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Hulsite

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Formula:
(Fe2+,Mg)2(Fe3+,Sn)(BO3)O2
System:
Monoclinic
Colour:
Black
Hardness:
3
Name:
After Alfred Hulse Brooks, American, of the U.S. Geological Survey.
The Fe2+ analogue of Magnesiohulsite.

Classification of Hulsite

Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
6.AB.45

6 : BORATES
A : Monoborates
B : BO3, with additional anions; 1(D) + OH, etc.
24.2.3.1

24 : ANHYDROUS BORATES
2 : A2BO2[XO3]
9.6.4

9 : Borates
6 : Borates of Ti, Sn and Ta
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First Recorded Occurrence of Hulsite

Year of Discovery:
1908
Geological Setting of First Recorded Material:
Contact metamorphosed limestone.
Associated Minerals at First Recorded Locality:

Physical Properties of Hulsite

Vitreous, Sub-Metallic
Colour:
Black
Hardness (Mohs):
3
Cleavage:
Distinct/Good
On {110}
Density:
4.28 g/cm3 (Measured)    

Crystallography of Hulsite

Crystal System:
Monoclinic
Cell Parameters:
a = 10.68Å, b = 3.09Å, c = 5.43Å
β = 94.15°
Ratio:
a:b:c = 3.456 : 1 : 1.757
Unit Cell Volume:
V 178.73 ų (Calculated from Unit Cell)
Morphology:
Small, rectangular crystals. Faces uneven and dull. Tabular masses.
Twinning:
On [001]. One member of the twinning rotated 120° relative to the other.

Chemical Properties of Hulsite

Formula:
(Fe2+,Mg)2(Fe3+,Sn)(BO3)O2
Essential elements:
All elements listed in formula:

Relationship of Hulsite to other Species

Other Members of Group:
Aluminomagnesiohulsite(Mg,Fe2+)2(Al,Mg,Sn)(BO3)O2
Magnesiohulsite(Mg,Fe2+)2(Fe3+,Sn,Mg)(BO3)O2
Pinakiolite(Mg,Mn2+)2Mn3+(BO3)O2
6.AB.05HambergiteBe2(BO3)(OH)
6.AB.10BerboriteBe2(BO3)(OH,F) · H2O
6.AB.15JeremejeviteAl6(BO3)5(F,OH)3
6.AB.20Warwickite(Mg,Fe2+)3Ti(BO3)2O2
6.AB.20YuanfuliiteMg(Fe3+,Fe2+,Al,Ti,Mg)(BO3)O
6.AB.25KarliteMg7(BO3)3(OH,Cl)5
6.AB.30Azoproite(Mg,Fe2+)2(Fe3+,Ti,Mg)(BO3)O2
6.AB.30BonaccorditeNi2Fe3+(BO3)O2
6.AB.30FredrikssoniteMg2(Mn3+,Fe3+)(BO3)O2
6.AB.30LudwigiteMg2Fe3+(BO3)O2
6.AB.30VonseniteFe22+Fe3+(BO3)O2
6.AB.35Pinakiolite(Mg,Mn2+)2Mn3+(BO3)O2
6.AB.40Blatterite(Mn2+,Mg)2(Mn3+,Sb3+,Fe3+)(BO3)O2
6.AB.40ChestermaniteMg2(Fe3+,Mn3+,Al,Sb3+)(BO3)O2
6.AB.40Orthopinakiolite(Mg,Mn2+)2Mn3+(BO3)O2
6.AB.40Takéuchiite(Mg,Mn2+)2(Mn3+,Fe3+)(BO3)O2
6.AB.45Magnesiohulsite(Mg,Fe2+)2(Fe3+,Sn,Mg)(BO3)O2
6.AB.45Aluminomagnesiohulsite(Mg,Fe2+)2(Al,Mg,Sn)(BO3)O2
6.AB.50FluoboriteMg3(BO3)(F,OH)3
6.AB.50HydroxylboriteMg3(BO3)(OH)3
6.AB.55ShabyniteMg5(BO3)(OH)5(Cl,OH)2 · 4H2O
6.AB.55WightmaniteMg5(BO3)O(OH)5 · 2H2O
6.AB.60GaudefroyiteCa4Mn3+2-3(BO3)3(CO3)(O,OH)3
6.AB.65SakhaiteCa12Mg4(BO3)7(CO3)4(OH)2Cl
6.AB.70HarkeriteCa12Mg4Al(BO3)3(SiO4)4(CO3)5 · H2O
6.AB.75Pertsevite-(F)Mg2(BO3)(F,OH)
6.AB.75Pertsevite-(OH)Mg2(BO3)(OH)
6.AB.80JacquesdietrichiteCu2(H2BO3)(OH)3
6.AB.85PainiteCaZrAl9(BO3)O15
9.6.1Warwickite(Mg,Fe2+)3Ti(BO3)2O2
9.6.2Azoproite(Mg,Fe2+)2(Fe3+,Ti,Mg)(BO3)O2
9.6.3NordenskiöldineCaSn4+[BO3]2
9.6.5Magnesiohulsite(Mg,Fe2+)2(Fe3+,Sn,Mg)(BO3)O2
9.6.6Behierite(Ta5+,Nb5+)(BO4)

Other Names for Hulsite

Name in Other Languages:
German:Hulsit
Russian:Халсит
Simplified Chinese:黑硼锡铁矿
Spanish:Hulsita

Other Information

Other Information:
Readily soluble in HCl and HF but less reactive in other acids.

