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Melanophlogite

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Case Montanini, Sant'Andrea Bagni, Medesano, Parma Province, Emilia-Romagna, Italy
© Chinellato Matteo

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Formula:
46SiO
 
2
·6(N
 
2
,CO
 
2
)·2(CH
 
4
,N
 
2
)
System:TetragonalColour:Colorless, white, ...
Hardness:6½ - 7
This page provides mineralogical data about Melanophlogite.

Classification of Melanophlogite

IMA status:Approved
Strunz 8th edition ID:4/D.01-40
Nickel-Strunz 10th (pending) edition ID:4.DA.25

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
D : Metal: Oxygen = 1:2 and similar
A : With small cations: Silica family
Dana 8th edition ID:75.2.2.1

75 : TECTOSILICATES Si Tetrahedral Frameworks
2 : Si Tetrahedral Frameworks - SiO2 with H2O and organics
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Type Occurrence of Melanophlogite

Type Locality:Giona Mine, Milena, Caltanissetta Province, Sicily, Italy
Year of Discovery:1876

Physical Properties of Melanophlogite

Lustre:Vitreous
Colour:Colorless, white, water-clear (pale yellow to deep red brown with impurities)
Streak:White
Hardness (Mohs):6½ - 7

Crystallography of Melanophlogite

Crystal System:Tetragonal
Cell Parameters:a = 26.82Å, c = 13.37Å
Ratio:a:c = 1 : 0.499
Unit Cell Volume:V 9,617.21 ų (Calculated from Unit Cell)
Crystal Atlas:
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Melanophlogite no.2 - Goldschmidt (1913-1926)

About Crystal Atlas

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The mindat.org Crystal Atlas allows you to view a selection of crystal drawings of real and idealised crystal forms for this mineral and, in certain cases, 3d rotating crystal objects. You need Java to see these. You can download Java for free - click here to download Java

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Chemical Properties of Melanophlogite

Formula:
46SiO
 
2
·6(N
 
2
,CO
 
2
)·2(CH
 
4
,N
 
2
)
Essential elements:C, H, N, O, Si
All elements listed in formula:C, H, N, O, Si
Common Impurities:ORG,C,H,S

Relationship of Melanophlogite to other Species

Related Minerals - Nickel-Strunz Grouping):
4.DA.05Quartz
SiO
 
2
4.DA.05Seifertite
SiO
 
2
4.DA.10Opal
SiO
 
2
·nH
 
2
O
4.DA.10Tridymite
SiO
 
2
4.DA.15Cristobalite
SiO
 
2
4.DA.20Mogánite
SiO
 
2
4.DA.30Lechatelierite
SiO
 
2
4.DA.35Coesite
SiO
 
2
4.DA.40Stishovite
SiO
 
2
4.DA.45Keatite

Other Names for Melanophlogite

German names:
Melanophlogit
Russian names:
Меланофлогит
Spanish names:
Melanophlogita

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 Melanophlogite

Reference List:American Mineralogist (1963): 48: 854-867.

American Mineralogist (1972): 57: 779-796.

Zeitschrift für Kristallographie (1983): 164: 247-257.

Mineralogical Record (2002): 33: 237-242.

Adorni, F., Tadeo, F., Adorni, B. 2004): La melanoflogite di Case Montanini. Rivista Mineralogica Italiana, 3/2004, 126-136.

Tribaudino, M., Artoni, A., Mavris, Ch., Bersani, D., Lottici, P.P., Belletti, D. (2008): Single-crystal X-ray and Raman investigation on melanophlogite from Varano Marchesi (Parma, Italy). American Mineralogist, 93, 88-94.

Internet Links for Melanophlogite

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Melanophlogite in the Natural History Museum (London) online catalogue
  • Melanophlogite details from Handbook of Mineralogy (PDF)
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    • Localities for Melanophlogite

    Hide Locality List
    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.
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    (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.
    Czech Republic
     
    • Bohemia (Böhmen; Boehmen)
      • Pardubice Region
    		Prachař, I.: Současný stav výskytu nerostů ve Chvaleticích. Acta musei Reginaehradecensis, série A: vědy přírodní, 1981, roč. XVI., s. 99-102.
      • Ústí Region
        • Most
    		Filippi, M.: Melanoflogit – vzácný polymorf hmoty SiO2 a jeho druhý výskyt v České republice. Bulletin Mineralogicko-petrografického oddělení Národního muzea v Praze, 2002, roč. 10, s. 120-130.
    Italy
     
    • Emilia-Romagna
      • Parma Province
        • Medesano
          • Sant'Andrea Bagni
    		Adorni, F., Tateo, F., Adorni, B. (2004): La melanoflogite di Case Montanini (S. Andrea Bagni, Medesano, Appennino parmense). Rivista Mineralogica Italiana, 28, 126-136.
    Adorni, F., Tateo, F., Adorni, B. (2004): La melanoflogite di Case Montanini (S. Andrea Bagni, Medesano, Appennino parmense). Rivista Mineralogica Italiana, 28, 126-136.
    • Piedmont
      • Torino Province
        • Canavese District
          • Léssolo
            • Cálea
    		http://www.webmineralshop.com/articoli/brosso_eng.htm
    • Sicily
      • Caltanissetta Province
        • Milena
    		Am Min 57 (1972), 779
    • Tuscany
      • Livorno Province
        • Livorno
    		http://www.flashnet.it/users/fn25936n/
        • Rosignano Marittimo
    Grassellini Troysi, M. & Orlandi, P. (1972): Sulla melanoflogite del Fortullino (Livorno). Atti della Società Toscana di Scienze Naturali, Memorie, Serie A: Processi Verbali, 79, 245-250; Gallo, S. (1974): Melanophlogite, a new and interesting find. Mineralogical Record, 5(5), 207-208.
    Ukraine
     
    • Crimea Oblast'
    		World of Stones v.9
    USA
     
    • California
      • Napa Co.
    		[MinRec 33:240]
      • San Benito Co.
        • New Idria District
    		Mineralogical Record: 36(4): 337-363.
    [MinRec 33:241]
      • Santa Clara Co.
    		[MinRec 33:239]
    Mineral and/or Locality
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