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Dravite from
Mwajanga diggings, Simanjiro District, Manyara Region, Tanzania


00666080017272313384389.jpg
Dravite

Mwajanga diggings, Simanjiro District, Manyara Region, Tanzania
01299180017272313399785.jpg
Dravite

Mwajanga diggings, Simanjiro District, Manyara Region, Tanzania
07737230017272313371677.jpg
Dravite

Mwajanga diggings, Simanjiro District, Manyara Region, Tanzania
06286110017272313387005.jpg
Dravite

Mwajanga diggings, Simanjiro District, Manyara Region, Tanzania
01514370017272018869277.jpg
Dravite

Mwajanga diggings, Simanjiro District, Manyara Region, Tanzania
09073400017272018895832.jpg
Dravite

Mwajanga diggings, Simanjiro District, Manyara Region, Tanzania
07737230017272313371677.jpg
Dravite

Mwajanga diggings, Simanjiro District, Manyara Region, Tanzania
06286110017272313387005.jpg
Dravite

Mwajanga diggings, Simanjiro District, Manyara Region, Tanzania
05843070017272018947647.jpg
Dravite

Mwajanga diggings, Simanjiro District, Manyara Region, Tanzania
01299180017272313399785.jpg
Dravite

Mwajanga diggings, Simanjiro District, Manyara Region, Tanzania
08440590017272313395982.jpg
Dravite

Mwajanga diggings, Simanjiro District, Manyara Region, Tanzania
06459890017272313466911.jpg
Dravite

Mwajanga diggings, Simanjiro District, Manyara Region, Tanzania
Locality type:Diggings
Classification
Species:Dravite
Formula:NaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
Comments:A widely sold material from this locality is "chromdravite". EDS analysis shows that a typical specimen contained no chromium, but did have a small amount of vanadium (Tony Nikischer, 2011).
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Albite5
Calcite3
Natrolite2
Quartz1
Pyrite1
Data
Mineral Data:Click here to view Dravite data
Locality Data:Click here to view Mwajanga diggings, Simanjiro District, Manyara Region, Tanzania
Photo GalleryView Gallery (32 photos)
Data Identifiers
Mindat Occurrence Record ID:749578
Long-form Identifier:1:3:749578:6
GUID (UUID V4):0
References
Excalibur Mineral Corp. - Mineral News
www.minrec.org (n.d.) http://www.minrec.org/pdfs/Toms%20Online%20report%2039.pdf
Laurs, B.M., Falster, A.U., Simmons, W.B. (2017) Gem notes - Tourmaline (Dravite) from Simanjiro District, Tanzania. The Journal of Gemmology, 35(6), 481-482.
 
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