Lamprophyllite-2O
A structural variant of Lamprophyllite
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Formula:
(Na,Mn2+)3(Sr,Na)2(Ti,Fe3+)3(Si2O7)2O2(OH,O,F)2
Crystal System:
Orthorhombic
A polytype of Lamprophyllite
Orthorhombic polytype of Lamprophyllite.
Originally reported from Gardiner complex, Kangerlussuaq complex, Kangerlussuaq Firth, Tunu (East Greenland) Province, Greenland.
Orthorhombic polytype of Lamprophyllite.
Originally reported from Gardiner complex, Kangerlussuaq complex, Kangerlussuaq Firth, Tunu (East Greenland) Province, Greenland.
Unique Identifiers
Mindat ID:
7639
Long-form identifier:
mindat:1:1:7639:1
GUID
(UUID V4):
(UUID V4):
203cea9b-f774-4585-afee-61ebbf5e3755
Chemical Properties of Lamprophyllite-2O
Formula:
(Na,Mn2+)3(Sr,Na)2(Ti,Fe3+)3(Si2O7)2O2(OH,O,F)2
Crystallography of Lamprophyllite-2O
Crystal System:
Orthorhombic
Class (H-M):
mmm (2/m 2/m 2/m) - Dipyramidal
Cell Parameters:
a = 19.128(4) Å, b = 7.0799(14) Å, c = 5.3824(11) Å
Ratio:
a:b:c = 2.702 : 1 : 0.76
Unit Cell V:
728.91 ų (Calculated from Unit Cell)
Comment:
Space Group: Pnmn; Z: n.d.
Other Information
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
References for Lamprophyllite-2O
Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Krivovichev,S.V., Armbruster, T., Yakovenchuk, V.N., Pakhomovsky, Y.A., and Men'shikov, Y.P. (2003) Crystal structures of lamprophyllite-2M and lamprophyllite-2O from the Lovozero alkaline massif, Kola peninsula, Russia. European Journal of Mineralogy: 15: 711-718.
Internet Links for Lamprophyllite-2O
mindat.org URL:
https://www.mindat.org/min-7639.html
Please feel free to link to this page.
Please feel free to link to this page.
Mineral Dealers:
Localities for Lamprophyllite-2O
Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and further information on this occurrence.
? - Indicates mineral may be doubtful at this locality.
- Good crystals or important locality for species.
- World class for species or very significant.
(TL) - Type Locality for a valid mineral species.
(FRL) - First Recorded Locality for everything else (eg varieties).
Struck out - Mineral was erroneously reported from this locality.
Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).
All localities listed without proper references should be considered as questionable.
All localities listed without proper references should be considered as questionable.
Greenland | |
| [AmMin 82:820] |