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Hephaistosite

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Big Photo

La Fossa Crater, Vulcano Island, Eolie Islands (Aeolian Islands), Lipari, Messina Province, Sicily, Italy
© D. Preite - E.B.

Show Hephaistosite Photos (7)



Formula:
TlPb
 
2
Cl
 
5
System:Monoclinic
Name:
From Greek mythology for Hephaistos, the god of fire, equating to the Roman god of fire Vulcano, name of the type locality.
Isostructural with:Challacolloite


The Tl analogue of challacolloite.

Classification of Hephaistosite

IMA status:Approved 2007
Nickel-Strunz 10th (pending) edition ID:3.AA.60

3 : HALIDES
A : Simple halides, without H2O
A : M:X = 1:1, 2:3, 3:5, etc.
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Type Occurrence of Hephaistosite

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

Crystallography of Hephaistosite

Crystal System:Monoclinic
Class (H-M):2/m - Prismatic
Space Group:P21/b {P1 1 21/b} {P21/c} {P1 21/c 1} {P21/a}
Cell Parameters:a = 8.9477Å, b = 7.9218Å, c = 12.4955Å
β = 90.092°
Ratio:a:b:c = 1.13 : 1 : 1.577
Unit Cell Volume:V 885.70 ų (Calculated from Unit Cell)
X-Ray Powder Diffraction:
d-spacingIntensity
3.971 (83)
3.696 (100)
2.851 (38)
2.569 (42)
2.273 (22)
2.236 (25)
2.109 (45)
1.848 (41)

Chemical Properties of Hephaistosite

Formula:
TlPb
 
2
Cl
 
5
Essential elements:Cl, Pb, Tl
All elements listed in formula:Cl, Pb, Tl

Relationship of Hephaistosite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
3.AA.05Marshite
CuI
3.AA.05Miersite
(Ag,Cu)I
3.AA.05Nantokite
CuCl
3.AA.05UM1999-11:I:CuS
Cu(I,S)
3.AA.10Iodargyrite
AgI
3.AA.10Tocornalite
(Ag,Hg)I
3.AA.15Bromargyrite
AgBr
3.AA.15Chlorargyrite
AgCl
3.AA.20Carobbiite
KF
3.AA.20Griceite
LiF
3.AA.20Halite
NaCl
3.AA.20Sylvite
KCl
3.AA.20Villiaumite
NaF
3.AA.25Salammoniac
NH
 
4
Cl
3.AA.25UM1998-03-Cl:Tl
TlCl
3.AA.25Lafossaite
Tl(Cl,Br)
3.AA.30Calomel
(Hg
+
2
)Cl
 
2
3.AA.30Kuzminite
(Hg
+
2
)(Br,Cl)
 
2
3.AA.30Moschelite
(Hg
+
2
)I
 
2
3.AA.35Neighborite
NaMgF
 
3
3.AA.40Chlorocalcite
KCaCl
 
3
3.AA.45Kolarite
PbTeCl
 
2
3.AA.50Radhakrishnaite
PbTe
 
3
(Cl,S)
 
2
3.AA.55Challacolloite
KPb
 
2
Cl
 
5

Other Names for Hephaistosite

Synonyms:
IMA2006-043
Other Languages:

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 Hephaistosite

Reference List:

- +
Campostrini, I., Demartin, F., Gramaccioli, C.M., Orlandi, P. (2008): Hephaistosite, TlPb2Cl5, a new thallium mineral from La Fossa crater, Vulcano, Aeolian Islands, Italy. Canadian Mineralogist, 46, 701-708.

Mitolo D., Pinto D., Garavelli A., Bindi L. & Vurro F. (2009): The role of the minor substitutions in the crystal structure of natural challacolloite, KPb2Cl5, and hephaistosite, TlPb2Cl5, from Vulcano (Aeolian Archipelago, Italy). Mineralogy and Petrology 96, 121-128.

Internet Links for Hephaistosite

Search Engines:
  • Look for Hephaistosite on Google
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    • External Links:
  • Look for Hephaistosite on Webmineral
  • Look for Hephaistosite on Athena Mineralogy
  • Look for Hephaistosite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Mineral Dealers:
  • Fine Minerals from Weinrich Minerals, Inc.
  • The Arkenstone - Fine Minerals
  • Search for Hephaistosite from all mineral dealers at minfind.com
  • Fabre Minerals - search for Hephaistosite specimens
  • Edwards Minerals - Fine Specimens
  • Visit the Pueblo Gem and Mineral show, Tucson 2012
  • webminerals
  • Mineral Classics - Worldwide Collector Quality Minerals and Gems
  • Buy fine minerals and gemstones from Pala International
  • DAKOTA MATRIX offers Cabinet and Rare Species from Worldwide Localities.
  • Find Hephaistosite on www.crystalclassics.co.uk
  • Wilensky Fine Minerals
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    • Localities for Hephaistosite

    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.
    Italy
     
    • Sicily
      • Messina Province
        • Lipari
          • Eolie Islands (Aeolian Islands)
            • Vulcano Island
    		Campostrini I., Demartin F., Gramaccioli C.M. (2008): Hephaistosite, TlPb2Cl5 a new mineral species from La Fossa crater, Vulcano, Aeolian Islands, Italy. - Canadian Mineralogist 46, 701-708; Mitolo D., Pinto D., Garavelli A., Bindi L. & Vurro F. (2009): The role of the minor substitutions in the crystal structure of natural challacolloite, KPb2Cl5, and hephaistosite, TlPb2Cl5, from Vulcano (Aeolian Archipelago, Italy). Mineralogy and Petrology 96, 121-128.
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    Copyright © Jolyon Ralph and Ida Chau 1993-2011. 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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