Donate now to keep alive!Help|Log In|Register|
Home PageMindat NewsThe Mindat ManualHistory of MindatCopyright StatusManagement TeamContact UsAdvertise on Mindat
Donate to MindatSponsor a PageSponsored PagesTop Available PagesMindat AdvertisersAdvertise on Mindat
What is a mineral?The most common minerals on earthMineral PhotographyThe Elements and their MineralsGeological TimeMineral Evolution
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
StatisticsThe ElementsMember ListBooks & MagazinesMineral MuseumsMineral Shows & EventsThe Mindat DirectoryDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery

Pockrandt Quarry (Edward Kraemer and Sons; Inc.), Glover Bluff, Marquette Co., Wisconsin, USA

This page is currently not sponsored. Click here to sponsor this page.
Latitude & Longitude (WGS84): 43° 58' 46'' North , 89° 31' 54'' West
Latitude & Longitude (decimal): 43.9794444444, -89.5316666667

Currently active (2015) quarry in Ordovician Prairie du Chien group dolostone. Quarry is apparently on the rim of a poorly preserved impact crater (the Glover Bluff structure), and is a source of specimens of shattercones and impactite breccia. Recent work (Renard, 2011) implies the impact was possible of Recent age.

Mineral List

4 valid minerals.

Rock Types Recorded

Entries shown in red are rocks recorded for this region.

Note: this is a very new system on and data is currently VERY limited. Please bear with us while we work towards adding this information!

The above list contains all mineral locality references listed on This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.


Ekern, G. I. & F. T. Thwaites (1930) The Glover Bluff Structure: a disturbed area in the Paleozoics of Wisconsin: Transactions of the Wisconsin Academy of Science, Arts and Letters: 25: 89-97.

Read, W. F. (1983) Shatter cones at Glover Bluff, Wisconsin: Meteoritics: 18 (3): 241-243.

External Links

Mineral and/or Locality is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © and the Hudson Institute of Mineralogy 1993-2018, except where stated. relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: February 20, 2018 11:54:38 Page generated: March 22, 2017 01:25:50
Go to top of page