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Hanjiangite

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Formula:
Ba2CaV3+Al(H2AlSi3O12)(CO3)2F
System:
Monoclinic
Colour:
Yellow-green to dark ...
Hardness:
4
Name:
Named after the Han River (in Chinese: Hanjiang), the largest branch of the Yangtze River, China. The Han River flows through the type locality, the Shiti ore district.
This page provides mineralogical data about Hanjiangite.

Classification of Hanjiangite

Approved 2009
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http://www.mindat.org/min-43085.html
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First Recorded Occurrence of Hanjiangite

Physical Properties of Hanjiangite

Vitreous
Diaphaneity (Transparency):
Transparent, Translucent
Colour:
Yellow-green to dark green
Streak:
Greenish white
Hardness (Mohs):
4
Hardness (Vickers):
VHN25=191 - 215 kg/mm2
Tenacity:
Brittle
Cleavage:
Perfect
on {001}
Fracture:
Splintery
Density:
3.69 g/cm3 (Measured)    3.78 g/cm3 (Calculated)

Crystallography of Hanjiangite

Crystal System:
Monoclinic
Class (H-M):
2 - Sphenoidal
Space Group:
B2
Space Group Setting:
C2
Cell Parameters:
a = 5.2050(12) Å, b = 9.033(2) Å, c = 32.077(8) Å
β = 93.49(8)°
Ratio:
a:b:c = 0.576 : 1 : 3.551
Unit Cell Volume:
V 1505.4 ų
Z:
4
Morphology:
Thin, euhedral, pseudo-tetragonal, tabular crystals and anhedral grains.
Comment:
1M, 2M and 3T polytypes exist.
X-Ray Powder Diffraction Data:
d-spacingIntensity
15.866 (7)
5.340 (91)
4.010 (10)
3.209 (23)
2.676 (100)
2.294 (29)
2.008 (11)

Optical Data of Hanjiangite

Type:
Biaxial (-)
RI values:
nα = 1.615 nβ = 1.655 nγ = 1.700
2V:
Measured: 114° to 115°, Calculated: 88.8°
Max Birefringence:
δ = 0.085
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
r > v, medium
Pleochroism:
Strong
Comments:
Pale yellow-green to deep green.

Chemical Properties of Hanjiangite

Formula:
Ba2CaV3+Al(H2AlSi3O12)(CO3)2F
All elements listed in formula:
Analytical Data:
Average of 44 electron-microprobe analyses on 3 different samples from the type locality. Total C from HF combustion IR absorption; H2O from TGA.
SiO2 (19.64)
TiO2 (1.12)
Al2O3 (11.19)
MgO (0.54)
CaO (4.91)
BaO (34.89)
V2O3 (9.93)
Cr2O3 (1.75)
Na2O (0.20)
K2O (0.06)
MnO (0.01)
FeO (0.02)
NiO (0.01)
SrO (0.34)
Y2O3 (0.85)
La2O3 (0.14)
Nd2O3 (0.26)
F (1.80)
Cl (0.04)
CO2 (10.37)
H2O (1.30)
O=F (-0.76)
O=Cl (-0.01)
Total (98.60)
Empirical Formula:
(Ba1.98Na0.06K0.01)(Ca0.76Mg0.12Y0.06Sr0.03La0.01Nd0.01)(V1.15Al0.75Cr0.20Ti0.12)(Si2.84Al1.16)O10[(OH)1.25O0.77](F0.82Cl0.01)(CO3)2.05

Other Names for Hanjiangite

Name in Other Languages:

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 Hanjiangite

Reference List:
Liu, J., Li, G., Mao, Q., Wu, S., Liu, Z., Su, S., Xiong, M. & Yu, X. (2012): Hanjiangite, a new barium-vanadium phyllosilicate carbonate mineral from the Shiti barium deposit in the Dabashan region, China. American Mineralogist, 97, 281-290.

Internet Links for Hanjiangite

Localities for Hanjiangite

map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
China
 
  • Shaanxi Province
    • Ankang Prefecture
      • Hanbin District
Jiajun Liu, Guowu Li, Qian Mao, Shenghua Wu, Zhenjiang Liu, Shangguo Su, Ming Xiong, and Xiaoyan Yu (2012): Acta Mineralogica Sinica 32(2), 173-182; Liu, J., Li, G., Mao, Q., Wu, S., Liu, Z., Su, S., Xiong, M. & Yu, X. (2012): American Mineralogist, 97, 281-290
Mineral and/or Locality  
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