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Thorogummite

Big Photo

Androtsabo (Androtsabo South; Marovoalava), Tranomaro Commune, Amboasary Department, Anosy (Fort Dauphin) Region, Tuléar (Toliara) Province, Madagascar
© Arliguie M

Show Thorogummite Photos (3)
Formula:
(Th,U)[(OH)
 
4x
|(SiO
 
4
)
 
1-x
]
System:TetragonalColour:Yellow-brown, ...
Hardness:5½
Name:Named for its thorium content and Lat. "gummi", gum, alluding to its gum-like appearance;


Zircon Group

Classification of Thorogummite

IMA status:Questionable/Doubtful
Strunz 8th edition ID:8/A.09-50
Nickel-Strunz 10th (pending) edition ID:9.AD.30

9 : SILICATES (Germanates)
A : Nesosilicates
D : Nesosilicates without additional anions; cations in [6] and/or greater coordination
Dana 8th edition ID:51.5.2.5

51 : NESOSILICATES Insular SiO4 Groups Only
5 : Insular SiO4 Groups Only with cations in >[6] coordination
Hey's CIM Ref.:14.16.14

14 : Silicates not Containing Aluminum
16 : Silicates of U
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Type Occurrence of Thorogummite

Type Locality:Baringer Hill (Barringer Hill), Bluffton, Llano Co., Texas, USA
Year of Discovery:1889

Physical Properties of Thorogummite

Lustre:Waxy, Dull
Colour:Yellow-brown, yellow-green, black
Hardness (Mohs):5½

Crystallography of Thorogummite

Crystal System:Tetragonal
Cell Parameters:a = 7.06Å, c = 6.26Å
Ratio:a:c = 1 : 0.887
Unit Cell Volume:V 312.02 ų (Calculated from Unit Cell)

Chemical Properties of Thorogummite

Formula:
(Th,U)[(OH)
 
4x
|(SiO
 
4
)
 
1-x
]
Essential elements:H, O, Si, Th
All elements listed in formula:H, O, Si, Th, U
Common Impurities:U,Al,Fe,Pb,Mg,Ca,H2O,P,C

Relationship of Thorogummite to other Species

Related Minerals - Nickel-Strunz Grouping):
9.AD.05Larnite
Ca
 
2
[SiO
 
4
]
9.AD.05Calcio-Olivine
Ca
 
2
[SiO
 
4
]
9.AD.15Merwinite
Ca
 
3
Mg[SiO
 
4
]
 
2
9.AD.20Bredigite
Ca
 
7
Mg[SiO
 
4
]
 
4
9.AD.25Andradite
Ca
 
3
Fe
3+
2
[SiO
 
4
]
 
3
9.AD.25Almandine
Fe
2+
3
Al
 
2
[SiO
 
4
]
 
3
9.AD.25Calderite
(Mn
2+
 
,Ca)
 
3
(Fe
3+
 
,Al)
 
2
[SiO
 
4
]
 
3
9.AD.25Goldmanite
Ca
 
3
(V
3+
 
,Al,Fe
3+
 
)
 
2
[SiO
 
4
]
 
3
9.AD.25Grossular
Ca
 
3
Al
 
2
[SiO
 
4
]
 
3
9.AD.25Henritermierite
Ca
 
3
(Mn
3+
 
,Al)
 
2
[(OH)
 
4
|(SiO
 
4
)
 
2
]
9.AD.25Hibschite
Ca
 
3
Al
 
2
[(OH)
 
6-1
|(SiO
 
4
)
 
1.5-2.5
]
9.AD.25Hydroandradite
9.AD.25Katoite
Ca
 
3
Al
 
2
[(OH)
 
8-6
|(SiO
 
4
)
 
1-1.5
]
9.AD.25Kimzeyite
Ca
 
3
(Zr,Ti)
 
2
[(Si,Al,Fe
3+
 
)O
 
4
]
 
3
9.AD.25Knorringite
Mg
 
3
Cr
 
2
[SiO
 
4
]
 
3
9.AD.25Majorite
Mg
 
3
(Fe
2+
 
,Si,Al)
 
2
[SiO
 
4
]
 
3
9.AD.25Morimotoite
Ca
 
3
(Ti,Fe
2+
 
,Fe
3+
 
)
 
2
[(Si,Fe
3+
 
)O
 
4
]
 
3
 (?)
9.AD.25Pyrope
Mg
 
3
Al
 
2
[SiO
 
4
]
 
3
9.AD.25Schorlomite
Ca
 
3
(Ti,Fe
3+
 
)
 
2
[(Si,Fe
3+
 
,Fe
2+
 
)O
 
4
]
 
