Hongyan Mn deposit, Heishui Co., Ngawa (Aba) Autonomous Prefecture, Sichuan Province, China

Ref.:
- Hongjun Liu and Youzhi Xue (1999): Sedimentology of Triassic Dounan-type manganese deposits, western margin, Yangtze Platform, China. Ore Geology Reviews 15, 165-176.
- Chengzhong Zhang and Zengda Liu (2006): Geological Characteristics and Development of Hongyan Manganese Deposit in Heishui, Sichuan. China's Manganese Industry 24(4), 46-49 (in Chinese).

Mineral List:

	Braunite

	Calcite var: Manganoan Calcite

	Piemontite

	Rhodonite

	Spessartine

5 entries listed. 4 valid minerals.

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