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Sussexite

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Formula:
Mn
2+
 
BO
 
2
(OH)
System:OrthorhombicColour:White, lilac / lavender, ...
Hardness:3
Name:
Named in 1868 by George Jarvis Brush after the type localities, which are both located in Sussex County, New Jersey, USA (location of the Franklin and Sterling Hill orebodies).


Szaibelyite Group. Sussexite-Szaibelyite Series. The manganese analogue of Szaibelyite.

Visit gemdat.org for gemological information about Sussexite. Currently in public beta-test.

Classification of Sussexite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:5/H.02-20
Nickel-Strunz 10th (pending) edition ID:6.BA.15

6 : BORATES
B : Diborates
A : Neso-diborates with double triangles B2(O,OH)5; 2(2D); 2(2D) + OH, etc.
Dana 8th edition ID:25.2.1.1

25 : ANHYDROUS BORATES CONTAINING HYDROXYL OR HALOGEN
2 : Diborates
Hey's CIM Ref.:9.7.4

9 : Borates
7 : Borates of Mn
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Type Occurrence of Sussexite

Co-type Localities:Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Hamburg Mine (Hamburg Road Mine), Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Trotter Mine (Lehigh Mine), Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Year of Discovery:1868
Geological Setting of type material:Hydrothermal veinlets traversing Precambrian metamorphosed Zn-Mn-Fe orebody (Franklin, NJ)
Associated Minerals at type locality:
WillemiteRhodochrositePyrochroiteLeucophoenicite

Physical Properties of Sussexite

Lustre:Silky, Dull, Earthy
Diaphaneity (Transparency):Transparent, Translucent
Colour:White, lilac / lavender, black, golden-brown; colourless in transmitted light
Streak:White
Hardness (Mohs):3
Fracture:Sub-Conchoidal, Fibrous
Density (measured):3.3 g/cm3

Crystallography of Sussexite

Crystal System:Orthorhombic
Cell Parameters:a = 10.7Å, b = 12.77Å, c = 3.25Å
Ratio:a:b:c = 0.838 : 1 : 0.255
Unit Cell Volume:V 444.08 ų (Calculated from Unit Cell)
Morphology:Veinlets and masses with a felted or matted fibrous structure; also parallel-fibrous or transverse-fibrous veinlets. Chert-like masses. Microscopically observed as minute laths or flattened fibers.

Optical Data of Sussexite

Type:Biaxial (-)
RI values: nα = 1.670 nβ = 1.728 nγ = 1.732
Maximum Birefringence:δ = 0.062

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:High
Dispersion:r > v strong

Chemical Properties of Sussexite

Formula:
Mn
2+
 
BO
 
2
(OH)
Simplified for copy/paste:Mn2+BO2(OH)
Essential elements:B, H, Mn, O
All elements listed in formula:B, H, Mn, O
Common Impurities:Mg

Relationship of Sussexite to other Species

Series:Forms a series with Szaibélyite (see here)
Related Minerals - Nickel-Strunz Grouping):

- +
6.BA.05Suanite
Mg
 
2
[B
 
2
O
 
5
]
6.BA.10Clinokurchatovite
Ca(Mg,Fe
2+
 
,Mn
2+
 
)[B
 
2
O
 
5
]
6.BA.10Kurchatovite
Ca(Mg,Mn
2+
 
)[B
 
2
O
 
5
]
6.BA.15Szaibélyite
MgBO
 
2
(OH)
6.BA.20Wiserite
(Mn,Mg)
 
14
[Cl|(OH)
 
8
|(Si,Mg)(O,OH)
 
4
|(B
 
2
O
 
5
)
 
4
]
Related Minerals - Hey's Index Grouping:

- +
9.7.1Pinakiolite
(Mg,Mn
2+
 
)
 
2
Mn
3+
 
(BO
 
3
)O
 
2
9.7.2Orthopinakiolite
(Mg,Mn
2+
 
)
 
2
Mn
3+
 
(BO
 
3
)O
 
2
9.7.3Jimboite
(Mn
2+
 
,Mg)
 
3
[BO
 
3
]
 
2
9.7.5Wiserite
(Mn,Mg)
 
14
[Cl|(OH)
 
8
|(Si,Mg)(O,OH)
 
4
|(B
 
2
O
 
5
)
 
4
]
9.7.6Kurchatovite
Ca(Mg,Mn
2+
 
)[B
 
2
O
 
5
]
9.7.7Clinokurchatovite
Ca(Mg,Fe
2+
 
,Mn
2+
 
)[B
 
2
O
 
5
]
9.7.8Takéuchiite
(Mg,Mn
2+
 
)
 
2
(Mn
3+
 
,Fe
3+
 
)(BO
 
3
)O
 
2
9.7.9Blatterite
(Mn
2+
 
,Mg)
 
2
(Mn
3+
 
,Sb
3+
 
,Fe
3+
 
)(BO
 
3
)O
 
2
9.7.10Tusionite
Mn
2+
 
Sn
4+
 
[BO
 
3
]
 
2

Other Names for Sussexite

Other Languages:
German:Sussexit
Russian:Суссексит
Spanish:Sussexita

Other Information

Fluorescence in UV light:None.
Other Information:Slowly soluble in acids.
Special Storage/
Display Requirements from:
Sterling Mine,..., Sussex Co., New Jersey, USANone.
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 Sussexite

Reference List:

- +
Brush (1868) American Journal of Science, 2nd. series: 46, 140 and 240-243.

Penfield and Sperry (1888) American Journal of Science: 36: 323.

Poitevin and Ellsworth (1924) American Mineralogist: 9: 188.

