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Ferri-ghoseite from
South Tirodi Mine, Tirodi, Balaghat District, Jabalpur Division, Madhya Pradesh, India


Locality type:Mine
Classification
Species:Ferri-ghoseite
Formula:◻[Mn2+Na][Mg4Fe3+]Si8O22(OH)2
Formation:Secondary
Chemical Analyses:
Oxide wt%:
1
SiO256.34 %
Al2O30.96 %
TiO20.00 %
Fe2O37.44 %
FeO3.14 %
MgO17.32 %
MnO4.61 %
CaO1.32 %
Na2O6.55 %
K2O0.17 %
F0 %
H2O2.12 %
Total:99.97 %
Empirical formulas:
1A(Na0.45K0.0,3)B0.48( (Na1.34Ca0.20Mn0.46) C2.00( (Mg3.64Fe2+0.37Mn2+0.09Fe3+0.79Ti0.00Al0.11) 5.00 T( (Si7.95Al0.05) 8.00OW22( (OH) 2.00)
Sample references:
1 -
Comments:Large prismatic crystals of Mn-bearing alkali amphibole (up to 25 cm in length, as in the Tirodi West Hill pegmatites) occur in Tirodi, where pegmatites cut across gondites and Mn ore bodies. These occurrences are restricted to the sillimanite zone.
Habit:Prismatic blades that breaks up to silky, asbestos-like fibers
Colour:yellow to honey-yellow
Quality for species:Excellent - world class for species or very significant. (!!)
Confirmation
Validity:Confirmed
Confirmation Methods:XRD
EPMA
Associated Minerals:
Associates:Braunite
Quartz
Rhodonite
Spessartine
Associated Minerals Based on Photo Data:
Braunite2 photos of Ferri-ghoseite associated with Braunite at this locality.
Data
Mineral Data:Click here to view Ferri-ghoseite data
Locality Data:Click here to view South Tirodi Mine, Tirodi, Balaghat District, Jabalpur Division, Madhya Pradesh, India
Photo GalleryView Gallery (3 photos)
Data Identifiers
Mindat Occurrence Record ID:260621
Long-form Identifier:1:3:260621:7
GUID (UUID V4):e91c6932-de7f-4996-8d85-57db69c32e70
Nearest other occurrences of Ferri-ghoseite
14.8km (9.2 miles) Chikala, Bhandara District, Nagpur Division, Maharashtra, India
15.7km (9.8 miles) Chikala mine (Chickala mine), Chikala, Bhandara District, Nagpur Division, Maharashtra, India
97.5km (60.6 miles) Gowari Wadhona Mine, Chhindwara District, Jabalpur Division, Madhya Pradesh, India
References
 
Mineral and/or Locality  
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