MANGANONORDITE-(CE)


Meaning of MANGANONORDITE-(CE) in English

General Information:

Chemical Formula:

Na3SrCeMn++Si6O17

Composition:

(Molecular Weight = 792.15 gm)

Sodium 8.71 % Na

Strontium 11.06 % Sr

Cerium 17.69 % Ce

Manganese 6.94 % Mn

Silicon 21.27 % Si

Oxygen 34.34 % O

Empirical Formula:

Na3SrCeMn2+Si6O17

Environment:

In the central (ussingite) zone of hyperagpaitic pegmatite in sodalite nepheline syenites and in ussingite veinlets. The manganese analogue of nordite-(Ce) and ferronordite-(Ce).

IMA Status:

Approved IMA (Dana # Added)

Locality:

Chinlusuia River, Lovozero Alkaline massif, Kola Peninsula, Russia.

Name Origin:

Named as the Mn++ dominant analogue of nordite-(Ce). Nordite series is named after the word for north because of its northern origin in the Lovozero Massif.

Physical Properties:

Cleavage:

[100] Perfect

Color:

pale brown, colorless, or brown.

Density:

3.43 - 3.56, Average = 3.49

Diaphaniety:

Transparent

Habits:

Tabular - Form dimensions are thin in one direction., Rosette - Bundled tabular aggregates resembling rose flower petals.,

Hardness:

5-5.5 - Apatite-Knife Blade

Luminescence:

Non-fluorescent.

Luster:

Vitreous (Glassy)

Streak:

white

More details...

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