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Galaxite

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Galaxite

Nordmark Odal Field, Filipstad, Värmland, Sweden
Galaxite

Nordmark Odal Field, Filipstad, Värmland, Sweden
Galaxite, etc.

Bald Knob deposit, Bald Knob, Sparta, Alleghany Co., North Carolina, USA
Galaxite

Nordmark Odal Field, Filipstad, Värmland, Sweden
Galaxite

Nordmark Odal Field, Filipstad, Värmland, Sweden
Galaxite, etc.

Bald Knob deposit, Bald Knob, Sparta, Alleghany Co., North Carolina, USA
Galaxite

Nordmark Odal Field, Filipstad, Värmland, Sweden
Galaxite

Nordmark Odal Field, Filipstad, Värmland, Sweden
Formula:
Mn2+Al2O4
System:
Isometric
Colour:
Red, brown
Lustre:
Vitreous
Hardness:
7½
Member of:
Name:
The type locality (Bald Knob deposit, Alleghany Co., North Carolina, USA) is near Galax (Virginia). The mineral has been named for Galax and for the plant galax urceolata, after which the town is named.
Spinel Group, Al series.


Classification of Galaxite

IMA status:
Approved, 'Grandfathered' (first described prior to 1959)
Strunz 8th ed.:
4/B.01-30
Nickel-Strunz 10th (pending) ed.:
4.BB.05

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
B : Metal: Oxygen = 3:4 and similar
B : With only medium-sized cations
Dana 8th ed.:
7.2.1.2

7 : MULTIPLE OXIDES
2 : AB2X4
Hey's CIM Ref.:
7.19.5

7 : Oxides and Hydroxides
19 : Oxides of Mn and Fe

Physical Properties of Galaxite

Lustre:
Vitreous
Colour:
Red, brown
Streak:
Brownish red
Hardness (Mohs):
7½
Tenacity:
Brittle
Fracture:
Conchoidal
Density:
4.03 g/cm3 (Calculated)

Optical Data of Galaxite

Type:
Isotropic

Chemical Properties of Galaxite

Formula:
Mn2+Al2O4
Elements listed in formula:
Al, Mn, O - search for minerals with similar chemistry

Crystallography of Galaxite

Crystal System:
Isometric
Class (H-M):
m3m (4/m 3 2/m) - Hexoctahedral
Space Group:
Fd3m
Cell Parameters:
a = 8.271 Å
Unit Cell Volume:
V 565.81 ų (Calculated from Unit Cell)
Morphology:
Massive.

Type Occurrence of Galaxite

Type Locality:
Bald Knob deposit (Primary ore body; Crouse Knob deposit), Bald Knob, Sparta, Alleghany Co., North Carolina, USA

