Mindat Logo
Home Page Log In Message Board The Mindat Directory
Register Search Pages Chat Now! (10 online) Mindat Auctions

Hannayite

Big Photo

Skipton Caves (Skipton lava caves; Mt Widderin Caves), Mt. Widderin (Anderson's Hill), Skipton, Corangamite Shire, Victoria, Australia
© Knut Eldjarn

Formula:
(NH
 
4
)
 
2
Mg
 
3
H
 
4
(PO
 
4
)
 
4
·8H
 
2
O
System:TriclinicColour:Light yellow; colourless ...
Hardness:2 - 3
Name:After J.B. Hannay (1855- ?), English chemist, University of Manchester, England.
This page provides mineralogical data about Hannayite.

Classification of Hannayite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:7/C.23-40
Nickel-Strunz 10th (pending) edition ID:8.CH.35

8 : PHOSPHATES, ARSENATES, VANADATES
C : Phosphates without additional anions, with H2O
H : With large and medium-sized cations, RO4:H2O < 1:1
Dana 8th edition ID:39.3.5.1

39 : HYDRATED ACID PHOSPHATES,ARSENATES AND VANADATES
3 : Miscellaneous
Hey's CIM Ref.:19.3.24

19 : Phosphates
3 : Phosphates of Be and Mg
mindat.org URL:http://www.mindat.org/min-1816.html
Please feel free to link to this page.

Type Occurrence of Hannayite

Type Locality:Skipton Caves (Skipton lava caves; Mt Widderin Caves), Mt. Widderin (Anderson's Hill), Skipton, Corangamite Shire, Victoria, Australia
Year of Discovery:1878

Physical Properties of Hannayite

Colour:Light yellow; colourless in transmitted light.
Hardness (Mohs):2 - 3
Cleavage:Distinct/Good
On {001}, complete; on {110}, {1_10} and {130}, poor.
Density (measured):1.893 g/cm3

Crystallography of Hannayite

Crystal System:Triclinic
Class (H-M):1 - Pinacoidal
Cell Parameters:a = 7.7Å, b = 11.51Å, c = 6.7Å
α = 76°, β = 99.8°, γ = 115.8°
Ratio:a:b:c = 0.669 : 1 : 0.582
Unit Cell Volume:V 517.30 ų (Calculated from Unit Cell)
Morphology:Crystals small and slender, elongated [001] and striated parallel to it.

Optical Data of Hannayite

Type:Biaxial (-)
RI values: nα = 1.504 - 1.555 nβ = 1.522 - 1.572 nγ = 1.539 - 1.579
2V:Measured: 45° to 90°, Calculated: 64° to 86°
Maximum Birefringence:δ = 0.035

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Low
Dispersion:Relatively weak

Chemical Properties of Hannayite

Formula:
(NH
 
4
)
 
2
Mg
 
3
H
 
4
(PO
 
4
)
 
4
·8H
 
2
O
Essential elements:H, Mg, N, O, P
All elements listed in formula:H, Mg, N, O, P

Relationship of Hannayite to other Species

Related Minerals - Nickel-Strunz Grouping):
8.CH.05Walentaite
H(Ca,Mn
2+
 
,Fe
2+
 
)Fe
3+
3
[(AsO
 
4
,PO
 
4
)]
 
4
 · 7H
 
2
O
8.CH.10Anapaite
Ca
 
2
Fe
2+
 
[PO
 
4
]
 
2
 · 4H
 
2
O
8.CH.15Picropharmacolite
Ca
 
4
Mg[(HAsO
 
4
)
 
2
|(AsO
 
4
)
 
2
] · 11H
 
2
O
8.CH.20Dittmarite
NH
 
4
MgPO
 
4
·H
 
2
O
8.CH.20Niahite
(NH
 
4
)(Mn
2+
 
,Mg)[PO
 
4
] · H
 
2
O
8.CH.25Francoanellite
K
 
3
Al
 
5
[(HPO
 
4
)
 
3
|PO
 
4
]
 
2
 · 12H
 
2
O
8.CH.25Taranakite
(K,NH
 
4
)Al
 
3
(PO
 
4
)
 
3
OH·9H
 
2
O
8.CH.30Schertelite
(NH
 
4
)
 
2
MgH
 
2
(PO
 
4
)
 
2
·4H
 
2
O
8.CH.40Struvite
NH
 
4
MgPO
 
4
·6H
 
2
O
8.CH.40Struvite-K
KMg(PO
 
4
)·6H
 
2
O
8.CH.45Rimkorolgite
(Mg,Mn)
 
5
(Ba,Sr,Ca)(PO
 
4
)
 
4
·8H
 
2
O
8.CH.50Bakhchisaraitsevite
Na
 
2
Mg
 
5
(PO
 
4
)
 
4
·7H
 
2
O
8.CH.55Fahleite
Zn
 
5
CaFe
 
2
(AsO
 
4
)
 
6
·14H
 
2
O
8.CH.55Smolyaninovite
8.CH.55Smolianinovite
(Co,Ni,Mg,Ca)
 
3
(Fe
3+
 
,Al)
 
2
(AsO
 
4
)
 
4
·11H
 
2
O
8.CH.60Barahonaite-(Al)
(Ca,Cu,Na,Fe
3+
 
,Al)
 
12
Al
 
2
(AsO
 
4
)
 
8
(OH,Cl)
 
x
·nH
 
2
O
8.CH.60Barahonaite-(Fe)
(Ca,Cu,Na,Fe
3+
 
,Al)
 
12
Fe
3+
2
(AsO
 
4
)
 
8
(OH,Cl)
 
x
·nH
 
2
O
Related Minerals - Hey's Index Grouping:
19.3.1Moraesite
Be
 
2
[OH|PO
 
4
] · 4H
 
2
O
19.3.2Beryllonite
NaBe[PO
 
4
]
19.3.3Hurlbutite
CaBe
 
2
[PO
 
4
]
 
