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Hulsite

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Formula:
(Fe
2+
 
,Mg)
 
2
(Fe
3+
 
,Sn)(BO
 
3
)O
 
2
System:MonoclinicColour:Black
Hardness:3
Member of:Pinakiolite Group
Name:After Alfred Hulse Brooks, American, of the U.S. Geological Survey.


The Fe2+ analogue of Magnesiohulsite.

Classification of Hulsite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:5/G.03-40
Nickel-Strunz 10th (pending) edition ID:6.AB.45

6 : BORATES
A : Monoborates
B : BO3, with additional anions; 1(D) + OH, etc.
Dana 8th edition ID:24.2.3.1

24 : ANHYDROUS BORATES
2 : A2BO2[XO3]
Hey's CIM Ref.:9.6.4

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

Type Locality:Brooks Mountain, Seward Peninsula, Nome Borough, Alaska, USA
Year of Discovery:1908
Geological Setting of type material:Contact metamorphosed limestone.
Associated Minerals at type locality:
VesuvianiteMagnetiteGarnet Structural GroupDiopside

Physical Properties of Hulsite

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

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:
(Fe
2+
 
,Mg)
 
2
(Fe
3+
 
,Sn)(BO
 
3
)O
 
2
Simplified for copy/paste:(Fe2+,Mg)2(Fe3+,Sn)(BO3)O2
Essential elements:B, Fe, O
All elements listed in formula:B, Fe, Mg, O, Sn

Relationship of Hulsite to other Species

Member of:Pinakiolite Group
Other Members of Group:

- +
Aluminomagnesiohulsite
(Mg,Fe
2+
 
)
 
2
(Al,Mg,Sn)(BO
 
3
)O
 
2
Magnesiohulsite
(Mg,Fe
2+
 
)
 
2
(Fe
3+
 
,Sn,Mg)(BO
 
3
)O
 
2
Pinakiolite
(Mg,Mn
2+
 
)
 
2
Mn
3+
 
(BO
 
3
)O
 
2
Related Minerals - Nickel-Strunz Grouping):

- +
6.AB.05Hambergite
Be
 
2
(BO
 
3
)(OH)
6.AB.10Berborite
Be
 
2
(BO
 
3
)(OH,F) · H
 
2
O
6.AB.15Jeremejevite
Al
 
6
(BO
 
3
)
 
5
(F,OH)
 
3
6.AB.20Warwickite
(Mg,Fe
2+
 
)
 
3
Ti(BO
 
3
)
 
2
O
 
2
6.AB.20Yuanfuliite
Mg(Fe
3+
 
,Fe
2+
 
,Al,Ti,Mg)(BO
 
3
)O
6.AB.25Karlite
Mg
 
7
(BO
 
3
)
 
3
(OH,Cl)
 
5
6.AB.30Azoproite
(Mg,Fe
2+
 
)
 
2
(Fe
3+
 
,Ti,Mg)(BO
 
3
)O
 
2
6.AB.30Bonaccordite
Ni
 
2
Fe
3+
 
(BO
 
3
)O
 
2
6.AB.30Fredrikssonite
Mg
 
2
(Mn
3+
 
,Fe
3+
 
)(BO
 
3
)O
 
2
6.AB.30Ludwigite
Mg
 
2
Fe
3+
 
(BO
 
3
)O
 
2
6.AB.30Vonsenite
Fe
2+
2
Fe
3+
 
(BO
 
3
)O
 
2
6.AB.35Pinakiolite
(Mg,Mn
2+
 
)
 
2
Mn
3+
 
(BO
 
3
)O
 
2
6.AB.40Blatterite
(Mn
2+
 
,Mg)
 
2
(Mn
3+
 
,Sb
3+
 
,Fe
3+
 
)(BO
 
3
)O
 
2
6.AB.40Chestermanite
Mg
 
2
(Fe
3+
 
,Mn
3+
 
,Al,Sb
3+
 
)(BO
 
3
)O
 
2
6.AB.40Orthopinakiolite
(Mg,Mn
2+
 
)
 
2
Mn
3+
 
(BO
 
3
)O
 
2
6.AB.40Takéuchiite
(Mg,Mn
2+
 
)
 
2
(Mn
3+
 
,Fe
3+
 
)(BO
 
3
)O
 
2
6.AB.45Magnesiohulsite
(Mg,Fe
2+
 
)
 
2
(Fe
3+
 
,Sn,Mg)(BO
 
3
)O
 
2
6.AB.45Aluminomagnesiohulsite
(Mg,Fe
2+
 
)
 
2
(Al,Mg,Sn)(BO
 
3
)O
 
2
6.AB.50Fluoborite
Mg
 
3
(BO
 
3
)(F,OH)
 
3
6.AB.50Hydroxylborite
Mg
 
3
(BO
 
3
)(OH)
 
3
6.AB.55Shabynite
Mg
 
5
(BO
 
3
)(OH)
 
5
(Cl,OH)
 
2
· 4H
 
2
O
6.AB.55Wightmanite
Mg
 
5
(BO
 
3
)O(OH)
 
5
· 2H
 
2
O
6.AB.60Gaudefroyite
Ca
 
4
Mn
3+
2-3
(BO
 
3
)
 
3
(CO
 
3
)(O,OH)
 
3
6.AB.65Sakhaite
Ca
 
12
Mg
 
4
(BO
 
3
)
 
7
(CO
 
3
)
 
4
(OH)
 
2
Cl
6.AB.70Harkerite
Ca
 
12
Mg
 
4
Al(BO
 
3
)
 
3
(SiO
 
4
)
 
4
(CO
 
3
)
 
5
· H
 
2
O
6.AB.75Pertsevite-(F)
Mg
 
2
(BO
 
3
)(F,OH)
6.AB.75Pertsevite-(OH)
Mg
 
2
(BO
 
3
)(OH)
6.AB.80Jacquesdietrichite
Cu
 
2
(H
 
2
BO
 
3
)(OH)
 
3
6.AB.85Painite
CaZrAl
 
9
(BO
 
3
)O
 
15
Related Minerals - Hey's Index Grouping:

- +
9.6.1Warwickite
(Mg,Fe
2+
 
)
 
3
Ti(BO
 
3
)
 
2
O
 
2
9.6.2Azoproite
(Mg,Fe
2+
 
)
 
2
(Fe
3+
 
,Ti,Mg)(BO
 
3
)O
 
2
9.6.3Nordenskiöldine
CaSn
4+
 
[BO
 
3
]
 
2
9.6.5Magnesiohulsite
(Mg,Fe
2+
 
)
 
2
(Fe
3+
 
,Sn,Mg)(BO
 
3
)O
 
2
9.6.6Behierite
(Ta
5+
 
,Nb
5+
 
)(BO
 
4
)

Other Names for Hulsite

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 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 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

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  • Raman and XRD data at RRUFF project
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  • Hulsite details from Handbook of Mineralogy (PDF)
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  • Localities for Hulsite

    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.
    (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
     
    • 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.
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