Relationship of Galaxite to other Species

Member of:
Spinel Group
Other Members of Group:
ChromiteFe2+Cr23+O4
Cochromite(Co,Ni,Fe)(Cr,Al)2O4
CoulsoniteFe2+V23+O4
CuprospinelCu2+Fe23+O4
Filipstadite(Sb0.5Fe0.5)Mn2O4
FrankliniteZn2+Fe23+O4
GahniteZnAl2O4
HercyniteFe2+Al2O4
JacobsiteMn2+Fe23+O4
MagnesiochromiteMgCr2O4
MagnesiocoulsoniteMgV2O4
MagnesioferriteMgFe23+O4
MagnetiteFe2+Fe23+O4
ManganochromiteMn2+Cr2O4
Nichromite(Ni,Co,Fe)(Cr,Fe,Al)2O4
Qandilite(Mg,Fe3+)2(Ti,Fe3+,Al)O4
SpinelMgAl2O4
TrevoriteNi2+Fe23+O4
UlvöspinelFe2TiO4
VuorelaineniteMn2+V23+O4
XieiteFe2+Cr2O4
ZincochromiteZnCr2O4
Related Minerals - Nickel-Strunz Grouping):
4.BB.05ChromiteFe2+Cr2O4
4.BB.05CochromiteCoCr2O4
4.BB.05CoulsoniteFe2+V23+O4
4.BB.05CuprospinelCu2+Fe23+O4
4.BB.05Filipstadite(Mn2+,Mg)2(Sb5+,Fe3+)O4
4.BB.05FrankliniteZnFe23+O4
4.BB.05GahniteZnAl2O4
4.BB.05HercyniteFe2+Al2O4
4.BB.05JacobsiteMn2+Fe23+O4
4.BB.05ManganochromiteMn2+Cr2O4
4.BB.05MagnesiocoulsoniteMgV2O4
4.BB.05MagnesiochromiteMgCr23+O4
4.BB.05MagnesioferriteMgFe23+O4
4.BB.05MagnetiteFe2+Fe23+O4
4.BB.05Nichromite(Ni,Co,Fe)(Cr,Fe,Al)2O4
4.BB.05QandiliteMg2(Ti,Fe3+,Al)O4
4.BB.05SpinelMgAl2O4
4.BB.05TrevoriteNiFe23+O4
4.BB.05UlvöspinelFe22+TiO4
4.BB.05VuorelaineniteMn2+V23+O4
4.BB.05ZincochromiteZnCr2O4
4.BB.10HausmanniteMn2+Mn23+O4
4.BB.10HetaeroliteZnMn23+O4
4.BB.10HydrohetaeroliteHZnMn3+5/3O4
4.BB.10IwakiiteMn2+Fe23+O4
4.BB.15MaghemiteFe2.67O4
4.BB.15TitanomaghemiteFe(Fe,Ti)2O4
4.BB.20TegengreniteMg2(Sb,Mn)O4
4.BB.25XieiteFeCr2O4
Related Minerals - Hey's Index Grouping:
7.19.1BixbyiteMn23+O3
7.19.2Janggunite(Mn4+,Mn2+,Fe3+)6O8(OH)6
7.19.3JacobsiteMn2+Fe23+O4
7.19.4Vernadite(Mn4+,Fe3+,Ca,Na)(O,OH)2 · nH2O
7.19.6Filipstadite(Mn2+,Mg)2(Sb5+,Fe3+)O4
7.19.7ManganochromiteMn2+Cr2O4
7.19.8ZenzénitePb3Fe43+Mn34+O15

Other Names for Galaxite

Synonyms:

Manganspinel

Name in Other Languages:
German:Galaxit
Spanish:Galaxita

Other Information

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

Galaxite in petrology

Common component of (items highlighted in red)

References for Galaxite

Reference List:
Krenner (1907), Zs. Kr.: 43: 471.

Ross and Kerr (1932), American Mineralogist (1932): 17: 1-8, 15.

Essene, E.J. and Peacor, D.R. (1983) Crystal chemistry and petrology of coexisting galaxite and jacobsite and other spinel solutions and solvi. American Mineralogist: 68: 449-455.

Palache, Charles, Harry Berman & Clifford Frondel (1944), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana Yale University 1837-1892, Seventh edition, Volume I: 689-697.

European Journal of Mineralogy: 9: 31-42.

Internet Links for Galaxite

mindat.org URL:
https://www.mindat.org/min-1639.html
Please feel free to link to this page.
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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Handbook of Mineralogy page PDF
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    • Localities for Galaxite

    This 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.
    (TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? 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.
    Germany
     
    • Bavaria
      • Franconia
        • Maroldsweisach
    		Wittern: "Mineralfundorte in Deutschland", 2001
    Ghana
     
    • Western Region
      • Tarkwa
    		Mineralium Deposita Volume 34 Issue 3 (1999) pp 297-311
    Japan
     