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

References for Hulsite

Reference List:
Knopf and Schaller (1908) American Journal of Science: 25: 323.

Schaller (1910) American Journal of Science: 29: 543.

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: 326.

Vlisidid, A.C. and Schaller, W.T. (1974) The identity of paigeite with vonsenite, and chemical analysis of vonsenite, ludwigite and hulsite. Neues Jahrbuch für Mineralogie, Monatshefte 1974(3-4): 95-105.

American Mineralogist (1976): 61: 116-122.

Grew, E.S., and Anovitz, L.M. (1996) BORON: Mineralogy, Petrology and Geochemistry, second edition, as revised (2002).

Šrein, V., Hloušek, J.: Ludwigit a hulsit z Krušných hor. Bulletin mineralogicko-petrografického oddělení Národního muzea v Praze, 1998, roč. 6, s. 243-246.

Internet Links for Hulsite

Localities for Hulsite

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.
Australia
 
  • Tasmania
    • Rosebery district
R Bottrill, unpublished research
    • Zeehan district
      • Mt Heemskirk mineral field
Bottrill & Baker (in prep) Catalogue of minerals of Tasmania
      • Zeehan mineral field
Bottrill & Baker (in prep) Catalogue of minerals of Tasmania
China
 
  • Guangdong Province
    • Heyuan Prefecture
      • Lianping Co.
Jianxiong Zhou and Jinyan Lu (1981): Acta Mineralogica Sinica 1(4), 193-199; Lianshun Feng (1986): Geology and Prospecting 22(3), 21-27
  • Hunan Province
    • Chenzhou Prefecture
      • Linwu Co.
        • Xianghualing Sn-polymetallic ore field
Dequan Zhang and Lihua Wang (1988): Mineral Deposits 7(4), 33-42
    • Hengyang Prefecture
      • Changning Co.
        • Dayishan Sn-polymetallic ore field
Aleksandrov, S.M. (1998): Geochemistry of skarn and ore formation in dolomites. VSP (Utrecht, Tokyo), 300 pp.
  • Sichuan Province
    • Liangshan Autonomous Prefecture
      • Xichang Co.
Shihui Yang and Guangxue Fu (1983), In: Collected Papers of the Chengdu Institute of Geology and Mineral Resources, Geological Society of China Publications, Vol. 4
Czech Republic
 
  • Bohemia (Böhmen; Boehmen)
    • Karlovy Vary Region
      • Krušné Hory Mts (Erzgebirge)
        • Jáchymov District (St Joachimsthal)
Šrein, V., Hloušek, J.: Ludwigit a hulsit z Krušných hor. Bulletin mineralogicko-petrografického oddělení Národního muzea v Praze, 1998, roč. 6, s. 243-246.
Russia
 
  • Eastern-Siberian Region
    • Sakha Republic (Saha Republic; Yakutia)
      • Polar Yakutia
        • Dogdo River Basin
          • Tas-Khayakhtakh Range
http://maurice.strahlen.org/yakutia/yakutia.htm; Seltmann, R., Soloviev, S., Shatov, V., Pirajno, F., Naumov, E., & Cherkasov, S. (2010). Metallogeny of Siberia: tectonic, geologic and metallogenic settings of selected significant deposits*. Australian Journal of Earth Sciences, 57(6), 655-706
  • Northern Region
    • Karelia Republic
      • Ladoga Region
Ivashchenko, V. I., Valkama, M., Sundblad, K., Golubev, A. I., & Alekseev, V. Y. (2011, September). New data on mineralogy and metallogeny of scarns in the Pitkyaranta ore region. In Doklady Earth Sciences (Vol. 440, No. 1, pp. 1307-1311). SP MAIK Nauka/Interperiodica; Aleksandrov, S. M., & Troneva, M. A. (2009). Composition and genesis of endogenous borates from the Pitkáranta ore field, Karelia. Geochemistry International, 47(9), 914-929.
USA
 
  • Alaska
    • Nome Borough
      • Seward Peninsula
American Journal of Science: 25: 323-331; 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: 326.
Mineral and/or Locality  
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