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Diadochite

Big Photo

Richelle, Visé, Liège Province, Belgium
© JDehove

Show Diadochite Photos (8)
Formula:
Fe
3+
2
(PO
 
4
)(SO
 
4
)(OH) · 5H
 
2
O
System:AmorphousColour:Yellow to ...
Hardness:3 - 4
Name:Named in 1837 from the Greek διάδοχος for "successor," presumably in allusion to its secondary origin.


The amorphous form of Destinezite (triclinic).

A secondary mineral occurring in gossans and coal deposits as the result of sulfate-rich solutions reacting with earlier phosphates; common in secondary phosphate assemblages in granitic pegmatites; in cave deposits, or as a post-mining product.

Classification of Diadochite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered" 1837
Strunz 8th edition ID:7/D.05-20
Strunz 9th edition ID:8.DB.05
Nickel-Strunz 10th (pending) edition ID:8.DB.05

8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
B : With only medium-sized cations, (OH, etc.):RO4< 1:1
Dana 7th edition ID:43.5.2.1
Dana 8th edition ID:43.5.2.1

43 : COMPOUND PHOSPHATES, ETC.
5 : Hydrated Compound Phosphates, etc·, Containing Hydroxyl or Halogen
Hey's CIM Ref.:22.3.25

22 : Phosphates, Arsenates or Vanadates with other Anions
3 : Phosphates, arsenates or vanadates with sulphates
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Type Occurrence of Diadochite

Co-type Localities:Richelle, Visé, Liège Province, Belgium
Arnsbach, Hockeroda, Saalfeld, Thuringia, Germany
Place of Conservation of Type Material:Mining Academy, Freiberg, Saxony, Germany: #20765.
Year of Discovery:1837

Occurrences of Diadochite

Geological Setting:Gossan deposits, coal deposits, granitic pegmatites, caves, post-mining deposition.

Physical Properties of Diadochite

Lustre:Sub-Vitreous, Waxy, Dull
Diaphaneity (Transparency):Semitransparent, Opaque
Comment:Lustre dull in earthy material and waxy, sub-vitreous or horn-like in gel masses.
Colour:Yellow to greenish-yellow or brown, reddish brown, light green, light yellow; pale yellow to yellowish brown in transmitted light.
Streak:Not reported.
Hardness (Mohs):3 - 4
Hardness Data:Measured
Tenacity:Fragile
Cleavage:None Observed
Fracture:Irregular/Uneven
Density (measured):2 - 2.4 g/cm3
Density (calculated):2.32 g/cm3

Crystallography of Diadochite

Crystal System:Amorphous
Morphology:Found as nodules or colloform crusts, massive; glassy, earthy.
Comment:The triclinic equivalent material is termed Destinezite.

Optical Data of Diadochite

Type:Biaxial (+)
RI values: nα = 1.615 nβ = 1.618 - 1.638 nγ = 1.665 - 1.670 n = 1.6 - 1.61
Maximum Birefringence:δ = 0.050 - 0.055

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Moderate
Comments:Isotropic when glassy. Measured 2V = small.

Chemical Properties of Diadochite

Formula:
Fe
3+
2
(PO
 
4
)(SO
 
4
)(OH) · 5H
 
2
O
Essential elements:Fe, H, O, P, S
All elements listed in formula:Fe, H, O, P, S

Relationship of Diadochite to other Species

Common Associates:
WavelliteVivianiteVashegyiteRoscheriteRockbridgeite
PitticitePhosphosideriteMelanteriteLimoniteLeucophosphite
JahnsiteFerrostrunziteDelvauxiteBerauniteBeraunite
Related Minerals - Nickel-Strunz Grouping):
8.DB.05Pitticite
[Fe, SO
 
4
, AsO
 
4
, H
 
2
O] ?
8.DB.05Destinezite
Fe
3+
2
[OH|SO
 
4
|PO
 
4
] · 5H
 
2
O
8.DB.10Vashegyite
Al
 
11
[(OH)
 
6
|(PO
 
4
)
 
9
] · 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[OH|(PO
 
4
)
 
2
] · 6H
 
2
O
8.DB.25Mitryaevaite
Al
 
11
[F
 
3
|(OH)
 
1.3
|(SO
 
4
)
 
1.3
|(PO
 
4
)
 
