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Galaxite

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Formula:
Mn2+Al2O4
Colour:
Red, brown
Lustre:
Vitreous
Hardness:
Specific Gravity:
4.03 (Calculated)
Crystal System:
Isometric
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.


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Classification of GalaxiteHide

Approved, 'Grandfathered' (first described prior to 1959)
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
7.2.1.2

7 : MULTIPLE OXIDES
2 : AB2X4
7.19.5

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

Pronounciation of GalaxiteHide

Pronounciation:
PlayRecorded byCountry
Jolyon & Katya RalphUnited Kingdom

Physical Properties of GalaxiteHide

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

Optical Data of GalaxiteHide

Type:
Isotropic

Chemical Properties of GalaxiteHide

Formula:
Mn2+Al2O4

Crystallography of GalaxiteHide

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

Type Occurrence of GalaxiteHide

Synonyms of GalaxiteHide

Other Language Names for GalaxiteHide

German:Galaxit
Spanish:Galaxita

Relationship of Galaxite to other SpeciesHide

Member of:
Other Members of this group:
ChromiteFe2+Cr3+2O4Iso. m3m (4/m 3 2/m) : Fd3m
Cochromite(Co,Ni,Fe)(Cr,Al)2O4
CoulsoniteFe2+V3+2O4
CuprospinelCu2+Fe3+2O4Iso.
Filipstadite(Sb0.5Fe0.5)Mn2O4Iso.
FrankliniteZn2+Fe3+2O4Iso. m3m (4/m 3 2/m) : Fd3m
GahniteZnAl2O4Iso. m3m (4/m 3 2/m) : Fd3m
HercyniteFe2+Al2O4Iso. m3m (4/m 3 2/m) : Fd3m
JacobsiteMn2+Fe3+2O4Iso. m3m (4/m 3 2/m) : Fd3m
MagnesiochromiteMgCr2O4Iso. m3m (4/m 3 2/m) : Fd3m
MagnesiocoulsoniteMgV2O4Iso.
MagnesioferriteMgFe3+2O4Iso. m3m (4/m 3 2/m) : Fd3m
MagnetiteFe2+Fe3+2O4Iso. m3m (4/m 3 2/m) : Fd3m
ManganochromiteMn2+Cr2O4
Nichromite(Ni,Co,Fe)(Cr,Fe,Al)2O4Iso. m3m (4/m 3 2/m) : Fd3m
Qandilite(Mg,Fe3+)2(Ti,Fe3+,Al)O4
SpinelMgAl2O4Iso. m3m (4/m 3 2/m) : Fd3m
TrevoriteNi2+Fe3+2O4Iso. m3m (4/m 3 2/m) : Fd3m
UlvöspinelFe2TiO4Iso.
VuorelaineniteMn2+V3+2O4
XieiteFe2+Cr2O4Orth. mmm (2/m 2/m 2/m)
ZincochromiteZnCr2O4Iso.

Common AssociatesHide

Associated Minerals Based on Photo Data:
Jacobsite4 photos of Galaxite associated with Jacobsite on mindat.org.
Wiserite4 photos of Galaxite associated with Wiserite on mindat.org.
Kutnohorite1 photo of Galaxite associated with Kutnohorite on mindat.org.
Manganocummingtonite1 photo of Galaxite associated with Manganocummingtonite on mindat.org.
Pyrochroite1 photo of Galaxite associated with Pyrochroite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

4.BB.05ChromiteFe2+Cr3+2O4Iso. m3m (4/m 3 2/m) : Fd3m
4.BB.05Cochromite(Co,Ni,Fe)(Cr,Al)2O4
4.BB.05CoulsoniteFe2+V3+2O4
4.BB.05CuprospinelCu2+Fe3+2O4Iso.
4.BB.05Filipstadite(Sb0.5Fe0.5)Mn2O4Iso.
4.BB.05FrankliniteZn2+Fe3+2O4Iso. m3m (4/m 3 2/m) : Fd3m
4.BB.05GahniteZnAl2O4Iso. m3m (4/m 3 2/m) : Fd3m
4.BB.05HercyniteFe2+Al2O4Iso. m3m (4/m 3 2/m) : Fd3m
4.BB.05JacobsiteMn2+Fe3+2O4Iso. m3m (4/m 3 2/m) : Fd3m
4.BB.05ManganochromiteMn2+Cr2O4
4.BB.05MagnesiocoulsoniteMgV2O4Iso.
4.BB.05MagnesiochromiteMgCr2O4Iso. m3m (4/m 3 2/m) : Fd3m
4.BB.05MagnesioferriteMgFe3+2O4Iso. m3m (4/m 3 2/m) : Fd3m
4.BB.05MagnetiteFe2+Fe3+2O4Iso. m3m (4/m 3 2/m) : Fd3m
4.BB.05Nichromite(Ni,Co,Fe)(Cr,Fe,Al)2O4Iso. m3m (4/m 3 2/m) : Fd3m
4.BB.05Qandilite(Mg,Fe3+)2(Ti,Fe3+,Al)O4
4.BB.05SpinelMgAl2O4Iso. m3m (4/m 3 2/m) : Fd3m
4.BB.05TrevoriteNi2+Fe3+2O4Iso. m3m (4/m 3 2/m) : Fd3m
4.BB.05UlvöspinelFe2TiO4Iso.
4.BB.05VuorelaineniteMn2+V3+2O4
4.BB.05ZincochromiteZnCr2O4Iso.
4.BB.10HausmanniteMn2+Mn3+2O4Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
4.BB.10HetaeroliteZnMn2O4Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
4.BB.10HydrohetaeroliteZnMn2O4 · H2OTet. 4/mmm (4/m 2/m 2/m) : I41/amd
4.BB.10IwakiiteMn2+Fe3+2O4Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
4.BB.15MaghemiteFe3+2O3Iso. 4 3 2 : P41 3 2
4.BB.15TitanomaghemiteFe3+(Fe3+,Ti4+,Fe2+,◻)2O4Iso. 4 3 2 : P43 3 2
4.BB.20Tegengrenite(Mg,Mn2+)2Sb5+0.5(Mn3+,Si,Ti)0.5O4Trig.
4.BB.25XieiteFe2+Cr2O4Orth. mmm (2/m 2/m 2/m)

Related Minerals - Dana Grouping (8th Ed.)Hide

7.2.1.1SpinelMgAl2O4Iso. m3m (4/m 3 2/m) : Fd3m
7.2.1.3HercyniteFe2+Al2O4Iso. m3m (4/m 3 2/m) : Fd3m
7.2.1.4GahniteZnAl2O4Iso. m3m (4/m 3 2/m) : Fd3m

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

7.19.1BixbyiteMn3+2O3Iso. m3 (2/m 3) : Ia3
7.19.2JangguniteMn5-x(Mn,Fe)1+xO8(OH)6Orth.
7.19.3JacobsiteMn2+Fe3+2O4Iso. m3m (4/m 3 2/m) : Fd3m
7.19.4Vernadite(Mn4+,Fe3+,Ca,Na)(O,OH)2 · nH2OHex.
7.19.6Filipstadite(Sb0.5Fe0.5)Mn2O4Iso.
7.19.7ManganochromiteMn2+Cr2O4
7.19.8ZenzénitePb3Fe4Mn3O15Hex.

Other InformationHide

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 petrologyHide

Common component of (items highlighted in red)

References for GalaxiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
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 GalaxiteHide

Localities for GalaxiteHide

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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
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
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