Mineralpedia Details for Gjerdingenite-Ca
Gjerdingenite-Ca
- Formula
- K2(H2O)2Ca(Nb,Ti)4(Si4O12)2(O,OH)4ยท4H2O
- Crystal System
- Monoclinic
- Crystal Habit
- Pseudomorphous
- Cleavage
- None, None
- Luster
- Vitreous (Glassy)
- Color
- white, pale brown, pinkish brown
- Streak
- white
- Class
- Monoclinic - Prismatic
- Fracture
- Brittle - Uneven
- Hardness
- 5
- WebMineral
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- Mindat
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Gjerdingenite-Ca from Pegmatite #61, Karnasurt Mt., Lovozero Massif, Kola Peninsula, Russia
- Special Info
- Type Locality,XRD Confirmed,EDS Confirmed,Author's Material,Type Material
A yellow crystal fragment, less than 1mm, in capsule. Identified by Dr. Igor Pekov. This specimen is Author's material.
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