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Mcauslanite

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Formula:
HFe
2+
3
Al
 
2
(PO
 
4
)
 
4
F · 18H
 
2
O
System:TriclinicHardness:3½
This page provides mineralogical data about Mcauslanite.

Classification of Mcauslanite

IMA status:Approved 1986
Strunz 8th edition ID:7/D.04-10
Nickel-Strunz 10th (pending) edition ID:8.DB.60

8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
B : With only medium-sized cations, (OH, etc.):RO4< 1:1
Dana 8th edition ID:42.11.22.1

42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
11 : (AB)3(XO4)2Zq·xH2O
Hey's CIM Ref.:22.1.26

22 : Phosphates, Arsenates or Vanadates with other Anions
1 : Phosphates, arsenates or vanadates with fluoride
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Type Occurrence of Mcauslanite

Type Locality:East Kemptville Tin Mine, East Kemptville, Argyle, Yarmouth Co., Nova Scotia, Canada
Year of Discovery:1988

Physical Properties of Mcauslanite

Hardness (Mohs):3½

Crystallography of Mcauslanite

Crystal System:Triclinic
Cell Parameters:a = 10.05Å, b = 11.56Å, c = 6.88Å
α = 105.84°, β = 93.66°, γ = 106.47°
Ratio:a:b:c = 0.869 : 1 : 0.595
Unit Cell Volume:V 728.71 ų (Calculated from Unit Cell)

Optical Data of Mcauslanite

Type:Biaxial (-)
RI values: nα = 1.522 nβ = 1.531 nγ = 1.534
2V:Measured: 55° to 59.7°, Calculated: 58°
Maximum Birefringence:δ = 0.012

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Low
Dispersion:none

Chemical Properties of Mcauslanite

Formula:
HFe
2+
3
Al
 
2
(PO
 
4
)
 
4
F · 18H
 
2
O
Essential elements:Al, F, Fe, H, O, P
All elements listed in formula:Al, F, Fe, H, O, P

Relationship of Mcauslanite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
8.DB.05Diadochite
Fe
3+
2
(PO
 
4
)(SO
 
4
)(OH) · 5H
 
2
O
8.DB.05Pitticite
(Fe, SO
 
4
, AsO
 
4
, H
 
2
O) ?
8.DB.05Destinezite
Fe
3+
2
(PO
 
4
)(SO
 
4
)(OH) · 6H
 
2
O
8.DB.10Vashegyite
Al
 
11
(PO
 
4
)
 
9
(OH)
 
6
 · 38H
 
2
O
8.DB.15Schoonerite
ZnMn
2+
 
Fe
2+
2
Fe
3+
 
(PO
 
4
)
 
3
(OH)
 
2
 · 9H
 
2
O
8.DB.20Sinkankasite
H
 
2
Mn
2+
 
Al(PO
 
4
)
 
2
(OH) · 6H
 
2
O
8.DB.25Mitryaevaite
Al
 
6
(PO
 
4
)((P,S)O
 
3
(OH,O))
 
2
F
 
2
(OH)
 
2
 · 14.5H
 
2
O
8.DB.30Sanjuanite
Al
 
2
(PO
 
4
)(SO
 
4
)(OH) · 9H
 
2
O
8.DB.35Sarmientite
Fe
3+
2
(AsO
 
4
)(SO
 
4
)(OH) · 5H
 
2
O
8.DB.40Bukovskýite
Fe
3+
2
(AsO
 
4
)(SO
 
4
)(OH) · 7H
 
2
O
8.DB.45Zýkaite
Fe
3+
4
(AsO
 
4
)
 
3
(SO
 
4
)(OH) · 15H
 
2
O
8.DB.50Giniite
Fe
2+
 
Fe
3+
4
(PO
 
4
)
 
3
(OH)
 
5
 · 2H
 
2
O
8.DB.55Sasaite
(Al,Fe
3+
 
)
 
14
(PO
 
4
)
 
11
(SO
 
4
)(OH)
 
7
 · 83H
 
2
O
8.DB.65Goldquarryite
CuCd
 
2
Al
 
3
(PO
 
4
)
 
4
F
 
2
(H
 
2
O,F)
 
2
 · 10H
 
2
O
8.DB.70Birchite
Cd
 
2
Cu
 
2
(PO
 
4
)
 
