Mineralpedia Details for Calciomurmanite
Calciomurmanite
Calciomurmanite from Mt. Pyalkimpor, Lovozero Massif, Kola Peninsula, Russia
- Special Info
- Type Locality,XRD Confirmed,EDS Confirmed
Calciomurmanite is Na-Ca ordered analogue of murmanite. Murmanite does not contain calcium, only Na, by strict definition. Otherwise, you cannot tell these two minerals apart visually. Calciomurmanite crystals occur as thin plates and somewhat micaceous. The cleavage surfaces have a mother of pearl luster. This specimen was verified by Dr. Igor Pekov and was part of his study to define the mineral for publication. It is an approved IMA mineral, although not yet published.
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Calciomurmanite from P'yalkimpor Mt, Lovozero Massif, Murmansk Oblast, Russia
- Special Info
- XRD Confirmed
Pink micaceous crystals to 1.7mm. Calciomurmanite looks like a mica, but it is not. It is sorosilicate rather than a phyllosilicate, like true micas. Identified by Dr. Igor Pekov.
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