8.7
] · 30H
 
2
O
8.DB.30Sanjuanite
Al
 
2
[OH|SO
 
4
|PO
 
4
] · 9H
 
2
O
8.DB.35Sarmientite
Fe
3+
2
[OH|SO
 
4
|AsO
 
4
] · 5H
 
2
O
8.DB.40Bukovskýite
Fe
3+
2
[OH|SO
 
4
|AsO
 
4
] · 7H
 
2
O
8.DB.45Zýkaite
Fe
3+
4
[OH|SO
 
4
|(AsO
 
4
)
 
3
] · 15H
 
2
O
8.DB.50Giniite
Fe
2+
 
Fe
3+
4
[(OH)
 
5
|(PO
 
4
)
 
3
] · 2H
 
2
O
8.DB.55Sasaite
(Al,Fe
3+
 
)
 
14
[(OH)
 
7
|SO
 
4
|(PO
 
4
)
 
11
] · 83H
 
2
O
8.DB.60Mcauslanite
HFe
2+
3
Al
 
2
[F|(PO
 
4
)
 
4
] · 18H
 
2
O
8.DB.65Goldquarryite
CuCd
 
2
Al
 
3
(PO
 
4
)
 
4
F
 
2
(H
 
2
O)
 
10
(H
 
2
O,F)
 
2
8.DB.70Birchite
Cd
 
2
Cu
 
2
(PO
 
4
)
 
2
(SO
 
4
)·5H
 
2
O
Related Minerals - Hey's Index Grouping:
22.3.1Parnauite
Cu
 
9
[(OH)
 
10
|SO
 
4
|(AsO
 
4
)
 
2
] · 7H
 
2
O
22.3.2Ardealite
Ca
 
2
[HPO
 
4
|SO
 
4
] · 4H
 
2
O
22.3.3Machatschkiite
(Ca,Na)
 
6
AsO
 
4
(AsO
 
3
OH)
 
3
(PO
 
4
,SO
 
4
)·15H
 
2
O
22.3.4Clinotyrolite
Ca
 
2
Cu
 
9
[(OH,O)
 
10
|(AsO
 
4
,SO
 
4
)
 
4
] · 10H
 
2
O
22.3.5Peisleyite
Na
 
3
Al
 
16
[SO
 
4
|(PO
 
4
)
 
5
]
 
2
 · 20H
 
2
O
22.3.6Chalcophyllite
Cu
 
18
Al
 
2
[(OH)
 
9
|SO
 
4
|AsO
 
4
]
 
3
 · 33H
 
2
O
22.3.7Woodhouseite
CaAl
 
3
[(OH)
 
6
|SO
 
4
|PO
 
4
]
22.3.8Schlossmacherite
(H
 
3
O,Ca)Al
 
3
[(OH)
 
6
|(SO
 
4
,AsO
 
4
)
 
2
]
22.3.9Svanbergite
SrAl
 
3
[(OH)
 
6
|SO
 
4
|PO
 
4
]
22.3.10Kemmlitzite
(Sr,Ce)Al
 
3
[(OH)
 
6
|SO
 
4
|AsO
 
4
]
22.3.11Sanjuanite
Al
 
2
[OH|SO
 
4
|PO
 
4
] · 9H
 
2
O
22.3.12Kribergite
Al
 
5
[(OH)
 
4
|SO
 
4
|(PO
 
4
)
 
3
] · 4H
 
2
O
22.3.13Hotsonite
Al
 
11
[(OH)
 
21
|(SO
 
4
)
 
3
|(PO
 
4
)
 
2
] · 16H
 
2
O
22.3.14Weilerite
22.3.15Tsumebite
Pb
 
2
Cu[OH|SO
 
4
|PO
 
4
]
22.3.16Arsentsumebite
Pb
 
2
Cu[OH|SO
 
4
|AsO
 
4
]
22.3.17Hinsdalite
PbAl
 
3
[(OH)
 
6
|SO
 
4
|PO
 
4
]
22.3.18Hidalgoite
PbAl
 
3
[(OH)
 
6
|SO
 
4
|AsO
 
4
]
22.3.19Orpheite
PbAl
 
3
[(OH)
 
6
|(PO
 
4
,SO
 
4
)
 
2
] (?)
22.3.20Coconinoite
Fe
3+
2
Al
 
2
(UO
 
2
)
 