Palache, C. (1928) American MIneralogist: 13: 323 (Bauer analysis).

Slawson (1934) American Mineralogist: 19: 575.

Schaller (1942) American Mineralogist: 27: 467.

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: 375-377.

Schweizerische mineralogische und petrographische Mitteilungen: 75 (1995): 123-133.

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

Internet Links for Sussexite

Search Engines:
  • Look for Sussexite on Google
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  • External Links:
  • Look for Sussexite on Webmineral
  • Look for Sussexite on Athena Mineralogy
  • Look for Sussexite on Wikipedia
  • Look for Sussexite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Sussexite details from Handbook of Mineralogy (PDF)
  • Mineral Dealers:
  • The Arkenstone - Fine Minerals
  • Buy from Dave Bunk Minerals
  • DAKOTA MATRIX offers Cabinet and Rare Species from Worldwide Localities.
  • SpiriferMinerals.com - high quality low prices
  • Find Sussexite on www.crystalclassics.co.uk
  • Mineral Classics - Worldwide Collector Quality Minerals and Gems
  • Buy minerals from YourMineralCollection
  • Lapis Mineral Magazin
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  • Rare and Unusual minerals at Mineralogical Research Company
  • Fine and rare minerals from mintreasure.com
  • rare and unusual minerals mainly crystallized
  • Specimens:The following Sussexite specimens are currently listed for sale on minfind.com.

    Localities for Sussexite

    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
     
    • South Australia
      • Eyre Peninsula
        • Middleback Range
          • Iron Knob
    Pring, A., Francis, G. & Birch, W. D. (1992): Nissonite, namibite, and other additions to the mineral suite from Iron Monarch, South Australia. Australian Mineral. 6, 31-39.
    Austria
     
    • Styria
      • Mitterdorf
        • Veitsch
          • Kleinveitsch
            • Kaiblinggraben
    Postl, W. et al. (2000)
    France
     
    • Midi-Pyrénées
      • Hautes-Pyrénées
    Le Règne Minéral 47: 5-21
          • Vielle Aure
    DE ASCENCAO GUEDES R., TIXADOR Y., CASTERET A. & GOUJOU JC. (2002) La mine de Coustou, Vielle-Aure, Hautes-Pyrénées. Le Règne Minéral, 47, 23-31. (in french)
    Italy
     
    • Liguria
      • Genova Province
        • Ne
          • Graveglia Valley
            • Reppia
    Rivista Mineralogica Italiana, (4), 131
    Japan
     
    • Honshu Island
      • Chubu Region
        • Fukui Prefecture
          • Mikata-kaminaka-gun
            • Wakasa-cho
    Anovitz, L.M. and Grew, E.S. (2002) Mineralogy, petrology and geochemistry of boron: an introduction, p 23 (in Reviews in Mineralogy, vol 33, Mineralogical Society of America).
      • Kanto Region
        • Tochigi Prefecture
    Fukuoka, M. (1981) Memoirs of the Faculty of Science, Kyushu University, Series D, Geology, 24, #4, 207-252.
          • Kanuma City
    Akira Kato (undated manuscript): Country rock and Minerals of the Kaso mine, Kanuma City, Tochigi Prefecture. (in japanese)
      • Kinki region
        • Mie Prefecture
          • Watarai town
    Masutomi Museum specimen (Kyoto)
      • Tohoku Region
        • Iwate Prefecture
          • Noda
    Dr. Matsuo Nambu collection (curated at Geological Survey of Japan)
    Namibia
     
    • Otjozondjupa Region
      • Grootfontein District
        • Kombat
    Dunn, P.J. (1991), Rare minerals of the Kombat Mine, Mineralogical Record: 22(6): 421-425.
    North Korea
     
    • North Hwanghae Province
      • Suan-gun
    Dana 7:II::323,370,376.
    South Africa
     
    • Northern Cape Province
      • Kalahari manganese field
        • Hotazel
    Von Bezing, K. L. et al. (1991) The Kalahari manganese field: An Update, Mineralogical Record 22(4) pp 293; Cairncross, B. and Dixon, R., (1995) Minerals of South Africa. The Geological Society of South Africa: pp 246.
        • Kuruman
          • N'Chwaning Mines
    Minerals of South Africa
    Switzerland
     
    • St Gallen
      • Alvier Group
        • Sargans
    Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Verlag Wepf & Co. (Basel), p. 430
    USA
     
    • Michigan
      • Iron Co.
        • Menominee iron range
    Palache et al (1951), Dana's System of Mineralogy, seventh ed., vol. II: 376, 389; Rocks & Minerals: 58: 111 & 62: 166.
          • Stambaugh
    Rocks & Min.:58:109.
    • New Jersey
      • Sussex Co.
        • Franklin Mining District
          • Franklin
    Palache(1935):127; 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: 376; Dunn, P.J. (1995): Part 5: 642.
    Palache(1930):127.
    Palache(1935):127.
    Palache(1935):127.
          • Ogdensburg
            • Sterling Hill
    Frondel, C. & Ito, J.: Am.Min.:50:502-503 (1965); Dunn(1995):Pt5:642.
    • Utah
      • Salt Lake Co.
        • Wasatch Mts
          • Big Cottonwood District
    UGMS Bull 117 Minerals and Mineral Localities of Utah
    UGMS Bull 117 Minerals and Mineral Localities of Utah
    • Virginia
      • Amelia Co.
        • Winterham
    Rocks & Minerals 79:4 p 256
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    Copyright © Jolyon Ralph and Ida Chau 1993-2014. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of thousands of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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