Mineralpedia Details for Yuksporite
Yuksporite
Named after its discovery locality near Mt. Yukspor in the Kola Peninsula, Russia. Found only in Russian alkali massifs, Yuksporite occurs in nepheline syenite veins. Yuksporite is one of the only two members of the Umbite Group.
Ref. Handbook of Mineralogy, Anthony et al (1995) and MSA at http://www.handbookofmineralogy.org/pdfs/yuksporite.pdf
- Formula
- K4(Ca,Na)14Sr2Mn(Ti,Nb)4(O,OH)4(Si6O17)2(Si2O7)3(H2O,OH)3
- Crystal System
- Monoclinic
- Crystal Habit
- Concretionary, Nodular
- Cleavage
- Perfect, None, None
- Luster
- Vitreous (Glassy)
- Color
- brown pink, pink
- Streak
- white
- Class
- Monoclinic - Prismatic
- Hardness
- 4.5-5
- WebMineral
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Yuksporite from Eveslogchorr Mt, Khibiny Massif, Kola Peninsula, Russia
Red platy segregations in metamorphosed matrix. See old Russian label.
Click thumbnail images for larger view.
