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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.


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Classification of MinjiangiteHide

IMA status:
Approved
Approval Year:
2013
First Published:
2015

Physical Properties of MinjiangiteHide

Lustre:
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 MinjiangiteHide

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.
Surface Relief:
Moderate

Chemical Properties of MinjiangiteHide

Formula:
Ba[Be2P2O8]
IMA Formula:
BaBe2(PO4)2
Idealised Formula:
BaBe2(PO4)2
Elements listed:
Ba, Be, O, P - search for minerals with similar chemistry

Crystallography of MinjiangiteHide

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 DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
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 MinjiangiteHide

Type Locality:
ⓘ Pegmatite no. 31 (Xikeng Mine; Xiyuantou), Nanping pegmatite field (Xikeng pegmatite field), Yanping District, Nanping Prefecture, Fujian Province, China
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:
QuartzPalermoiteMuscoviteMontebrasiteHydroxylapatite

Synonyms of MinjiangiteHide

Other InformationHide

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 MinjiangiteHide

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 MinjiangiteHide

Localities for MinjiangiteHide

This 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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
China (TL)
 
  • Fujian Province
    • Nanping Prefecture
      • Yanping District
        • Nanping pegmatite field (Xikeng pegmatite field)
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.
Mineral and/or Locality  
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