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Brugnatellite

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Luigi Valentino Brugnatelli [1859-1928]
Formula:
Mg6Fe3+(CO3)(OH)13 · 4H2O
Colour:
Pink to yellowish or brownish-white.
Lustre:
Pearly
Hardness:
2
Specific Gravity:
2.14
Crystal System:
Hexagonal
Name:
Named in 1909 by Ettore Artini in honor of Luigi Valentino Brugnatelli [1859-1928], Professor of Mineralogy, University of Pavia, Italy.
As part of the recent re-evaluation of the nomenclature of the hydrotalcite supergroup (Mills et al., 2012), brugnatellite, originally a grandfathered species, was identified as a questionable species which needs further investigation.

[Possibly identical to pyroaurite? X-ray powder diffraction pattern is very similar, and space group of brugnatellite is not known; given stoichiometry does not fit other members of the manasseite group; no modern investigation has been carried out (Comment by U. Kolitsch 2007)]


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Classification of BrugnatelliteHide

Approved, 'Grandfathered' (first described prior to 1959), Questionable
First Published:
1909
5.DA.45

5 : CARBONATES (NITRATES)
D : Carbonates with additional anions, with H2O
A : With medium-sized cations
16b.7.5.1

16b : HYDRATED CARBONATES CONTAINING HYDROXYL OR HALOGEN
7 : Miscellaneous
11.13.4

11 : Carbonates
13 : Carbonates of Fe

Physical Properties of BrugnatelliteHide

Pearly
Transparency:
Transparent, Translucent
Colour:
Pink to yellowish or brownish-white.
Streak:
White
Hardness:
Cleavage:
Perfect
{0001}
Fracture:
Micaceous
Density:
2.14 g/cm3 (Measured)    2.21 g/cm3 (Calculated)

Optical Data of BrugnatelliteHide

Type:
Uniaxial (-)
RI values:
nω = 1.540 nε = 1.510
Birefringence:
0.03
Max Birefringence:
δ = 0.030
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Low
Optical Extinction:
Parallel
Pleochroism:
Visible
Comments:
O = yellowish red
E = colourless

Chemical Properties of BrugnatelliteHide

Formula:
Mg6Fe3+(CO3)(OH)13 · 4H2O
IMA Formula:
Mg6Fe3+CO3(OH)13 · 4H2O

Crystallography of BrugnatelliteHide

Crystal System:
Hexagonal
Cell Parameters:
a = 5.48 Å, c = 16.0 Å
Ratio:
a:c = 1 : 2.92
Unit Cell V:
416.11 ų (Calculated from Unit Cell)
Z:
1
Morphology:
Massive. Lamellar or foliated masses of small flakes flattened {0001}. Individual flakes have a three- or six-sided outline with striations intersecting at 60°.

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
7.93 (100)
3.96 (90)
2.63 (50)
2.35 (60)
2.00 (70)
1.78 (20)
1.69 (30)
1.56 (40)
1.53 (40)
1.51 (10)
1.45 (10)
1.34 (10)
1.30 (20)
1.23 (10)
1.14 (10)
1.08 (10)
Comments:
ICDD 14-365

Type Occurrence of BrugnatelliteHide

Other Language Names for BrugnatelliteHide

Relationship of Brugnatellite to other SpeciesHide

Other Members of this group:
CoalingiteMg10Fe3+2(OH)24[CO3] · 2H2OTrig.
Cualstibite GroupA group within the Hydrotalcite supergroup characterized by (M2+,M3+)(OH)2 brucite-type sheets, in which M2+ ...
Fougèrite Group
Glaucocerinite Group
Hydrocalumite Group
Hydrotalcite GroupMg6R3+2(OH)16CO3·4H2O, where R3+ = Al, Cr, or Fe
MuskoxiteMg7Fe4O13 · 10H2OTrig. 3m (3 2/m)
Quintinite Group
UM1987-05-OH:AlCMgMg4Al2(OH)12(CO3,SO4)•3H2O
Wermlandite Group
Woodwardite GroupMay be considered a subgroup of the Hydrotalcite Group.