2
19.3.4Hydroxylherderite
CaBe[(OH,F)|PO
 
4
]
19.3.5Glucine
CaBe
 
4
[(OH)
 
2
|PO
 
4
]
 
2
 · 0.5H
 
2
O
19.3.6Fransoletite
Ca
 
3
Be
 
2
[HPO
 
4
|PO
 
4
]
 
2
 · 4H
 
2
O
19.3.7Uralolite
Ca
 
2
Be
 
4
[OH|PO
 
4
]
 
3
 · 5H
 
2
O
19.3.9Pahasapaite
Li
 
8
(Ca,Li,K)
 
10.5
Be
 
24
(PO
 
4
)
 
24
·38H
 
2
O
19.3.10Tiptopite
K
 
2
(Na,Ca)
 
2
Li
 
3
Be
 
6
[OH|(PO
 
4
)
 
3
]
 
2
 · H
 
2
O
19.3.11Gainesite
Na(Na,K)(Be,Li)Zr
 
2
[PO
 
4
]
 
4
 · 1.5-2H
 
2
O
19.3.12Roscherite
Ca(Mn
2+
 
,Fe
2+
 
)
 
5
Be
 
4
[(OH)
 
4
|(PO
 
4
)
 
6
] · 6H
 
2
O
19.3.13Faheyite
(Mn,Mg,Na)Be
 
2
Fe
 
2
(PO
 
4
)
 
4
·6H
 
2
O
19.3.14Farringtonite
Mg
 
3
[PO
 
4
]
 
2
19.3.15Holtedahlite
Mg
 
2
[OH|PO
 
4
]
19.3.16Althausite
Mg
 
2
[(OH,F)|PO
 
4
]
19.3.17Newberyite
MgHPO
 
4
·3H
 
2
O
19.3.18Phosphorrösslerite
MgHPO
 
4
·7H
 
2
O
19.3.19Bobierrite
Mg
 
3
(PO
 
4
)
 
2
·8H
 
2
O
19.3.20Barićite
(Mg,Fe)
 
3
(PO
 
4
)
 
2
·8H
 
2
O
19.3.21Panethite
(Na,Ca)
 
2
(Mg,Fe
2+
 
)
 
2
[PO
 
4
]
 
2
19.3.22Dittmarite
NH
 
4
MgPO
 
4
·H
 
2
O
19.3.23Struvite
NH
 
4
MgPO
 
4
·6H
 
2
O

Other Names for Hannayite

German names:
Hannayit
Russian names:
Ганнайит
Spanish names:
Hannayita

Other Information

Other Information:Readily soluble in acids.
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 Hannayite

Reference List:Ulrich and vom Rath (1878) Berichte Niederrheinische Gesellschaft für Natur und Heilkunde, Bonn: 35, january 7: 11.

Ulrich and vom Rath (1879) Berichte Niederrheinische Gesellschaft für Natur und Heilkunde, Bonn: 36, January 13: 5.

Goldschmidt, V. (1918) Atlas der Krystallformen. 9 volumes, atlas, and text: vol. 4: 110.

Larsen, E.S. (1921) The Microscopic Determination of the Nonopaque Minerals, First edition, USGS Bulletin 679: 83 (identity of material as Hannayite uncertain).

Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged, 1124 pp.: 699-700.

American Mineralogist (1963): 48: 635-641.

Acta Crystallographica: B32: 2842-2848.

Internet Links for Hannayite

Search Engines:
  • Look for Hannayite on Google
  • Look for Hannayite images on Google
    • External Links:
  • Look for Hannayite on Webmineral
  • Look for Hannayite on Athena Mineralogy
  • Look for Hannayite on Wikipedia
  • Look for Hannayite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Hannayite in the Natural History Museum (London) online catalogue
  • Hannayite details from Handbook of Mineralogy (PDF)
    • Mineral Dealers:
  • Wright's Rock Shop - excellent mineral specimens since 1970
  • Fabre Minerals - search for Hannayite specimens
  • Wendel Minerals - Auktion & Shop
  • Buy Fine Minerals from mineralsweb.com
  • High-end worldwide specimens & outstanding customer service
  • Search for Hannayite on minvision.com
  • rare and unusual minerals mainly crystallized
  • Buy from David K Joyce minerals
  • Fine Minerals from Dan Weinrich Minerals
  • Wilensky Fine Minerals
  • Lapis Mineral Magazin
  • The Arkenstone - Fine Minerals
    • Jobs:
  • Mining & Geology Jobs

    • Page Sponsor

    Sponsorship:This page is currently not sponsored. Click here to find out how you can sponsor this page.

    Localities for Hannayite

    Hide Locality List
    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.
    These maps work faster with Firefox!
    (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.
    Australia
     
    • Victoria
    		No reference listed
      • Corangamite Shire
        • Skipton
          • Mt. Widderin (Anderson's Hill)
    		Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 699, 700, 710.
    • Western Australia
      • Nullarbor Plain
        • Eucla
    		Min. Mag. 39,467-469(1973)
    Kenya
     
    • Rift Valley Province
      • Suswa Volcano
    		Forti, P., E. Galli & A. Rossi (2004):"Minerogenesis of volcanic caves of Kenya" , Int. J. Speleol. 32, 3-18
    Malaysia
     
    • Borneo
      • Sarawak
    		Mineralogical Magazine (1983): 47: 79-80.
    South Africa
    Minerals of South Africa
    Minerals of South Africa
    Mineral and/or Locality
    Google
     
    www.mindat.org Web
    Copyright © Jolyon & Ida Ralph 1993-2008. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register.