    • Hokkaido
      • Oshima peninsula
        • Kumaishi
    		Kobayashi H (1977) Kanoite, (Mn2+,Mg)2[Si2O6], a new clinopyroxene in the metamorphic rock from Tatehira, Oshima Peninsula, Hokkaido, Japan. Journal of the Geological Society of Japan 83, 537-542
    • Honshu Island
      • Chubu Region
        • Aichi Prefecture
          • Kita-Shidara-gun
            • Shidara-cho
    		Mayumi Yoshinaga (1963) Memoirs of the Faculty of Science, Kyushu University, Series D, Geology, 14, 1, 1-22.; Fukuoka, M. (1981) Memoirs of the Faculty of Science, Kyushu University, Series D, Geology, 24, #4, 207-252.
        • Fukui Prefecture
          • Mikata-kaminaka-gun
            • Wakasa-cho
    		Kato, A. (2010) Mumeikai Group meeting, No. 30.; 加藤昭, & 松原聰. (1980). 本邦産マンガン硼酸塩鉱物. 鉱物学雜誌, 14(Special3), 86-97.
        • Gifu Prefecture
    		Donald E. Lee (1955)
      • Chugoku Region
        • Yamaguchi Prefecture
          • Iwakuni City
    		Lee, D. E. (1955)
          • Kudamatsu City
    		Fukuoka, M. (1981) Memoirs of the Faculty of Science, Kyushu University, Series D, Geology, 24, #4, 207-252.; Fumitoshi HIROWATARI (1961) Minerals and Their Paragenetic Relations of the Manganese Deposits of Fukumaki Mine, Yamaguchi Prefecture. Bulletin of the Geological Survey of Japan Vol.12:565-572
          • Kuga-gun
    		H. Momoi (1964) Memoirs of the Faculty of Science, Kyushu University, Series D, Geology, 15, #1, 61.
    Mayumi Yoshinaga (1963) Memoirs of the Faculty of Science, Kyushu University, Series D, Geology, 14, 1, 1-22.
    Fukuoka, M. (1981) Memoirs of the Faculty of Science, Kyushu University, Series D, Geology, 24, #4, 207-252.
      • Kanto Region
        • Gunma Prefecture
          • Kiryuu City
    		加藤昭, & 松原聰. (1980). 本邦産マンガン硼酸塩鉱物. 鉱物学雜誌, 14(Special3), 86-97.
          • Midori City
            • Seta
    		Fukuoka, M. (1981) Memoirs of the Faculty of Science, Kyushu University, Series D, Geology, 24, #4, 207-252.
    Fukuoka, M. (1981) Memoirs of the Faculty of Science, Kyushu University, Series D, Geology, 24, #4, 207-252.; 加藤昭, & 松原聰. (1980). 本邦産マンガン硼酸塩鉱物. 鉱物学雜誌, 14(Special3), 86-97.
        • Tochigi Prefecture
    		加藤昭, & 松原聰. (1980). 本邦産マンガン硼酸塩鉱物. 鉱物学雜誌, 14(Special3), 86-97.
          • Kanuma City
    		Akira Kato (undated manuscript): Country rock and Minerals of the Kaso mine, Kanuma City, Tochigi Prefecture. (in japanese); Yoshinaga, Mayumi. "Sonolite, a new manganese silicate mineral." Mem Fac Sci Kyushu Univ Ser D Geol 14 (1963): 1-21.; 加藤昭, & 松原聰. (1980). 本邦産マンガン硼酸塩鉱物. 鉱物学雜誌, 14(Special3), 86-97.
    Fukuoka, M. (1981) Memoirs of the Faculty of Science, Kyushu University, Series D, Geology, 24, #4, 207-252.
    H. Yoshimura (1952)
      • Kinki Region
        • Kyoto Prefecture
          • Sohraku-gun
            • Wazuka-cho
    		Ohe Rikosha specimens (with sonolite)
        • Shiga Prefecture
          • Ritto City
    		Katsu Kaneko (1956) Symposium del Manganeso, XX Congreso Geologico Internacional, Mexico D.F.; Yoshinaga, Mayumi. "Sonolite, a new manganese silicate mineral." Mem Fac Sci Kyushu Univ Ser D Geol 14 (1963): 1-21.
      • Tohoku Region
        • Iwate Prefecture
          • Kuji City
            • Yamagata
    		Fukuoka, M. (1981) Memoirs of the Faculty of Science, Kyushu University, Series D, Geology, 24, #4, 207-252.
          • Kunohe-gun
            • Noda-mura
    		Katsu Kaneko (1956) Symposium del Manganeso, XX Congreso Geologico Internacional, Mexico D.F.
          • Shimohei-gun
            • Yamada-machi
    		Dr. Matsuo Nambu ore collection (curated at Geological Survey of Japan)
    • Kyushu Region
      • Miyazaki Prefecture
        • Hinokage-cho
    		Fukuoka, M. (1981) Memoirs of the Faculty of Science, Kyushu University, Series D, Geology, 24, #4, 207-252.
    Namibia
     
