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IMA2009-049

Formula:
BiSI
System:Orthorhombic


I-dominant analogue of demicheleite-(Br) and demicheleite-(Cl)

Classification of IMA2009-049

IMA status:Approved 2009
mindat.org URL:http://www.mindat.org/min-39683.html
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Type Occurrence of IMA2009-049

Type Locality:La Fossa Crater, Vulcano Island, Eolie Islands (Aeolian Islands), Lipari, Messina Province, Sicily, Italy

Crystallography of IMA2009-049

Crystal System:Orthorhombic
Class (H-M):mmm (2/m 2/m 2/m) - Dipyramidal
Space Group:Pnma {P21/n 21/m 21/a}
Cell Parameters:a = 8.4501(7) Å, b = 10.1470(9) Å, c = 4.1389(4) Å
Ratio:a:b:c = 0.833 : 1 : 0.408
Unit Cell Volume:V 354.88 ų (Calculated from Unit Cell)
X-Ray Powder Diffraction:
d-spacingIntensity
6.490(100)
4.346(94)
3.896(90)
3.243(22)
2.999(22)
2.709(60)
2.466(21)

Chemical Properties of IMA2009-049

Formula:
BiSI
Essential elements:Bi, I, S
All elements listed in formula:Bi, I, S

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 IMA2009-049

Reference List:IMA Approvals - September 2009

Internet Links for IMA2009-049

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    Localities for IMA2009-049

    (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.
    Italy
     
    • Sicily
      • Messina Province
        • Lipari
          • Eolie Islands (Aeolian Islands)
            • Vulcano Island
    		IMA Approvals - Sept. 2009
    Mineral and/or Locality
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    Copyright © Jolyon Ralph and Ida Chau 1993-2009. 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. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 14th Nov 2009 20:34:56