3
9.AD.25Spessartine
Mn
2+
3
Al
 
2
[SiO
 
4
]
 
3
9.AD.25Uvarovite
Ca
 
3
Cr
 
2
[SiO
 
4
]
 
3
9.AD.25Wadalite
Ca
 
6
(Al,Mg)
 
4
[Cl
 
3
|O
 
4
|{(Si,Al,Fe
3+
 
)O
 
4
}
 
3
]
9.AD.25Holtstamite
Ca
 
3
(Al,Mn
3+
 
)
 
2
(SiO
 
4
)
 
2
(OH)
 
4
9.AD.30Coffinite
(U,Th)[(OH)
 
4x
|(SiO
 
4
)
 
1-x
]
9.AD.30Hafnon
(Hf,Zr)[SiO
 
4
]
9.AD.30Thorite
(Th,U)[SiO
 
4
]
9.AD.30Zircon
Zr[SiO
 
4
]
9.AD.35Huttonite
Th[SiO
 
4
]
9.AD.35Tombarthite-(Y)
Y
 
4
[HSiO
 
4
]
 
3
9.AD.40Eulytine
Bi
 
4
[SiO
 
4
]
 
3
9.AD.45Reidite
Zr[SiO
 
4
]
Related Minerals - Hey's Index Grouping:
14.16.1Uranosilite
UO
 
3
 · 7SiO
 
2
14.16.2Coffinite
(U,Th)[(OH)
 
4x
|(SiO
 
4
)
 
1-x
]
14.16.3Soddyite
(UO
 
2
)
 
2
SiO
 
4
·2H
 
2
O
14.16.4Swamboite
UH
 
6
(UO
 
2
)
 
6
(SiO
 
4
)
 
6
·30H
 
2
O
14.16.5Weeksite
K
 
2
(UO
 
2
)
 
2
(Si
 
2
O
 
5
)
 
3
·4H
 
2
O
14.16.6Boltwoodite
(K,Na)(UO
 
2
)[HSiO
 
4
] · 0.5H
 
2
O
14.16.7Natroboltwoodite
(H
 
3
O)(Na,K)UO
 
2
SiO
 
4
·H
 
2
O
14.16.8Cuprosklodowskite
Cu(UO
 
2
)
 
2
[HSiO
 
4
]
 
2
 · 6H
 
2
O
14.16.9Sklodowskite
Mg(UO
 
2
)
 
2
[HSiO
 
4
]
 
2
 · 5H
 
2
O
14.16.10Uranophane
Ca(UO
 
2
)
 
2
[HSiO
 
4
]
 
2
 · 5H
 
2
O
14.16.11β-Uranophane
Ca(UO
 
2
)
 
2
[HSiO
 
4
]
 
2
 · 5H
 
2
O
14.16.12Haiweeite
Ca(UO
 
2
)
 
2
[Si
 
5
O
 
12
(OH)
 
2
]·4.5H
 
2
O
14.16.13Metahaiweeite
Ca(UO
 
2
)
 
2
Si
 
6
O
 
15
·nH
 
2
O
14.16.15Steacyite
([ ],K)(Na,Ca)
 
2
(Th,U)[Si
 
8
O
 
20
]
14.16.16Ekanite
(Ca,Fe
2+
 
,Pb)
 
2
(Th,U)[Si
 
8
O
 
20
]
14.16.17Kasolite
Pb(UO
 
2
)[SiO
 
4
] · H
 
2
O
14.16.18 Orlite
Pb
 
3
(UO
 
2
)
 
3
(Si
 
2
O
 
7
)
 
2
·6H
 
2
O
14.16.19Oursinite
(Co,Mg)(UO
 
2
)
 
2
[HSiO
 
4
]
 
2
 · 6H
 
2
O

Other Names for Thorogummite

Synonyms:
ChlorothoriteHydrothoriteMackintoshiteMaitlanditeNicolayite
German names:
ChlorothoritMackintoshitMaitlanditNicolayitThorogummit
Spanish names:
ChlorothoritaMackintoshitaMaitlanditaNicolayitaThorogummita

Other Information

Health Warning:Contains thorium and uranium - always wash hands after handling. Avoid inhaling dust when handling or breaking. Never lick or ingest. Avoid prolonged exposure in proximity of the body. Store away from inhabited areas.

References for Thorogummite

Reference List:American Journal of Science (1889): 138: 480.

American Mineralogist (1953): 38: 1007-1018.

Canadian Mineralogist (1989): 27: 643.

