Mindat Logo

Sodicgedrite

Formula:
[Na][Mg
 
2
][Mg
 
4
Al][(OH)
 
2
|Al
 
2
Si
 
6
O
 
22
]
System:OrthorhombicColour:nd
Lustre:VitreousHardness:5½ - 6
Name:Named as a sodium-bearing, magnesium-dominant member of the gedrite series.


Amphibole Group, Mg-Fe-Mn-Li Ortho-Amphibole Subgroup

Classification of Sodicgedrite

IMA status:Approved
Strunz 8th edition ID:8/F.12-80
Nickel-Strunz 10th (pending) edition ID:9.DD.05

9 : SILICATES (Germanates)
D : Inosilicates
D : Inosilicates with 2-periodic double chains, Si4O11; Orthoamphiboles
Dana 8th edition ID:66.1.2.8

66 : INOSILICATES Double-Width,Unbranched Chains,(W=2)
1 : Amphiboles - Mg-Fe-Mn-Li subgroup
mindat.org URL:http://www.mindat.org/min-7305.html
Please feel free to link to this page.

Physical Properties of Sodicgedrite

Lustre:Vitreous
Colour:nd
Streak:nd
Hardness (Mohs):5½ - 6

Crystallography of Sodicgedrite

Crystal System:Orthorhombic

Chemical Properties of Sodicgedrite

Formula:
[Na][Mg
 
2
][Mg
 
4
Al][(OH)
 
2
|Al
 
2
Si
 
6
O
 
22
]
Essential elements:Al, H, Mg, Na, O, Si
All elements listed in formula:Al, H, Mg, Na, O, Si

Relationship of Sodicgedrite to other Species

Series:Forms a series with Sodic-ferrogedrite (see here)
Related Minerals - Nickel-Strunz Grouping):
9.DD.05Anthophyllite
☐[Mg
 
2
][Mg
 
5
][(OH)
 
2
|Si
 
8
O
 
22
]
9.DD.05Ferro-anthophyllite
☐[Fe
2+
2
][Fe
2+
5
][(OH)
 
2
|Si
 
8
O
 
22
]
9.DD.05Ferrogedrite
☐[Fe
2+
2
][Fe
2+
3
Al
 
2
][(OH)
 
2
|Al
 
2
Si
 
6
O
 
22
]
9.DD.05Gedrite
☐[Mg
 
2
][Mg
 
3
Al
 
2
][(OH)
 
2
|Al
 
2
Si
 
6
O
 
22
]
9.DD.05Holmquistite
☐[Li
 
2
][Mg
 
3
Al
 
2
][(OH)
 
2
|Si
 
8
O
 
22
]
9.DD.05Protoferro-anthophyllite
☐[Fe
2+
2
][Fe
2+
5
][(OH)
 
2
|Si
 
8
O
 
22
]
9.DD.05Protomangano-ferro-anthophyllite
☐[Mn
2+
2
][Fe
2+
5
][(OH)
 
2
|Si
 
8
O
 
22
]
9.DD.05Sodicanthophyllite
[Na][NaMg][Mg
 
5
][(OH)
 
2
|Si
 
8
O
 
22
]
9.DD.05Sodic-ferro-anthophyllite
[Na][NaFe
2+
 
][Fe
2+
5
][(OH)
 
2
|Si
 
8
O
 
22
]
9.DD.05Sodic-ferrogedrite
[Na][Fe
2+
2
][Fe
2+
4
Al][(OH)
 
2
|Al
 
2
Si
 
6
O
 
22
]
9.DD.05Ferroholmquistite
☐[Li
 
2
][Fe
2+
3
Al
 
2
][(OH)
 
2
|Si
 
8
O
 
22
]
9.DD.05Protoanthophyllite
☐[Mg
 
2
][Mg
 
5
][(OH)
 
2
|Si
 
8
O
 
22
]

Other Names for Sodicgedrite

Synonyms:
Na GedriteSodium Gedrite
German names:
Na-GedritNatriumgedrit
Spanish names:
Sodicgedrita

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.

References for Sodicgedrite

Reference List:Hawthorne F.C. (1983), Canadian Mineralogist: 21: 173.

Mineralogical Record: 29: 169-174.

Hawthorne, Frank C., and Roberta Oberti (2006), On the classification of amphiboles: Canadian Mineralogist:
44(1): 1-21.

Internet Links for Sodicgedrite

Search Engines:
  • Look for Sodicgedrite on Google
  • Look for Sodicgedrite images on Google
  • External Links:
  • Look for Sodicgedrite on Webmineral
  • Look for Sodicgedrite on Athena Mineralogy
  • Look for Sodicgedrite on Wikipedia
  • Look for Sodicgedrite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Sodicgedrite in the Natural History Museum (London) online catalogue
  • Mineral Dealers:
  • High-end worldwide specimens & outstanding customer service
  • Wright's Rock Shop - excellent mineral specimens since 1970
  • Fabre Minerals - search for Sodicgedrite specimens
  • Buy Minerals and Crystals from Crystalarium.com
  • Buy from David K Joyce minerals
  • e-Rocks - Mineral Auctions and Sales
  • Lapis Mineral Magazin
  • Rare and Unusual minerals at Mineralogical Research Company
  • Wilensky Fine Minerals
  • Top quality minerals from Kristalle of California
  • Mineral Classics - Worldwide Collector Quality Minerals and Gems
  • The Arkenstone - Fine Minerals
  • Jobs:
  • Mining & Geology Jobs
  • Page Sponsor

    Sponsorship:This page is currently not sponsored. Click here to find out how you can sponsor this page.

    Localities for Sodicgedrite

    (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
     
    • Västmanland
      • Nora
    Kjell Gatedal
    Mineral and/or Locality
    Google
     
    www.mindat.org Web
    Copyright © Jolyon & Ida Ralph 1993-2008. 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. If you would like to add information to improve the quality of our database, then click here to register.