2
[(OH)
 
2
|SO
 
4
|(PO
 
4
)
 
4
] · 20H
 
2
O
22.3.21Sasaite
(Al,Fe
3+
 
)
 
14
[(OH)
 
7
|SO
 
4
|(PO
 
4
)
 
11
] · 83H
 
2
O
22.3.22Tristramite
(Ca,U,Fe)(PO
 
4
,SO
 
4
)·2H
 
2
O
22.3.23Corkite
PbFe
 
3
[(OH)
 
6
|SO
 
4
|PO
 
4
]
22.3.24Beudantite
PbFe
 
3
[(OH)
 
6
|SO
 
4
|AsO
 
4
]
22.3.26Sarmientite
Fe
3+
2
[OH|SO
 
4
|AsO
 
4
] · 5H
 
2
O
22.3.27Bukovskýite
Fe
3+
2
[OH|SO
 
4
|AsO
 
4
] · 7H
 
2
O
22.3.28Zýkaite
Fe
3+
4
[OH|SO
 
4
|(AsO
 
4
)
 
3
] · 15H
 
2
O
22.3.29Tooeleite
Fe
3+
6
(AsO
 
3
)
 
4
(SO
 
4
)(OH)
 
4
· 4H
 
2
O
22.3.30Pitticite
[Fe, SO
 
4
, AsO
 
4
, H
 
2
O] ?
22.3.31Xiangjiangite
(Fe
3+
 
,Al)(UO
 
2
)
 
4
[OH|(SO
 
4
)
 
2
|(PO
 
4
)
 
2
] · 22H
 
2
O

Other Names for Diadochite

Synonyms:
Orthodiadochite
German names:
DiadochitPhosphoreisensinter
Russian names:
Диадохит
Spanish names:
Diadochita
Varieties:
Geldiadochite

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 Diadochite

Reference List:Breithaupt (1837) Journal für praktische Chemie, Leipzig: 10: 503 (as Diadochit).

Feistmantel (1873) Lotos: 23: 33.

Rammelsberg, C.F. (1875) Handbuch der Mineralchemie. second edition: 331.

Carnot (1880) Bulletin de la Société française de Minéralogie: 3: 40.

Cesàro (1885) Mém. Soc. belge geol.: 12: 173.

Dana, E.S. (1892) System of Mineralogy, 6th. Edition, New York: 867.

Cesàro (1897) Mém. Ac. Sc. Belge: 53: 1.

Cornu (1909) Centralblatt für Mineralogie, Geologie und Paleontologie, Stuttgart: 330 (as Geldiadochite).

Cornu (1909) Zeitschrift Chem. Ind. Kolloide: 4: 17 (as Geldiadochite).

Larsen, E.S. (1921) The Microscopic Determination of the Nonopaque Minerals, First edition, USGS Bulletin 679: 67.

Ulrich (1922) Rozpr. České Ak.: 31: no. 10.

Hintze, Carl (1931) Handbuch der Mineralogie. Berlin and Leipzig. 6 volumes: 1 [4B]: 750, 755, 1073.

Mélon and Donnay (1936) Bulletin de la Sociètè Belge de Gèologie: 59: B162.

Rogers (1938) American Mineralogist: 23: 178.

McConnell (1942) American Journal of Science: 240: 656.

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.: 1011-1013.

Acta Univ. Carol., Prague, Geol. (1960): 127-152.

Van Tassel, R. (1985) Mineraux phosphates secondaires (vashegyite, destinezite [= diadochite], wavellite, crandallite, phosphate de fer) a Haut-le-Wastia, province de Namur (Belgique). Bull. Soc. Belge G´eol., 94, 19–27 (in French with English abs.).

Gaines, Richard V., H. Catherine, W. Skinner, Eugene E. Foord, Brian Mason, Abraham Rosenzweig (19 ), Dana's New Mineralogy : The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana: 966.

Peacor, D.R., Rouse, R.C., Coskren, T.D., and Essene, E.J. (1999) Destinezite ("diadochite"), Fe2(PO4)(SO4)(OH)·6(H2O): its crystal structure and role as a soil mineral at Alum Cave Bluff, Tennessee, Clays and Clay Minerals, 47, 1-11.

Jambor, J.L. and A.C. Roberts (2000) New Mineral Names. American Mineralogist: 85: 263-266.

