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Ternesite
Type Locality
Caspar quarry, Bellerberg volcano, Ettringen, Mayen, Eifel, Rhineland-Palatinate, Germany
Mineral Data
Ca
5
(SiO
4
)
2
(SO
4
)
Strunz:
9.AH.20
Physical Properties
Crystal System:
Orthorhombic
Streak:
white
Hardness:
4.5 - 5.0
