IMPORTANT MESSAGE. We need your support now to keep mindat.org running. Click here to find out why.
Log InRegister
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 Educators
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
StatisticsThe ElementsUsersBooks & MagazinesMineral MuseumsMineral Shows & EventsThe Mindat DirectoryDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery

Nepskoeite

This page is currently not sponsored. Click here to sponsor this page.
Hide all sections | Show all sections

About NepskoeiteHide

Formula:
Mg4Cl(OH)7 · 6H2O
Colour:
Colourless with a bright yellow tint.
Lustre:
Pearly
Hardness:
1½ - 2
Crystal System:
Orthorhombic
Name:
Named after its location.
This page provides mineralogical data about Nepskoeite.


Classification of NepskoeiteHide

Approved
3.BD.20

3 : HALIDES
B : Simple halides, with H2O
D : Simple halides with H2O and additional OH

Physical Properties of NepskoeiteHide

Pearly
Colour:
Colourless with a bright yellow tint.
Streak:
White
Hardness:
1½ - 2 on Mohs scale

Optical Data of NepskoeiteHide

Type:
Biaxial (-)
RI values:
nα = 1.532 nβ = 1.562 nγ = 1.562
2V:
Measured: 5°
Max Birefringence:
δ = 0.030
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Low
Dispersion:
weak

Chemical Properties of NepskoeiteHide

Formula:
Mg4Cl(OH)7 · 6H2O

Crystallography of NepskoeiteHide

Crystal System:
Orthorhombic

Type Occurrence of NepskoeiteHide

Synonyms of NepskoeiteHide

Other Language Names for NepskoeiteHide

German:Nepskoeit
Spanish:Nepskoeita

Related Minerals - Nickel-Strunz GroupingHide

3.BD.05CadwaladeriteAlCl(OH)2 · 4H2OAmor.
3.BD.10LesukiteAl2Cl(OH)5 · 2H2OIso. m3m (4/m 3 2/m) : Im3m
3.BD.15KorshunovskiteMg2Cl(OH)3 · 4H2OTric.
3.BD.25KoeneniteNa4Mg9Al4Cl12(OH)22Trig. 3m (3 2/m) : R3m

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for NepskoeiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva (1998): 127(1): 41-46.

Internet Links for NepskoeiteHide

Localities for NepskoeiteHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Russia (TL)
 
  • Eastern-Siberian Region
    • Prebaikalia (Pribaikal'e)
      • Irkutskaya Oblast'
        • Lower Tunguska
          • Nepa River basin
[AmMin 84:686]
Mineral and/or Locality  
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 1993-2018, except where stated. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: October 20, 2018 22:22:18 Page generated: October 6, 2018 13:03:14
Go to top of page