    • Otjozondjupa Region
      • Grootfontein District
        • Kombat
    		Dunn, P.J. (1991), Rare minerals of the Kombat Mine, Mineralogical Record: 22(6): 421-425.
    Romania
     
    • Suceava Co.
      • Suceava district
        • Iacobeni (Jakobeny; Jacobeny; Jakabfalva)
    		http://minerals-of-the-carpathians.eu
    Russia
     
    World of Stones #10.
      • Middle Urals
        • Sverdlovskaya Oblast'
          • Ekaterinburg (Sverdlovsk)
            • Sedel'nikovo
    		Brusnitsyn A.I. (2000) Rhodonite deposits of Middle Ural, - S.-Peterburg Univercity press, p. 200 (in Rus.).
    Sweden
     
    • Värmland
      • Filipstad
    		Kjell Gatedal
        • Nordmark district
          • Jakobsberg ore field
    		Kjell Gatedal
        • Nordmark Odal Field (Nordmarksberg)
    		Mineralogical Magazine(1978) 42, 133-136
    Knut Edvard Larsen collection
    Switzerland
     
    • Grischun (Grisons; Graubünden)
      • Engadin
        • Piz Corvatsch
    		Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 175-176.
      • Hinterrhein Valley
        • Rheinwald
          • Splügen
    		Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 176.
    • Wallis (Valais)
      • Turtmann Valley
        • Pipjitälli
    		The Canadian Mineralogist Vol. 44, pp. 000 (2006) page 205; Ansermet, S. (2012): Mines et minéraux du Valais - II. Anniviers et Tourtemagne. With contributions by N. Meisser, Ed. Porte-plumes (Ayer)
      • Zermatt - Saas Fee area
        • Matt Valley
          • Täsch Valley
    		Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Verlag Wepf & Co. (Basel), p. 30-31
    Thailand
     
    • Kanchanaburi Province
      • Bo Phloi District
        • Bo Phloi
    		RRUFF Specimen ID: R120116
    United Arab Emirates
     
    • Fujayrah Emirate (Fujairah)
      • Semail Ophiolite
    		Gnos, E. and Peters, T. (1995) Tephroite-hausmannite-galaxite from a granulite-facies manganese rock of the United Arab Emirates. Contributions to Mineralogy and Petrology: 120: 372-377.
    USA
     
    • Connecticut
      • Middlesex Co.
        • Haddam
    		Schooner, Richard. (circa 1980s), Untitled manuscript on central Connecticut minerals.
    • North Carolina
      • Alleghany Co.
        • Sparta
          • Bald Knob
    		Rocks & Min.: 60:130-135.
      • Clay Co.
    		Forsyth Gem and Mineral Club
    • Virginia
      • Carroll Co.
        • Southern Section-Blue Ridge Province
          • Gossan Lead District
    		Minerals of Virginia 1990 by R. V. Dietrich
      • Pittsylvania Co.
        • James River-Roanoke River Mn-Fe-Ba District
    		AmMin 87:690-698 (2002)
    Minerals of Virginia, 1990 by R. V. Dietrich
    Mineral and/or Locality  
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