2
(SO
 
4
) · 5H
 
2
O
8.DB.75Braithwaiteite
NaCu
 
5
Ti
 
2
Sb
 
2
(AsO
 
4
)(HAsO
 
4
)
 
2
O
 
2
 · 8H
 
2
O
Related Minerals - Hey's Index Grouping:

- +
22.1.1Amblygonite
LiAl(PO
 
4
)F
22.1.2Lacroixite
NaAl(PO
 
4
)F
22.1.3Natrophosphate
Na
 
7
(PO
 
4
)
 
2
F · 19H
 
2
O
22.1.5Nacaphite
Na
 
2
Ca(PO
 
4
)F
22.1.6Arctite
Na
 
2
Ca
 
4
(PO
 
4
)
 
3
F
22.1.7Nefedovite
Na
 
5
Ca
 
4
(PO
 
4
)
 
4
F
22.1.9Fluorapatite
Ca
 
5
(PO
 
4
)
 
3
F
22.1.10Herderite
CaBePO
 
4
(F,OH)
22.1.11Isokite
CaMg(PO
 
4
)F
22.1.12Panasqueiraite
CaMg(PO
 
4
)(OH,F)
22.1.13Babefphite
BaBePO
 
4
(F,OH)
22.1.14Fluellite
Al
 
2
(PO
 
4
)(OH)F
 
2
 · 7H
 
2
O
22.1.15Minyulite
KAl
 
2
(PO
 
4
)
 
2
(OH,F) · 4H
 
2
O
22.1.16Morinite
Na
 
2
Ca
 
4
Al
 
4
(PO
 
4
)
 
4
(F,OH)
 
10
 · 3H
 
2
O
22.1.17Bøggildite
Na
 
2
Sr
 
2
Al
 
2
PO
 
4
F
 
9
22.1.18Fluorstrophite
SrCaSr
 
3
(PO
 
4
)
 
3
F
22.1.19Viitaniemiite
Na(Ca,Mn
2+
 
)Al(PO
 
4
)(F,OH)
 
3
22.1.20Väyrynenite
Mn
2+
 
BePO
 
4
(OH,F)
22.1.21Maxwellite
NaFe
3+
 
(AsO
 
4
)F
22.1.22Wagnerite
(Mg,Fe
2+
 
)
 
2
(PO
 
4
)F
22.1.23Triplite
(Mn
2+
 
,Fe
2+
 
)
 
2
(PO
 
4
)(F,OH)
22.1.24Magniotriplite
(Mg,Fe
2+
 
,Mn
2+
 
)
 
2
PO
 
4
F
22.1.25Zwieselite
Fe
2+
 
Mn
2+
 
(PO
 
4
)F
22.1.27Richellite
CaFe
3+
2
(PO
 
4
)
 
2
(OH,F)
 
2
22.1.28Svabite
Ca
 
5
(AsO
 
4
)
 
3
F
22.1.29Tilasite
CaMg(AsO
 
4
)F
22.1.30Johnbaumite-M
Ca
 
5
(AsO
 
4
)
 
3
OH
22.1.31Durangite
NaAl(AsO
 
4
)F

Other Names for Mcauslanite

Synonyms:
IMA1986-051
Other Languages:
German:Mcauslanit
Spanish:Mcauslanita

Other Information

Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Mcauslanite

Reference List:

- +
Canadian Mineralogist (1988): 26: 917-921.

American Mineralogist (1990): 75: 707-708.

Internet Links for Mcauslanite

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Mcauslanite details from Handbook of Mineralogy (PDF)
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    • Localities for Mcauslanite

    The 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.
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    (TL) indicates type locality. ? 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.
    Canada
     
    • Nova Scotia
      • Yarmouth Co.
        • Argyle
          • East Kemptville
    		J.M. Richardson, et. al., "Mcauslanite, a Supergene Hydrated Iron Aluminum Fluorophosphate from the East Kemptville Tin Mine, Yarmouth County, Nova Scotia", Can. Min., vol. 26, pg. 917-921, 1988. and J.A. Mandarino, J.M.G. Richardson, P.J. Dunn, E.T.C. Sp
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