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Genthelvite-Helvite Series

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System:Isometric
Series Formula:
Zn
 
4
(Be
 
3
Si
 
3
O
 
12
)S
-
Mn
2+
4
(Be
 
3
Si
 
3
O
 
12
)S
A series between Genthelvite and Helvite

Classification of Genthelvite-Helvite Series

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Crystallography of Genthelvite-Helvite Series

Crystal System:Isometric

Optical Data of Genthelvite-Helvite Series

Type:Isotropic

Other Information

Health Warning: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 Genthelvite-Helvite Series

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  • Localities for Genthelvite-Helvite Series

    The 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.
    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Sweden
     
    • Södermanland
      • Nynäshamn
    GFF 113, pp.183-184
      • Utö
    Langhof, J., Holtstam, D. & Gustafsson, L. (2000): Chiavennite and zoned genthelvite-helvite as late-stage minerals of the Proterozoic LCT pegmatites at Utö, Stockholm, Sweden. Geologiska Föreningens Förhandlingar 122, 207-212
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    Copyright © Jolyon Ralph and Ida Chau 1993-2011. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 19th Jun 2011 15:21:20
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