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Långörsholmen, Alnö, Sundsvall, Medelpad, Sweden

Detailed Mineral List:

Perovskite var: Knopite
Formula:	(Ca,Ce,Na)(Ti,Fe)O₃
Reference:	Holmquist, P.J. (1894): Knopit, ett perowskit närstående, et nytt mineral från Alnön. Geologiska Föreningen i Stockholm Förhandlingar. 16 : 73-95; Clark, 1993 - "Hey's Mineral Index", 365

1 entry listed.

References

- Holmquist, P.J. (1894): Knopit, ett perowskit närstående, et nytt mineral från Alnön. Geologiska Föreningen i Stockholm Förhandlingar. 16 : 73-95

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