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
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
╳Discussions
💬 Home🔎 Search📅 LatestGroups
EducationOpen discussion area.Fakes & FraudsOpen discussion area.Field CollectingOpen discussion area.FossilsOpen discussion area.Gems and GemologyOpen discussion area.GeneralOpen discussion area.How to ContributeOpen discussion area.Identity HelpOpen discussion area.Improving Mindat.orgOpen discussion area.LocalitiesOpen discussion area.Lost and Stolen SpecimensOpen discussion area.MarketplaceOpen discussion area.MeteoritesOpen discussion area.Mindat ProductsOpen discussion area.Mineral ExchangesOpen discussion area.Mineral PhotographyOpen discussion area.Mineral ShowsOpen discussion area.Mineralogical ClassificationOpen discussion area.Mineralogy CourseOpen discussion area.MineralsOpen discussion area.Minerals and MuseumsOpen discussion area.PhotosOpen discussion area.Techniques for CollectorsOpen discussion area.The Rock H. Currier Digital LibraryOpen discussion area.UV MineralsOpen discussion area.Recent Images in Discussions
Identity HelpGalena and Unknown? Help Please =)
5th Mar 2012 16:22 UTCMatt Wall
I found this mineral near the Odin Mine again, Castleton, Derbyshire, UK, last weekend. I am just wondering what the pink mineral is in the first 2 photos, it weighs in at 160g, and contains a Galena/Sphalerite. Also, does anyone know what the shining/glistening mineral is the third photo. This sample is very heavy, about 370g and also contains a Galena/Sphalerite mix.
All ideas/messages appreciated,
Thanks, Matt. :-)
5th Mar 2012 16:57 UTCErik Vercammen Expert
3 may be quartz: in that case, it is harder than a knife and scratches glass.
5th Mar 2012 22:15 UTCJosé Zendrera 🌟 Manager
Relating photo 3, I also would consider the possibility that there is more than one spice, as calcite / fluorite. Please see: http://www.mindat.org/photo-198538.html
6th Mar 2012 07:31 UTCMatt Wall
Thanks, Matt :-)
6th Mar 2012 14:26 UTCNoah Horwitz
Calcite will fizz when put into reasonably concentrated acids (eg. hydrochloric acid from hardware store) and will bubble slowly even in vinegar. Fluorite shouldn't react with either acid. Obviously, try the acid test with a small chip so you don't ruin your specimen.
6th Mar 2012 16:04 UTCSpencer Ivan Mather
6th Mar 2012 16:07 UTCGeorg Graf
photo 1 and 2: Baryte (quite heavy, scratched by a knife) or Calcite (gas bubbles with vine gear).
The 3. photo Quartz (harder than steel), Fluorite (crystalls are cubes, magnifying lens) or Calcite.
Greetings, Georg
6th Mar 2012 16:17 UTCMatt Wall
Thanks, Matt :-)
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: April 19, 2024 21:51:04
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: April 19, 2024 21:51:04