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 MindatThe Mindat Store
Minerals by PropertiesMinerals by ChemistryRandom MineralSearch by minIDLocalities Near MeSearch 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 Shows & EventsThe Mindat DirectoryHow to Link to MindatDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery
Corundum - Lot 10, Concession 1, Bathurst Township, Lanark Co., Ontario, Canada
June 17, 2012 06:04PM
This is not corundum pseudomorph after spinel, it's just spinel (with a minute epitactic xls of hogbomite group.)

The corundum ps spinel crystals are quite distinctive, with weird pebbly surfaces, and a greyish color, nothing like the sharp, clean spinel, black to the naked eye, dark green with magnification, shown here.

I hope to soon have more info on this locality, and perhaps more on the hogbomite.
message sent.
Re: Corundum - Lot 10, Concession 1, Bathurst Township, Lanark Co., Ontario, Canada
June 18, 2012 03:28PM
Hi Tim:

The Corundum is here. The slightly greenish top to the Spinel crystal on the upper right side of the sample is Corundum. This is one of the few samples I have seen frm here that is in the process of transformation so the crystals are partially Spinel and partially Corundum pseudomorphs. I will post a child photo of a close-up on these compound crystals. I am glad to see you will have data on the Hogbomite as I have been curious where it fits in that group.
A closeup photo would be lovely, thank you!

Your Email:


  • Valid attachments: jpg, gif, png, pdf
  • No file can be larger than 1000 KB
  • 3 more file(s) can be attached to this message

Spam prevention:
Please, enter the code that you see below in the input field. This is for blocking bots that try to post this form automatically. If the code is hard to read, then just try to guess it right. If you enter the wrong code, a new image is created and you get another chance to enter it right.

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 1993-2016, except where stated. relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: October 23, 2016 17:08:18
Go to top of page