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Eckermannite from
Kajlidongri Mine, Jhabua District, Madhya Pradesh, India


Locality type:Mine
Classification
Species:Eckermannite
Formula:NaNa2(Mg4Al}Si8O22(OH)2
Comments:Nayak and Leake refers to an analysis by Lahiri(1971) corresponding to eckermannite: (Na0.38K0.16)0.54(Na1.58Ca0.42)2.00(Mg3.08Mn2+0.47Fe2+0.02Fe3+0.62Al0.80Ti0.03)5.53(Si7.49Al0.51)8.00O22(OH)2.

Normally, the amphiboles from Kajlidongri have Fesup>3+>>Al.In addition they are zoned and hincluded by other minerals such as albite. The occurrence of eckermannite is therefore considered questionable until confirmed by modern analytical techniques ( microprobe).
Colour: Deep-blue
Confirmation
Validity:Unconfirmed/Questioned
Data
Mineral Data:Click here to view Eckermannite data
Locality Data:Click here to view Kajlidongri Mine, Jhabua District, Madhya Pradesh, India
Data Identifiers
Mindat Occurrence Record ID:854332
Long-form Identifier:1:3:854332:5
GUID (UUID V4):0
References
Nayak, V. K., Leake, Bernard E. (1975) On 'winchite' from the original locality at Kajlidongri, India. Mineralogical Magazine, 40 (312) 395-399 doi:10.1180/minmag.1975.040.312.08
 
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