mineral discovered just a few years ago Asagiite.
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

Quartz from
U.S 40 Roadcut, Catoctin Mountain, Myersville, Frederick County, Maryland, USA


Locality type:Road Cutting
Classification
Species:Quartz
Formula:SiO2
Comments:quartz occuring in veins is white when pure, when actinolite-tremolite present as fibres it is green and gemmy. suitable for cabochons.
Habit:massive
Colour:white-green
Abundance at site:Common
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Amphibole Supergroup1
- var Byssolite1
Data
Mineral Data:Click here to view Quartz data
Locality Data:Click here to view U.S 40 Roadcut, Catoctin Mountain, Myersville, Frederick County, Maryland, USA
Data Identifiers
Mindat Occurrence Record ID:71105
Long-form Identifier:1:3:71105:4
GUID (UUID V4):0
Nearest other occurrences of Quartz
4.4km (2.7 miles) ⓘFrederick Gold Mine (Clifton Gold Mine), Frederick County, Maryland, USA
20.0km (12.4 miles) ⓘPoint of Rocks bank, Frederick County, Maryland, USA
20.4km (12.7 miles) ⓘWeverton, Washington County, Maryland, USA
20.5km (12.7 miles) ⓘNew London Mine (Linganore Mine), New London, Frederick County, Maryland, USA
21.8km (13.5 miles) ⓘHammond Prospect (Pittinger Prospect), Frederick County, Maryland, USA
21.8km (13.5 miles) ⓘHines Prospects, Frederick County, Maryland, USA
22.7km (14.1 miles) ⓘFarmers Cooperative Limestone Quarry, New London, Frederick County, Maryland, USA
23.2km (14.4 miles) ⓘLiberty Mine, Libertytown, Frederick County, Maryland, USA
23.4km (14.6 miles) ⓘSugarloaf Mountain, Frederick County, Maryland, USA
25.2km (15.6 miles) ⓘRepp Mine, Frederick County, Maryland, USA
References
Matthew Neuzil
 
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 6, 2026 00:36:07
Go to top of page