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Nobleite

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Corkscrew Canyon Mine (Corkscrew Mine), Corkscrew Canyon, Black Mts, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA
© Caltech

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Formula:
CaB
 
6
O
 
9
(OH)
 
2
 · 3H
 
2
O
System:MonoclinicLustre:Vitreous
Hardness:3
Name:Named in honor of Levi Fatzinger Noble (1882-1965), american geologist, for his contributions to the geology of the Death Valley region.
This page provides mineralogical data about Nobleite.

Classification of Nobleite

IMA status:Approved
Strunz 8th edition ID:5/K.06-10
Nickel-Strunz 10th (pending) edition ID:6.FC.05

6 : BORATES
F : Hexaborates
C : Phyllo-hexaborates
Dana 8th edition ID:26.6.6.1

26 : HYDRATED BORATES CONTAINING HYDROXYL OR HALOGEN
6 : Hexaborates
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Type Occurrence of Nobleite

Type Locality:Nobleite locality, De Bely Mine area, De Bely Mine (Debely Mine), Black Mts, Furnace Creek District (Furnace Creek Borate District), Death Valley National Park, Inyo Co., California, USA
Year of Discovery:1961

Physical Properties of Nobleite

Lustre:Vitreous
Hardness (Mohs):3

Crystallography of Nobleite

Crystal System:Monoclinic
Cell Parameters:a = 14.56Å, b = 8.01Å, c = 9.83Å
β = 111.75°
Ratio:a:b:c = 1.818 : 1 : 1.227
Unit Cell Volume:V 1,064.81 ų (Calculated from Unit Cell)

Optical Data of Nobleite

Type:Biaxial (+)
RI values: nα = 1.500 nβ = 1.520 nγ = 1.554
2V:Measured: 76° , Calculated: 78°
Maximum Birefringence:δ = 0.054

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Low
Dispersion:relatively weak

Chemical Properties of Nobleite

Formula:
CaB
 
6
O
 
9
(OH)
 
2
 · 3H
 
2
O
Essential elements:B, Ca, H, O
All elements listed in formula:B, Ca, H, O

Relationship of Nobleite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
6.FC.05Tunellite
SrB
 
6
O
 
9
(OH)
 
2
 · 3H
 
2
O
6.FC.10Strontioborite
SrB
 
8
O
 
11
(OH)
 
4
6.FC.15Ginorite
Ca
 
2
B
 
14
O
 
23
 · 8H
 
2
O
6.FC.15Strontioginorite
(Sr,Ca)
 
2
B
 
14
O
 
23
 · 8H
 
2
O
6.FC.20Fabianite
CaB
 
3
O
 
5
OH

Other Names for Nobleite

Synonyms:
Nobelite
Other Languages:
German:Nobleit
Russian:Ноблеит
Spanish:Nobleita

Other Information

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 Nobleite

Reference List:

- +
American Mineralogist (1961): 46: 560-571.

Canadian Mineralogist (1994): 32: 895-902.

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

Karanović, L., Rosić, A., Poleti, D. (2004): Crystal structure of nobleite, Ca[B6O9(OH)2]3H2O, from Jarandol (Serbia). European Journal of Mineralogy, 16, 824-832.

Best Localities for Nobleite

Best of Species:Nobleite

Internet Links for Nobleite

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    • Localities for Nobleite

    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.
    Hide Locality List
    (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.
    Argentina
     
    • Salta
      • Sijes
    		Rock Currier collection
    Chile
     
    • Antofagasta Region
    		MinMag 66:253
    USA
     
    • California
      • Inyo Co.
        • Death Valley National Park
          • Furnace Creek District (Furnace Creek Borate District)
            • Black Mts
              • Corkscrew Canyon
    		Erd, R.C., J.F. McAllister & A.C. Vlisidis (1961), Nobleite, another new hydrous calcium borate from the Death Valley region, California: American Mineralogist: 46: 560-571; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 280; Erd, R.C., J.F. McAllister, and A.C. Vlisidis (1970) Wardsmithite 5CaO • MgO • 12B2O3 • 30H2O, a new borate mineral from the Death Valley region, California. American Mineralogist: 55: 350; McAllister, James Franklin (1970) Geology of the Furnace Creek borate area, Death Valley, Inyo County, California. California Division of Mines and Geology Map Sheet 14, 9 pp.: 9; Konnert, J.A., Clark, J.R., and Christ, C.L. (1972) Gowerite, CaB5O8(OH) •B(OH)3•3H2O: crystal structure and comparison with related borates. American Mineralogist: 57: 381-396.
              • De Bely Mine (Debely Mine)
                • De Bely Mine area
    		Erd, R.C., J.F. McAllister & A.C. Vlisidis (1961), Nobleite, another new hydrous calcium borate from the Death Valley region, California: American Mineralogist: 46: 560-571.
              • Ryan
    		www.mineralsocal.org; American Mineralogist: 55: 349-357; American Mineralogist (1961): 46: 560-571.
    American Mineralogist (1961): 46: 560-571.
              • Twenty Mule Team Canyon
                • Monte Blanco
    		American Mineralogist (1979): 64(3-4): 369-375.; Erd, R.C., J.F. McAllister, and G.D. Eberlein (1979) New data on hungchaoite, the second world occurrence, Death Valley region, California. American Mineralogist: 64: 369-375.
    Am Min 64:3-4 pp 369-375; Erd, R.C., J.F. McAllister, and G.D. Eberlein (1979) New data on hungchaoite, the second world occurrence, Death Valley region, California. American Mineralogist: 64: 369-375.
    Erd, R.C., J.F. McAllister & H. Almond (1959), Gowerite, a new hydrous calcium borate from Death Valley, California: American Mineralogist: 44: 912; Christ, C.L. & J.R. Clark (1960), X-ray crystallography and crystal chemistry of gowerite, CaO-3B2O3-5H2O: American Mineralogist: 45: 230-234; Konnert, J.A., Clark, J.R., and Christ, C.L. (1972) Gowerite, CaB5O8(OH) •B(OH)3•3H2O: crystal structure and comparison with related borates. American Mineralogist: 57: 381-396; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 252.
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    Copyright © Jolyon Ralph and Ida Chau 1993-2012. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Further information contact the 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 hundreds 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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