Vote for your favorite mineral in #MinCup26! - Hafnon vs. Putnisite
It's a pair of tiny minerals of unusual chemistry as orange Hafnon battles with purple Putnisite.
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Nepheline from
Swangkre, West Khasi Hills District, Meghalaya, India


Locality type:Dike swarm
Classification
Species:Nepheline
Formula:Na3K(Al4Si4O16)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Nepheline data
Locality Data:Click here to view Swangkre, West Khasi Hills District, Meghalaya, India
Data Identifiers
Mindat Occurrence Record ID:1333409
Long-form Identifier:1:3:1333409:5
GUID (UUID V4):0
Nearest other occurrences of Nepheline
11.6km (7.2 miles) ⓘNongcharam-Darugiri area, East Garo Hills District, Meghalaya, India
References
RAGHAVAN NAMBIAR, A. (1987). Alkaline magmatism in parts of West Khasi Hills and East Garo Hills district, Meghalaya. Records of the Geological Survey of India, 115(3-4), 25-44.
Sarkar, A., Datta, A. K., Poddar, B. C., Bhattacharyya, B. K., Kollapuri, V. K., & Sanwal, R. (1996). Geochronological studies of Mesozoic igneous rocks from eastern India. Journal of Southeast Asian Earth Sciences, 13(2), 77-81.
Ray, J. S., Ramesh, R., & Pande, K. (1999). Carbon isotopes in Kerguelen plume-derived carbonatites: evidence for recycled inorganic carbon. Earth and Planetary Science Letters, 170(3), 205-214.
 
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