Internet Links for Diadochite

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    Localities for Diadochite

    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.
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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.
    Angola
     
    • Huíla Province
      • Lubango City Council
    		Martins da Pedra collection
    Austria
     
    • Carinthia
      • Gurktaler Alpen Mts
        • Flattnitz
    		G. Niedermayr, I. Praetzel: Mineralien Kärntens, 1995
    • Styria
      • Leoben
    		R. Exel: Die Mineralien und Erzlagerstätten Österreichs (1993)
    Belgium
     
    • Hainaut (Henegouwen; Hennegau) Province
      • Mons
    		No reference listed
    • Liège Province
      • Visé
    		No reference listed
    • Namur Province
      • Anhée
    		No reference listed
    Bolivia
     
    • Oruro Department
      • Cercado Province
    		[MinRec 32:476]
    • Potosí Department
      • Bustillos Province
        • Llallagua
    		[MinRec 32:474]
    Canada
     
    • Yukon Territory
      • Dawson Mining District
    		MinRec 23:4-47
    No reference listed
    Czech Republic
     
    • Bohemia (Böhmen; Boehmen)
      • Central Bohemia Region
        • Hořovice (Horschowitz; Horowitz)
    		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: 1013.
      • Karlovy Vary Region
        • Krušné Hory Mts (Erzgebirge)
          • Ostrov
    		Lapis 2002(7/8), 63-65
      • Pardubice Region
    		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: 1013; Prachař, I.: Současný stav výskytu nerostů ve Chvaleticích. Acta musei Reginaehradecensis, série A: vědy přírodní, 1981, roč. XVI., s. 99-102.
    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: 1013; Jirásek, J.: Nález koninckitu u Litošic a jeho srovnání se světovými výskyty. Bulletin mineralogicko-petrografického oddělení Národního muzea v Praze, 2005, roč. 13, s. 132-137.
    France
     
    • Brittany
      • Finistère
        • Huelgoat
    		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: 1012; R. PIERROT, L. CHAURIS, C. LAFORET (1973) : "Inventaire minéralogique de la France : 29- Finistère.", B.R.G.M. Paris.
    • Rhône-Alpes
      • Isère
        • Peycheguard
    		Dana, E.S. (1892) System of Mineralogy, 6th. Edition, New York: 867; 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: 1012.
    Germany
     
    • Baden-Württemberg
      • Black Forest
        • Gengenbach
          • Haigerach valley
    		Lapis 21(12), 39 (1996)
        • Wolfach
          • Oberwolfach
            • Rankach valley
    		WALENTA, K. (1997): Neue Mineralfunde von der Grube Clara 7. Folge. - Lapis 22 (11), 37-47.
    • Bavaria
      • Lower Bavaria
        • Bavarian Forest
          • Zwiesel
            • Rabenstein
    		Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
    • North Rhine-Westphalia
      • Eifel Mts
    		Weiss: "Mineralfundstellen, Deutschland West", 1990
      • Sauerland
        • Arnsberg
          • Uentrop
    		S. Weiß: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
    • Saxony
      • Erzgebirge
    		Wittern: "Mineralfundorte in Deutschland", 2001
    • Thuringia
      • Gera
        • Ronneburg U deposit
    		T. Witzke & F. Rüger: Lapis 1998(7/8), 26-64
      • Saalfeld
        • Garnsdorf
    		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: 1012.
        • Hockeroda
    		Journ. prakt. Chem.(1837): 10, 503; 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: 1012; Clark, 1993, "Hey's Mineral Index"]
    Hungary
     
    • Heves Co.
      • Mátra Mts.
        • Mátraszentimre
    		Szakáll & Jánosi: Minerals of Hungary, 1995
    Italy
     
    • Sardinia
      • Cagliari Province
        • Capoterra
    		Olmi F., Sabelli C., Senesi F., Stara P., 2002. La mineralizzazione uranifera di Arcu su Linnarbu. Riv. Miner. Ital., 3: 148-169.
    Romania
     
    • Maramures Co.
      • Baia Mare (Nagybánya)
    		Huber, P. & Muresan,I. (1996): Die Erzlagerstätte Herja - Eisen-, Blei- und Antimonminerale aus der Erzlagerstätte Herja (Herzsabánya). Lapis, 21 (7), 27ff. (in German)
    Slovakia
     
