Minjiangite
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Formula:
Ba[Be2P2O8]
Colour:
White
Lustre:
Vitreous
Hardness:
6
Specific Gravity:
3.49 (Calculated)
Crystal System:
Hexagonal
Name:
Named by C. Rao, F. Hatert, R.C. Wang, X.P. Gu, F. Dal Bo, and C.W. Dong in 2015 for the Minjiang River, located near the Nanping pegmatite type locality.
Topologically similar to the structure of dmisteinbergite. The natural analogue of synthetic BaBe2(PO4)2.
Classification of Minjiangite
Physical Properties of Minjiangite
Vitreous
Transparency:
Transparent, Translucent
Colour:
White
Hardness:
6 on Mohs scale
Comment:
Estimated ~6
Tenacity:
Brittle
Cleavage:
None Observed
Density:
3.49 g/cm3 (Calculated)
Optical Data of Minjiangite
Type:
Uniaxial (+)
RI values:
nω = 1.587() nε = 1.602(2)
Max Birefringence:
δ = 0.015

Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
and does not take into account mineral colouration.
Surface Relief:
Moderate
Chemical Properties of Minjiangite
Formula:
Ba[Be2P2O8]
IMA Formula:
BaBe2(PO4)2
Idealised Formula:
BaBe2(PO4)2
Elements listed:
Crystallography of Minjiangite
Crystal System:
Hexagonal
Class (H-M):
6/mmm (6/m 2/m 2/m) - Dihexagonal Dipyramidal
Space Group:
P6/mmm
Setting:
P6/mmm
Cell Parameters:
a = 5.030(8) Å, c = 7.467(2) Å
Ratio:
a:c = 1 : 1.484
Unit Cell V:
163.96 ų
Z:
1
Morphology:
Subhedral to euhedral white crystals from 5 to 200 μm long.
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
3.763 | (100) |
2.836 | (81) |
2.515 | (32) |
2.178 | (26) |
2.162 | (19) |
2.090 | (64) |
1.770 | (16) |
1.507 | (25) |
Comments:
From Type Description.
Type Occurrence of Minjiangite
General Appearance of Type Material:
Found in fractures of montebrasite
Place of Conservation of Type Material:
Type material is deposited in the collections of the collections of the Geological Museum of China, Xisi, Beijing, People’s Republic of China, catalogue number M11842
Geological Setting of Type Material:
Granite pegmatite
Associated Minerals at Type Locality:
Synonyms of Minjiangite
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 Minjiangite
Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Rao, C., Hatert, F., Wang, R.C., Gu, X.P., Dal, B.F., Dong, C.W. (2013) Minjiangite, IMA 2013-021. CNMNC Newsletter No. 16, August 2013, page 2705. Mineralogical Magazine: 77: 2695-2709.
Rao, C., Hatert, F., Wang, R.C., Gu, X.P., Dal Bo, F., Dong, C.W. (2015) Minjiangite, BaBe2(PO4)2, a new mineral from Nanping No. 31 pegmatite, Fujian Province, southeastern China. Mineralogical Magazine: 79: 1195-1202.
Internet Links for Minjiangite
mindat.org URL:
https://www.mindat.org/min-43885.html
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External Links:
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Localities for Minjiangite
Locality List




All localities listed without proper references should be considered as questionable.
China (TL) | |
| Rao, C., Hatert, F., Wang, R.C., Gu, X.P., Dal, B.F. and Dong, C.W. (2013) Minjiangite, IMA 2013-021. CNMNC Newsletter No. 16, August 2013, page 2705; Mineralogical Magazine, 77, 2695-2709; Rao, C., Hatert, F., Wang, R.C., Gu, X.P., Dal Bo, F., Dong, C.W. (2015): Minjiangite, BaBe2(PO4)2, a new mineral from Nanping No. 31 pegmatite, Fujian Province, southeastern China. Mineralogical Magazine, 79, 1195-1202. ; Rao, C., Wang, R., Yang, Y., Hatert, F., Xia, Q., Yue, X., & Wang, W. (2017). Insights into post-magmatic metasomatism and Li circulation in granitic systems from phosphate minerals of the Nanping No. 31 pegmatite (SE China). Ore Geology Reviews, 91, 864-876. |