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Named for the type locality
Thought to be a new member of the pyrosmalite group, but this turned out to be erroneous.
Originally reported from Broken Hill, Yancowinna Co., New South Wales, Australia.

Classification of Brokenhillite

Rejected by the IMA
Approval History:
Rejected by IMA: 2001

9 : SILICATES (Germanates)
E : Phyllosilicates
E : Single tetrahedral nets of 6-membered rings connected by octahedral nets or octahedral bands

Chemical Properties of Brokenhillite

Idealised Formula:
Elements listed in formula:

Crystallography of Brokenhillite

Crystal System:
Class (H-M):
6mm - Dihexagonal Pyramidal
Space Group:
Cell Parameters:
a = 13.481 Å, c = 14.084 Å
a:c = 1 : 1.045
Unit Cell Volume:
V 2,216.67 ų (Calculated from Unit Cell)

Relationship of Brokenhillite to other Species

9.EE.20Palygorskite(Mg,Al)2Si4O10(OH) · 4H2O
9.EE.20TuperssuatsiaiteNa2(Fe3+,Mn2+)3Si8O20(OH)2 · 4H2O
9.EE.20Yofortierite(Mn2+,Mg,Fe3+)5Si8O20(OH,H2O)2 · 7H2O
9.EE.20WindhoekiteCa2Fe3+2.67(Si8O20)(OH)4 · 10H2O
9.EE.25FalcondoiteNi4Si6O15(OH)2 · 6H2O
9.EE.25LoughliniteNa2Mg3Si6O16 · 8H2O
9.EE.25SepioliteMg4Si6O15(OH)2 · 6H2O
9.EE.25KalifersiteK5Fe73+Si20O50(OH)6 · 12H2O
9.EE.30GyroliteNaCa16(Si23Al)O60(OH)8 · 14H2O
9.EE.30OrlymaniteCa4Mn32+Si8O20(OH)6 · 2H2O
9.EE.35ReyeriteNa2Ca14Al2Si22O58(OH)8 · 6H2O
9.EE.35TruscottiteCa14Si24O58(OH)8 · 2H2O
9.EE.45MakatiteNa2Si4O8(OH)2 · 4H2O
9.EE.50VarennesiteNa8(Mn,Fe3+,Ti)2Si10O25(OH,Cl)2 · 12H2O
9.EE.55RaiteNa3Mn32+Ti0.25Si8O20(OH)2 · 10H2O
9.EE.60IntersiliteNa6Mn(Ti,Nb)Si10(O,OH)28 · 4H2O
9.EE.65ShafranovskiteNa3K2(Mn,Fe,Na)4[Si9(O,OH)27](OH)2 · nH2O
9.EE.65ZakharoviteNa4Mn52+Si10O24(OH)6 · 6H2O
9.EE.70ZeophylliteCa13Si10O28(OH)2F8 · 6H2O
9.EE.80Fedorite(K,Na)2.5(Ca,Na)7Si16O38(OH,F)2 · 3.5H2O
9.EE.80Martinite(Na,◻,Ca)12Ca4(Si,S,B)14B2O38(OH,Cl)2F2 · 4H2O
9.EE.85Lalondeite(Na,Ca)6(Ca,Na)3Si16O38(F,OH)2 · 3H2O

Other Names for Brokenhillite

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 Brokenhillite

Reference List:
Czank, M. (1987): Structure determination and HRTEM investigation of a new pyrosmalite group mineral. Collected Abstracts, 14th International Congress of Crystallogrpahy, C-155 (1987)[Am. Min. 74,1399(1989) abstract]

Internet Links for Brokenhillite URL:
Please feel free to link to this page.

Localities for Brokenhillite

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.
  • New South Wales
    • Yancowinna Co.
Am Min 74 (1989), 1399
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