    • Banská Bystrica Region
      • Kremnica Mts
    		Ďuďa R., 1993 : Die mineralien der Gold und Silber - lagersttäte von Kremnitz ( Kremnica) in der Slowakei. Mineralien Welt /Haltern,Nemecko/,5, s. 20 - 32
      • Štiavnica Mts
        • Banská Štiavnica Mining District
          • Vyhne
    		Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590
      • Western Slovenské Rudohorie Mts
        • Sirk (Szirk)
    		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: 1013; Grecula,P. et al. (1995) Ložiska nerastných surovín Slovenského rudohoria. Zväz.1, Bratislava, 834 s
    • Bratislava Region
      • Malé Karpaty Mts
        • Pezinok
    		[MinRec 31:153-162]
    • Prešov Region
      • Northern Slanské Mts
        • Červenica (Czerwenitza)
          • Dubník
    		Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590
    UK
     
    • England
      • Cornwall
        • St Agnes District
          • Perranzabuloe
    		No reference listed
    USA
     
    • Arkansas
      • Garland Co.
        • Wilson Springs (Potash Sulfur Springs)
    		Rocks & Min.: 63:108.
      • Polk Co.
        • Shady
    		Am Min 51:1811-1814
    • California
      • San Benito Co.
        • New Idria District
          • Idria
    		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: 1013.
    • Colorado
      • Summit Co.
        • Montezuma District (Snake River District)
    		Minerals of Colorado (1997) Eckels, E. B.
    • Connecticut
      • Middlesex Co.
        • East Hampton
    		Januzzi, 1976. Mineral Localities of CT and Southeastern NY State
    • Maine
      • Androscoggin Co.
        • Auburn
          • Mt. Apatite District
    		No reference listed
    "Maine Mineral Localities, 3rd Ed." by Thompson, W.B., et.al., 1998
      • Cumberland Co.
        • Baldwin
    		No reference listed
      • Oxford Co.
        • Greenwood
    		"Maine Mineral Localities, 3rd Ed." by Thompson, W.B., et.al. 1998
        • Newry
    		No reference listed
    King, V. T., 2006, Minerals of Halls Ridge and Plumbago-Puzzle Mountain, Newry, ... Maine, Mineral News, v. 22(6): p. 1-3.
        • Paris
        • Peru
    		No reference listed
        • Stoneham
    		No reference listed
    • Massachusetts
      • Essex Co.
        • Andover
    		Gleba, 1978. Mass. Mineral & Fossil Loc.
    • Missouri
      • Jasper Co.
    		Rocks & Min., March 1998.
    • Nevada
      • Eureka Co.
        • Gibellini District
    		NBMG Spec. Pub. 31 Minerals of Nevada
    [Clark, 1993, "Hey's Mineral Index"]
    • New Hampshire
      • Cheshire Co.
        • Alstead
    		No reference listed
      • Grafton Co.
        • Groton
    		No reference listed
    Whitmore & Lawrence, 2004. The Pegmatite Mines Known As Palermo, p. 96.
      • Strafford Co.
        • Farmington
    		No reference listed
        • Strafford
    		Rocks & Min. 39:355 (1964)
    • North Carolina
      • Cleveland Co.
        • Kings Mountain District
    • Ohio
      • Coshocton Co.
        • Jackson township
    		Minerals of Ohio Bull. 69 ODNR
      • Perry Co.
    		Harvard Museum of Natural History specimen no. 119716
    • Oklahoma
      • Ottawa Co.
    		Rocks & Min. vol. 72 (1997)
    www.brightok.net/~rockman/Images/OkIndex.htm.
    • South Dakota
      • Custer Co.
        • Custer District
          • Fourmile
    		Mineralogical Record: 17: 237-254; Rocks & Minerals: 60: 117.
      • Pennington Co.
        • Keystone District
          • Glendale
    		Rocks & Minerals: 60: 116.
        • Keystone Gold District
    		SDSMT Bull 18 Roberts and Rapp "Mineralogy of the Black Hills"
    • Utah
      • Emery Co.
        • San Rafael District (San Rafael Swell)
          • Calf Mesa
    		UGMS Bull 117 Minerals and Mineral Localities of Utah
    Am.Min.40:469
    Mineral and/or Locality
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