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Hongheite

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Formula:
Ca19Fe2+Al4(Fe3+,Mg,Al)8(◻,B)4BSi18O69(O,OH)9
Crystal System:
Tetragonal
First Fe(II)- and Fe(III)-dominant member of the group. Somewhat chemically related to another member - milanriederite.


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Classification of HongheiteHide

Approved, Pending publication
Approval Year:
2017

Chemical Properties of HongheiteHide

Formula:
Ca19Fe2+Al4(Fe3+,Mg,Al)8(◻,B)4BSi18O69(O,OH)9

Crystallography of HongheiteHide

Crystal System:
Tetragonal
Class (H-M):
4/mmm (4/m 2/m 2/m) - Ditetragonal Dipyramidal
Space Group:
P4/nnc
Setting:
P4/nnc
Cell Parameters:
a = 15.667(1) Å, c = 11,725(2) Å
Ratio:
a:c = 1 : 0.702
Unit Cell V:
2,700.00 ų (Calculated from Unit Cell)

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
5.850(15)
3.504(23)
3.072(15)
2.929(47)
2.766(100)
2.608(68)
2.589(27)
2.480(29)

Type Occurrence of HongheiteHide

Place of Conservation of Type Material:
mineralogical collections of the Geological Museum of China, Beijing, China, catalogue number M13579

Relationship of Hongheite to other SpeciesHide

Other Members of this group:
AlumovesuvianiteCa19Al(Al10Mg2)Si18O69(OH)9Tet. 4/m : P4/n
CyprineCa19Cu2+(Al10Mg2)Si18O68(OH)10Tet. 4/m : P4/n
FluorvesuvianiteCa19(Al,Mg,Fe2+)13(Si2O7)4(SiO4)10O(F,OH)9Tet. 4/mmm (4/m 2/m 2/m)
MagnesiovesuvianiteCa19Mg(Al10Mg2)(Si2O7)4(SiO4)10(OH)10Tet. 4/m : P4/n
Manaevite-(Ce)Ca11(Ce,H2O,Ca)8Mg(Al,Fe)4(Mg,Ti,Fe3+)8[Si2O7]4[(SiO4)8(H4O4)2](OH)9Tet. 4/mmm (4/m 2/m 2/m) : P4/nnc
ManganvesuvianiteCa19Mn3+(Al,Mn3+,Fe3+)10(Mg,Mn2+)2(Si2O7)4(SiO4)10O(OH)9Tet. 4/m : P4/n
MilanriederiteCa19Fe3+Al4(Mg4Al4)Si18O67(OH)11Tet. 4/mmm (4/m 2/m 2/m) : P4/nnc
Vesuvianite(Ca,Na,☐)19(Al,Mg,Fe3+)13(☐,B,Al,Fe3+)5(Si2O7)4(SiO4)10(OH,F,O)10Tet. 4/mmm (4/m 2/m 2/m) : P4/nnc
WiluiteCa19(Al,Mg)13(B,☐,Al)5(Si2O7)4(SiO4)10(O,OH)10Tet. 4/mmm (4/m 2/m 2/m) : P4/nnc

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 HongheiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Xu, J., Li, G., Fan, G., Ge, X., Zhu, X., Shen, G. (2017): Hongheite, IMA 2017-027. CNMNC Newsletter No. 39, October 2017, page 1283; Mineralogical Magazine, 81, 1279–1286; http://forum.amiminerals.it/viewtopic.php?f=5&t=14029&sid=1bd8fea6f10174ac7bdd04a79c06bffd (2017)

Internet Links for HongheiteHide

Localities for HongheiteHide

ⓘ - 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)
 
  • Yunnan Province
    • Honghe Autonomous Prefecture
      • Gejiu Co.
        • Gejiu Sn-polymetallic ore field
          • Malage ore field
Xu, J., Li, G., Fan, G., Ge, X., Zhu, X., Shen, G. (2017): Hongheite, IMA 2017-027. CNMNC Newsletter No. 39, October 2017, page 1283; Mineralogical Magazine, 81, 1279–1286; http://forum.amiminerals.it/viewtopic.php?f=5&t=14029&sid=1bd8fea6f10174ac7bdd04a79c06bffd (2017)
Mineral and/or Locality  
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