Help mindat.org|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
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralSearch 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 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

Hellandite-(Yb)

This page is currently not sponsored. Click here to sponsor this page.
Formula:
(Ca,Y)4(Yb,Y)2(Al,Fe3+,Ti4+)[(Be,Li)2(O,F,OH)2|B4Si4O22]
Colour:
brownish red to brownish black
Hellandite Group.

First classified as Hellandite-(Yb) (but not submitted to IMA), then Hellandite-(Y). Modern and more complete analyses are needed to correctly name the samples.

Originally reported from Kalstad-Lindvikskollen pegmatite, Kragerø, Telemark, Norway.



Hide all sections | Show all sections

Classification of Hellandite-(Yb)Hide

8/F.36-08

8 : Silicates
F : Inosilicates (chain and band) double chains [Si2O6]4-
36 : Caysichite-(Y) - Tadzhikite-(Ce) series

Physical Properties of Hellandite-(Yb)Hide

Colour:
brownish red to brownish black

Chemical Properties of Hellandite-(Yb)Hide

Formula:
(Ca,Y)4(Yb,Y)2(Al,Fe3+,Ti4+)[(Be,Li)2(O,F,OH)2|B4Si4O22]
Elements listed:

Other Language Names for Hellandite-(Yb)Hide

Related Minerals - Nickel-Strunz Grouping (8th Edition)Hide

8/F.36-02GrumantiteNa(HSi2O5) · H2OOrth. mm2 : Fdd2
8/F.36-05Caysichite-(Y)Ca2Y2Si4O10(CO3)3 · 4H2OOrth. mm2
8/F.36-09Hellandite-(Ce)(Ca,REE)4Ce2Al□2(B4Si4O22) (OH)2
8/F.36-10Hellandite-(Y)(Ca,REE)4Y2Al◻2(B4Si4O22) (OH)2Mon.
8/F.36-20Tadzhikite-(Ce)Ca4Ce3+2Ti◻(B4Si4O22)(OH)2Mon.
8/F.36-30Ashcroftine-(Y)K5Na5(Y,Ca)12Si28O70(OH)2(CO3)8 · 8H2OTet. 4/mmm (4/m 2/m 2/m) : I4/mmm

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.

Internet Links for Hellandite-(Yb)Hide

Localities for Hellandite-(Yb)Hide

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.
Norway
 
  • Telemark
    • Kragerø
      • Lindvikskollen-Kalstadgangen pegmatite
American Mineralogist, 84, 913–921, 1999; American Mineralogist, 87, 745–752, 2002
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 1993-2017, 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 17, 2017 21:49:11 Page generated: August 14, 2017 23:29:26
Go to top of page