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

Quebec Diamond

This page is currently not sponsored. Click here to sponsor this page.
Formula:
SiO2
Synonym:
A synonym of "Herkimer-style" Quartz
Quartz crystals similar to the well known "Herkimer diamonds" were collected from the cliffs above Vieux Québec by the crew of the second North American voyage of Jacques Cartier in 1535. These were carried back to France and were believed to be diamonds, until experts identified them as quartz crystals. The cliffs still bear the name Cap Diamant given by Cartier.

This greatly pre-dates the discovery of herkimer-type quartz in Herkimer, New York, and might be the oldest recorded mineral occurrence in Canada.


Hide all sections | Show all sections

Unique IdentifiersHide

Mindat ID:
25085 (as Quebec Diamond)
1877 (as "Herkimer-style" Quartz)
3337 (as Quartz)
Long-form identifier:
mindat:1:1:25085:0 (as Quebec Diamond)
mindat:1:1:1877:3 (as "Herkimer-style" Quartz)
mindat:1:1:3337:0 (as Quartz)

Internet Links for Quebec DiamondHide

References for Quebec DiamondHide

Reference List:
Quick NavTopUnique IdentifiersInternet Links References
 
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 05:00:27 Page updated: January 6, 2026 21:56:46
Go to top of page