Internet Links for Thorogummite

Search Engines:
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    • External Links:
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    Localities for Thorogummite

    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.
    Australia
     
    • Western Australia
      • Pilbara Region
    		AmMin 13:457
    Brazil
     
    • Southeast Region
      • Minas Gerais
        • Poços de Caldas
    		Baretto & Fujimori (1986)
    Canada
     
    • Ontario
      • Haliburton Co.
        • Cardiff Township
          • Hall Lake
    		Ref.: Geological Survey of Canada Miscellaneous Report 39.
      • Hastings Co.
        • Bancroft District
          • Monteagle Township
            • Hybla
    		ontariominerals.com
      • Thunder Bay District
        • Marathon
    		Potter & Mitchel (2005)
    • Québec
      • Papineau Co.
        • Portland Township
          • St-Pierre-de-Wakefield
    		Geological Survey of Canada Miscellaneous Report 41.
      • Rouville Co.
        • Mont Saint-Hilaire
    		Horváth, L and Gault, R.A. (1990), The mineralogy of Mont Saint-Hilaire Quebec. Mineralogical Record: 21: 284-359.
    • Yukon Territory
    Czech Republic
     
    • Moravia (Mähren; Maehren)
      • Olomouc Region
        • Prostějov area
    		Škoda R., Čopjakova R. 2006: Authigenic REE mineralsfrom greywackes of the Drahany Uplands, Czech Republic and their significance for diagenetic processes. Mineralogia Polonica, vol. 28, 208-210
      • South Moravia Region
        • Moravský Krumlov
    		Filip, J., Houzar, S., Sulovský, P.: Allanit a produkty jeho přeměny z pegmatitu a ze skarnu u Rešic, západní Morava. Acta Musei Moraviae, Scientiae geologicae, 2002, roč. 87, s. 87 - 101.
    France
     
    • Rhône-Alpes
      • Haute-Savoie
        • Chamonix
          • Mt Blanc Massif
    		Cuchet, S., Schnyder, C. & Meisser, N. (2003): Les minéraux de L'A Neuve. Schweizer Strahler / Le Cristallier Suisse, Nr. 3, 28-37.
    Germany
     
    • Bavaria
      • Franconia
        • Spessart Mts
          • Aschaffenburg
            • Dörrmorsbach
    		A. Wittern: "Mineralfundorte in Deutschland", Schweizerbart (Stuttgart), 2001
    Greenland
     
    • Kitaa (West Greenland) Province
      • Arsuk
        • Arsuk Firth
          • Ivittuut (Ivigtut)
    		[www.hedegaard.com]
    Italy
     
    • Tuscany
      • Massa-Carrara Province
        • Apuan Alps
    		Orlandi P., Franzini M., 1994. I minerali del marmo di Carrara. Amilcare Pizzi S.p.A., Milano.
    Orlandi P., Franzini M., 1994. I minerali del marmo di Carrara. Amilcare Pizzi S.p.A., Milano.
    Japan
     
    • Honshu Island
      • Chugoku Region
        • Hiroshima Prefecture
          • Hiroshima City
    		alfredo petrov specimens
      • Tohoku Region
        • Fukushima Prefecture
    		Introduction to Japanese Minerals (Geological Survey of Japan, 1970)
          • Kawamata
            • Iizaka (Iisaka) Village
    Madagascar
     
    • Antananarivo Province
      • Itasy Region
        • Soavinandriana Department
          • Mahavelona Commune
    		J.Behier (1963): Carte mineralogique de Madagascar. Archive Serv. Geol.Mad. A 1871
    • Tuléar (Toliara) Province
      • Anosy (Fort Dauphin) Region
        • Amboasary Department
          • Maromby Commune
            • Belafa area
    		Besaire,H. (1966): Gites mineraux de Madagascar. Ann.Geol.Mad. XXXIV
    Besaire,H. (1966): Gites mineraux de Madagascar. Ann.Geol.Mad. XXXIV
    Besaire,H.(1966): Gites mineraux de Madagascar.Ann.Geo.Mad XXXIV,Tananarive
          • Tranomaro Commune
    		Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Géologique Madagascar. A 1871
    Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Géologique Madagascar. A 1871
    Behier, J. (1960): Contribution á la mineralogie de Madagascar. Annales Géologiques de Madagascar XXIX, Tananarive, p 72
    Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Géologique Madagascar. A 1871
    Mozambique
     
    • Zambezia Province
      • Alto Ligonha District
    		No reference listed
    Norway
     
    • Aust-Agder
      • Evje og Hornnes
        • Flatebygd
    		Åmli, R. (1969): Secondary uranium and thorium minerals from Einerkilen granite pegmatite in Evje, Southern Norway. Norges Geologiske Undersøkelse 258 [Årbok 1968]: 124-130 + Neumann (1985, p. 140).
        • Landsverk
    		Info. board at the mine, 2005.
      • Gjerstad
    		R. Werner; "Stein", 4, 1993, p. 224.
    • Nord-Trøndelag
    		Grønlie (1984); Neumann (1985, p. 140).
      • Levanger
    		Grønlie (1984); Neumann (1985, p. 140).
    Poland
     
