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 Time
Minerals by PropertiesMinerals by ChemistryAdvanced 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 Quiz
Photo SearchPhoto GalleriesSearch by ColorNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography

Identity HelpPossible Hydrocerussite from the Grand Reef Mine, Arizona

9th Aug 2020 21:17 UTCRolf Luetcke Expert

04179000016033632864186.jpg
I purchased some material collected by David Shannon back in 1993 at the Tucson show a while back and going through the material came to some tiny, pearly, thin, platy crystal clusters that were with cerussite, caledonite and other minerals.   I have a Tsumeb hydrocerussite that I checked and the crystals on the Grand Reef are smaller so difficult to be certain but they look pretty much the same.  This area of the specimen showed the tiny crystals and a second area had more hexagonal platy crystals.  I will add this one also. 
No photos of the hydrocerussite on the Grand Reef Mine page so hard to check with no photos.
Hope someone can help.

9th Aug 2020 21:20 UTCRolf Luetcke Expert

01015150016033632875502.jpg
This is a bit over on the same specimen and the crystals here are more platy and the caledonite with it here is more than on the other part with the smaller crystals.
Any help would be greatly appreciated.
Please note, it is a tiny piece and I have no plans to send it anywhere to have an analysis done, partly due to the virus problem these days.

9th Aug 2020 23:13 UTCDana Slaughter 🌟 Expert

In my experience, hydrocerussite is generally fluorescent---have you checked? White to pale yellow perhaps.

9th Aug 2020 23:41 UTCRolf Luetcke Expert

Dana,
Checked the piece and it is a very mild fluorescence, I can see it against the background but certainly not bright like the piece from Tsumeb, which lights up like a neon light.
Thanks for the hint and it seems to be very faint if so.  Super tiny but I would think it would show up like the Tsumeb one but it does not.
 
and/or  
Mindat Discussions Facebook Logo Instagram Logo Discord Logo
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2024, 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.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: May 9, 2024 17:53:57
Go to top of page