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Metacinnabar

Type Locality
Redington Mine (Boston Mine; Knoxville Mine; Excellsior Mine), Knoxville, Knoxville District, Napa Co., California, USA
Mineral Data
HgS
Strunz: 
2.CB.05a
Physical Properties
Hardness: 
3.0
Synonyms
Synonyms: 
Metacinnabarite