    • Lower Silesia (Dolnośląskie)
    Slovakia
     
    • Košice Region
      • Eastern Slovenské Rudohorie Mts
    		Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590k
        • Rožňava (Rozsnyo; Rosenau) Mining District
          • Čučma (Csucsom; Tschutschma)
            • Stredná Hora hill
    		Peterec D., Ďuďa R., 2003 : Zriedkavé miberály Mn – ložiska pri Čučme. Natura Carpatica (Košice), 44, s.229-236
    Sweden
     
    • Jämtland
      • Krokom
    • Lappland
      • Jokkmokk
    		No reference listed
    • Småland
      • Växjö
        • Asa
    		See above.
      • Vetlanda
        • Alseda
    		J.Langhof: REE-mineralogy in Mo-granite pegmatites in Vetlanda-area, Småland,Sweden. 1991
    H.-J.Wilke: Die Mineralien und Fundstellen von Schweden.1997
          • Slättåkra
    		H.-J.Wilke: Die Mineralien und Fundstellen von Schweden.1997
    USA
     
    • California
      • Riverside Co.
        • Crestmore
    		[micromounts@yahoogroups.com]
        • Nuevo
    San Diego Natural History Museum
    • Colorado
      • Boulder Co.
        • Jamestown District
          • Jamestown
    		Minerals of Colorado (1997) Eckels, E. B.
      • Chaffee Co.
        • Buena Vista
    		Minerals of Colorado (1997) E.B. Eckels
      • Custer Co.
        • Wet Mountains Area
    		Minerals of Colorado (1997) E.B. Eckels
      • El Paso Co.
    		Minerals of Colorado (1997) E.B. Eckels
    Minerals of Colorado (1997) E.B. Eckels
      • Fremont Co.
    		"Minerals of Colorado, updated & revised", p. 16, by Eckel, Edwin B., 1997
      • Gunnison Co.
        • White Earth District (Powderhorn District)
    		"Minerals of Colorado, updated & revised", p. 17, by Eckel, Edwin B., 1997
      • Jefferson Co.
        • South Platte Pegmatite District
    		Minerals of Colorado (1997) E.B. Eckels
    Rare-Earth Pegmatites of the South Platte District, Colorado CGS Res Ser 11
    • Connecticut
      • Fairfield Co.
    		Januzzi, 1976. Mineral Localities of CT and Southeastern NY State
    • Maine
      • Sagadahoc Co.
        • Topsham
    		King & Foord, 1994. Mineralogy of Maine, V. 1.
    • Nevada
      • Mineral Co.
        • Fitting District
    		NBMG Spec Pub 31 Minerals of Nevada
    • New Mexico
      • Sierra Co.
    		Northrop, Minerals of New Mexico, 3rd Rev. Ed., 1996
      • Taos Co.
    		Minerals of New Mexico 3rd ed.
    A Listing of North Carolina Minerals- Leonard S. Wiener and Sigrid Ballew-1995
    Kenny Gay - North Carolina Geological Survey
    Kenny Gay -North Carolina Geological Survey
    • Pennsylvania
      • Northampton Co.
        • Easton
    		Lapham & Geyer, 1965. Mineral Collecting in Pennsylvania
    Rocks & Min.: 17:344.; Am.Min.: 45: 39-52
    Rocks & Min.: 11:90.
    • Texas
      • Llano Co.
    		R&M 66:3 pp 196-224
        • Bluffton
    		AM 38 (1953), 1007
        • Kingsland Granite Company quarry (Petrick quarry)
    		Self-collected by Franklin Roberts.
    R&M 66:3 pp 196-224
    • Virginia
      • Amherst Co.
    		Minerals of Virginia 1990 by R. V. Dietrich
      • Bedford Co.
        • Moneta-Forest
    		Minerals of Virginia 1990 by R. V. Dietrich
      • Rappahannock Co.
    		Minerals of Virginia 1990 by R. V. Dietrich
      • Roanoke Co.
        • Roanoke
    		Minerals of Virginia 1990 by R. V. Dietrich
    • Wisconsin
      • Marathon Co.
    		Rocks & Min.: 62: 190-193.
        • Wausau pluton
    		R&M 73:11-12 pp 378-399 Wisconsin Mineral Locality Index
      • Wood Co.
        • Vesper
    Mineral and/or Locality
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