Mindat Logo
Home Page Log In Message Board The Mindat Directory
Register Search Pages Mineral Chatroom The Mindat Store

Aldermanite

This page is currently not sponsored. Click here to sponsor this page.
Big Photo

Tom's Phosphate quarry (Tom's quarry), Kapunda, North Mt Lofty Ranges, Mt Lofty Ranges, South Australia, Australia
© J.C.Tarín

Show Aldermanite Photos (10)



Formula:
Mg
 
5
Al
 
12
(PO
 
4
)
 
8
(OH)
 
22
 · 32H
 
2
O
System:OrthorhombicColour:Colorless in transmitted ...
Lustre:Sub-Vitreous, PearlyHardness:2
Name:Named by Ian R. Harrowfield, Edgar Ralph Segnit, and John. A. Watts in 1981 in honor of Arthur Richard Alderman (1901–1980), Professor of Geology and Mineralogy, University of Adelaide, Adelaide, Australia.
This page provides mineralogical data about Aldermanite.

Classification of Aldermanite

IMA status:Approved 1980
Strunz 8th edition ID:7/D.17-10
Nickel-Strunz 10th (pending) edition ID:8.DE.35

8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
E : With only medium-sized cations, (OH, etc.):RO4 = 3:1
Dana 8th edition ID:42.13.1.1

42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
13 : Miscellaneous
Hey's CIM Ref.:19.8.10

19 : Phosphates
8 : Phosphates of Al and other metals
mindat.org URL:http://www.mindat.org/min-104.html
Please feel free to link to this page.

Type Occurrence of Aldermanite

Type Locality:Moculta Phosphate Quarry (Klemm's Quarry), Angaston, Barossa Valley, North Mt Lofty Ranges, Mt Lofty Ranges, South Australia, Australia
Place of Conservation of Type Material:C.S.I.R.O. Division of Mineral Chemistry, Melbourne, M636; Museum Victoria, Melbourne, Australia, M34778.
Geological Setting of type material:As a secondary mineral in cavities in a brecciated metamorphosed sedimentary phosphate deposit, formed by the alteration of fluellite
Associated Minerals at type locality:
LimoniteFluellite

Physical Properties of Aldermanite

Lustre:Sub-Vitreous, Pearly
Diaphaneity (Transparency):Transparent, Translucent
Colour:Colorless in transmitted light
Streak:White
Hardness (Mohs):2
Tenacity:Brittle
Cleavage:None Observed
Density (calculated):2.1 g/cm3

Crystallography of Aldermanite

Crystal System:Orthorhombic
Cell Parameters:a = 15.000Å, b = 8.330Å, c = 26.60Å
Ratio:a:b:c = 1.801 : 1 : 3.193
Unit Cell Volume:V 3,323.67 ų (Calculated from Unit Cell)
Z:2
Morphology:Frequently in talclike flakes and aggregates, to 0.1 mm.; also in clusters of transparent platy crystals.
X-Ray Powder Diffraction:
d-spacingIntensity
13.40 (100)
7.98 (80)
5.70 (30)
5.55 (60)
4.96 (30)
2.841 (50)
2.660 (30)
(

Optical Data of Aldermanite

Type:Biaxial
RI values: n = 1.500
Maximum Birefringence:δ = 0.000

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

Chemical Properties of Aldermanite

Formula:
Mg
 
5
Al
 
12
(PO
 
4
)
 
8
(OH)
 
22
 · 32H
 
2
O
Essential elements:Al, H, Mg, O, P
All elements listed in formula:Al, H, Mg, O, P

Relationship of Aldermanite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
8.DE.05Senegalite
Al
 
2
(PO
 
4
)(OH)
 
3
 · H
 
2
O
8.DE.10Fluellite
Al
 
2
(PO
 
4
)(OH)F
 
2
 · 7H
 
2
O
8.DE.15Bulachite
Al
 
2
(AsO
 
4
)(OH)
 
3
 · 3H
 
2
O
8.DE.20Zapatalite
Cu
 
3
Al
 
4
(PO
 
4
)
 
3
(OH)
 
9
 · 4H
 
2
O
8.DE.25Ceruleite
Cu
 
2
Al
 
7
(AsO
 
4
)
 
4
(OH)
 
13
 · 11.5H
 
2
O
8.DE.40Juanitaite
Bi(Cu,Ca,Fe)
 
10
(AsO
 
4
)
 
4
(OH)
 
11
 · 2H
 
2
O
8.DE.45Iangreyite
Ca
 
2
Al
 
7
(PO
 
4
)
 
2
(PO
 
3
OH)
 
2
(OH,F)
 
15
 · 8H
 
2
O
Related Minerals - Hey's Index Grouping:

- +
19.8.1Montebrasite
LiAl(PO
 
4
)(OH)
19.8.2Brazilianite
NaAl
 
3
(PO
 
4
)
 
2
(OH)
 
4
19.8.3Wardite
NaAl
 
3
(PO
 
4
)
 
2
(OH)
 
4
 · 2H
 
2
O
19.8.4Tancoite
LiNa
 
2
Al(PO
 
4
)(HPO
 
4
)(OH)
19.8.5Bertossaite
(Li,Na)
 
