Nabalamprophyllite-2O
A structural variant of Nabalamprophyllite
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Formula:
(BaNa)Ti2Na3Ti(Si2O7)2O2(OH)2
Lustre:
Vitreous
Hardness:
3
Specific Gravity:
3.410 (Calculated)
Crystal System:
Orthorhombic
Name:
For its composition (Na and Ba) and relation to other lamprophyllite-group minerals; a suffix indicates the orthorhombic polytype.
Unique Identifiers
Mindat ID:
470952
Long-form identifier:
mindat:1:1:470952:3
GUID
(UUID V4):
(UUID V4):
c07e516d-cfd7-4517-a6fd-0d0fc6df9a3a
Physical Properties of Nabalamprophyllite-2O
Vitreous
Transparency:
Transparent, Translucent
Hardness:
3 on Mohs scale
Tenacity:
Brittle
Cleavage:
Perfect
Perfect on (100)
Perfect on (100)
Density:
3.410 g/cm3 (Calculated)
Chemistry of Nabalamprophyllite-2O
Mindat Formula:
(BaNa)Ti2Na3Ti(Si2O7)2O2(OH)2
Crystallography of Nabalamprophyllite-2O
Crystal System:
Orthorhombic
Class (H-M):
mmm (2/m 2/m 2/m) - Dipyramidal
Cell Parameters:
a = 19.564(2) Å, b = 7.1173(5) Å, c = 5.4144(4) Å
Ratio:
a:b:c = 2.749 : 1 : 0.761
Unit Cell V:
753.92 ų (Calculated from Unit Cell)
Z:
2
Morphology:
Crystals lamellar prismatic with dominant {100} and minor {010} and {130}. Forms radial sheaf-like and random aggregates to 10 cm.
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.
Internet Links for Nabalamprophyllite-2O
mindat.org URL:
https://www.mindat.org/min-470952.html
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References for Nabalamprophyllite-2O
