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Jerrygibbsite
Type Locality
Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Mineral Data
Mn
2+
9
(SiO
4
)
4
(OH)
2
Strunz:
9.AF.70
Physical Properties
Crystal System:
Orthorhombic
Streak:
Pale pink
Hardness:
5.5
Tenacity:
brittle