2
(Ca,Fe
2+
 
,Mn
2+
 
)Al
 
4
(PO
 
4
)
 
4
(OH,F)
 
4
19.8.6Tinsleyite
KAl
 
2
(PO
 
4
)
 
2
(OH) · 2H
 
2
O
19.8.7Taranakite
(K,NH
 
4
)Al
 
3
(PO
 
4
)
 
3
(OH) · 9H
 
2
O
19.8.8Francoanellite
K
 
3
Al
 
5
(PO
 
4
)
 
2
(HPO
 
4
)
 
3
 · 12H
 
2
O
19.8.9Gordonite
MgAl
 
2
(PO
 
4
)
 
2
(OH)
 
2
 · 8H
 
2
O
19.8.11Overite
CaMgAl(PO
 
4
)
 
2
(OH) · 4H
 
2
O
19.8.12Montgomeryite
Ca
 
4
MgAl
 
4
(PO
 
4
)
 
6
(OH)
 
4
 · 12H
 
2
O
19.8.14Foggite
CaAl(PO
 
4
)(OH)
 
2
 · H
 
2
O
19.8.15Gatumbaite
CaAl
 
2
(PO
 
4
)
 
2
(OH)
 
2
 · H
 
2
O
19.8.16Crandallite
CaAl
 
3
(PO
 
4
)
 
2
(OH)
 
5
 · H
 
2
O
19.8.17Matulaite
(Fe
3+
 
,Al)Al
 
7
(PO
 
4
)
 
4
(PO
 
3
OH)
 
2
(OH)
 
8
(H
 
2
O)
 
8
 · 8H
 
2
O
19.8.19Lehiite
19.8.20Millisite
(Na,K)CaAl
 
6
(PO
 
4
)
 
4
(OH)
 
9
 · 3H
 
2
O
19.8.21Englishite
K
 
3
Na
 
2
Ca
 
10
Al
 
15
(PO
 
4
)
 
21
(OH)
 
7
 · 26H
 
2
O
19.8.22Kleemanite
ZnAl
 
2
(PO
 
4
)
 
2
(OH)
 
2
 · 3H
 
2
O
19.8.23Mantienneite
KMg
 
2
Al
 
2
Ti(PO
 
4
)
 
4
(OH)
 
3
 · 15H
 
2
O
19.8.24Paulkerrite
K(Mg,Mn
2+
 
)
 
2
(Fe
3+
 
,Al,Ti,Mg)
 
2
Ti(PO
 
4
)
 
4
(OH)
 
3
 · 15H
 
2
O

Other Names for Aldermanite

Synonyms:
IMA1980-044
Other Languages:
German:Aldermanit
Simplified Chinese:直水磷镁石
Spanish:Aldermanita

Other Information

Fluorescence in UV light:Not fluorescent.
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 Aldermanite

Reference List:

- +
American Mineralogist: 66: 1099.

Ian R. Harrowfield, Edgar Ralph Segnit, and John. A. Watts, 1981, Aldermanite, a New Magnesium Aluminum Phosphate, Mineralogical Magazine: 44: 59-62.

Internet Links for Aldermanite

Search Engines:
  • Look for Aldermanite on Google
  • Look for Aldermanite images on Google
    • External Links:
  • Look for Aldermanite on Webmineral
  • Look for Aldermanite on Athena Mineralogy [Link dead]
  • Look for Aldermanite on Wikipedia
  • Look for Aldermanite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Aldermanite details from Handbook of Mineralogy (PDF)
    • Mineral Dealers:
  • Buy fine minerals and gemstones from Pala International
  • Pricedownminerals.com - Reverse Auctions and Shop
  • Top quality minerals from Kristalle of California
  • Search for minerals at Heliodor
  • Rare and Unusual minerals at Mineralogical Research Company
  • Edwards Minerals - Fine Specimens
  • Visit the Pueblo Gem and Mineral show, Tucson 2012
  • Buy from David K Joyce minerals
  • Mineral Classics - Worldwide Collector Quality Minerals and Gems
  • Buy RARE Minerals from Rocks of Africa
  • DAKOTA MATRIX offers Cabinet and Rare Species from Worldwide Localities.
  • Wilensky Fine Minerals
    • Jobs:
  • Mining & Geology Jobs

    • Localities for Aldermanite

    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.
    Hide Locality List
    (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
     
    • South Australia
      • Mt Lofty Ranges
        • North Mt Lofty Ranges
          • Barossa Valley
            • Angaston
    		Segnit, E. R., Watts, J. A. & Peisley, V. (1981): Mineralogy of the rock phosphate deposit at Moculta, South Australia. Austral. Mineral. 1 (35), 179-186; [Clark, 1993 - "Hey's Mineral Index, 3rd Edition"]
    S. Mills (in prep)
          • Kapunda
    		www.excaliburmineral.com/mina-c.htm
    Mineral and/or Locality
    Search Google
     
    Copyright © Jolyon Ralph and Ida Chau 1993-2012. 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. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
    Current server date and time: 5th Jan 2012 16:06:37
    Mineral and Locality Search
    Mineral:
    and/or Locality:
    Options
    Fade toolbar when not in focusFix toolbar to bottom of page
    Hide Social Media Links
    Slideshow frame delay seconds