Related Minerals - Nickel-Strunz GroupingHide

5.DA.AlexkhomyakoviteK6(Ca2Na)(CO3)5Cl·6H2OHex. 6/mmm (6/m 2/m 2/m) : P63/mcm
5.DA.05DypingiteMg5(CO3)4(OH)2 · 5H2OMon.
5.DA.05GiorgiositeMg5(CO3)4(OH)2 · 5-6H2O
5.DA.05HydromagnesiteMg5(CO3)4(OH)2 · 4H2OMon.
5.DA.05WidgiemoolthaliteNi5(CO3)4(OH)2 · 5H2OMon.
5.DA.05UM1986-10-CO:ClHMgMnZn (also called Mineral F, Dunn, 1995)Mg5(Zn,Mn)3(CO3)2(OH,Cl)12 · H2O
5.DA.05UM1987-01-CO:HMgSMg4(CO3)2(OH)4 · 6H2O ?Mon.
5.DA.10ArtiniteMg2(CO3)(OH)2 · 3H2OMon.
5.DA.10IndigiriteMg2Al2(CO3)4(OH)2 · 15H2O
5.DA.10ChlorartiniteMg2(CO3)(OH)Cl · 2H2OTrig. 3m : R3c
5.DA.15OtwayiteNi2(CO3)(OH)2 · H2OOrth.
5.DA.15ZaratiteNi3(CO3)(OH)4 · 4H2O ?Iso.
5.DA.20KambaldaiteNaNi4(CO3)3(OH)3 · 3H2OHex.
5.DA.25CallaghaniteCu2Mg2(CO3)(OH)6 · 2H2OMon.
5.DA.30Claraite(Cu,Zn)15(CO3)4(AsO4)2(SO4)(OH)14·7H2OTric.
5.DA.35HydroscarbroiteAl14(CO3)3(OH)36 · nH2OTric.
5.DA.35ScarbroiteAl5(CO3)(OH)13 · 5H2OHex.
5.DA.40CaresiteFe2+4Al2(OH)12[CO3] · 3H2OTrig.
5.DA.40QuintiniteMg4Al2(OH)12[CO3] · 3H2OHex. 6 2 2 : P63 2 2
5.DA.40CharmariteMn2+4Al2(OH)12[CO3] · 3H2O
5.DA.45Stichtite-2HMg6(Cr,Al)2(CO3)(OH)16 · 4H2OHex.
5.DA.45ChlormagaluminiteMg4Al2(OH)12Cl2 · 3H2OHex.
5.DA.45Hydrotalcite-2HMg6Al2(CO3)(OH)16 · 4H2OHex.
5.DA.45Pyroaurite-2HMg6Fe3+2(OH)16(CO3) · 4H2OHex. 6/mmm (6/m 2/m 2/m) : P63/mmc
5.DA.45ZaccagnaiteZn4Al2(OH)12[CO3] · 3H2OHex.
5.DA.50ComblainiteNi4Co2(OH)12[CO3] · 3H2OTrig.
5.DA.50DesautelsiteMg6Mn3+2(OH)16[CO3] · 4H2OTrig. 3m (3 2/m)
5.DA.50HydrotalciteMg6Al2(OH)16[CO3] · 4H2OTrig. 3m (3 2/m) : R3m
5.DA.50PyroauriteMg6Fe3+2(OH)16[CO3] · 4H2OTrig. 3m (3 2/m) : R3m
5.DA.50ReevesiteNi6Fe3+2(OH)16(CO3) · 4H2OTrig.
5.DA.50StichtiteMg6Cr3+2(OH)16[CO3] · 4H2OTrig. 3m (3 2/m) : R3m
5.DA.50TakoviteNi6Al2(OH)16[CO3] · 4H2OTrig.
5.DA.50UM1998-10-CO:CoHNiCo6Fe2(CO3)(OH)16 · 4H2O ?
5.DA.55CoalingiteMg10Fe3+2(OH)24[CO3] · 2H2OTrig.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

11.13.1SideriteFeCO3Trig. 3m (3 2/m) : R3c
11.13.2PyroauriteMg6Fe3+2(OH)16[CO3] · 4H2OTrig. 3m (3 2/m) : R3m
11.13.3Pyroaurite-2HMg6Fe3+2(OH)16(CO3) · 4H2OHex. 6/mmm (6/m 2/m 2/m) : P63/mmc
11.13.5CoalingiteMg10Fe3+2(OH)24[CO3] · 2H2OTrig.
11.13.6AnkeriteCa(Fe2+,Mg)(CO3)2Trig. 3 : R3

Fluorescence of BrugnatelliteHide

Not fluorescent in UV

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for BrugnatelliteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Artini (1909), Reale academia dei Lincei: 18(5): 3.
Artini (1922), Reale academia dei Lincei: 31: 491.
Fenoglio M. – (1938) Ricerche sulla brugnatellite. Periodico di Mineralogia – Roma: 9: 1-13.
Frondel (1941),Constitution and polymorphism of the pyroaurite and sjögrenite groups, American Mineralogist: 26: 295.
Palache, Charles, Harry Berman & Clifford Frondel (1944), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana Yale University 1837-1892, Volume I: Elements, Sulfides, Sulfosalts, Oxides. John Wiley and Sons, Inc., New York. 7th edition, revised and enlarged: 660-661.
Mills, S.J., Christy, A.G., Genin, J.-M.R., Kameda, T., Colombo, F. (2012): Nomenclature of the hydrotalcite supergroup: natural layered double hydroxides. Mineralogical Magazine, 76, 1289-1336.

Internet Links for BrugnatelliteHide

Localities for BrugnatelliteHide

This 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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Austria
 
  • Styria
    • Fischbacher Alpen
      • St. Jakob-Breitenau
        • Eibegggraben
Bojar, H.-P. & Postl, W. (2005)
    • Knittelfeld
      • St Lorenzen bei Knittelfeld
R. Exel: Die Mineralien und Erzlagerstätten Österreichs (1993)
Canada
 
  • Manitoba
    • Thompson Nickel Belt
      • Moab-Setting Lakes area
Richard Gunter photo and specimen (XRD identified)
  • Ontario
    • Hastings Co.
      • Dungannon Township
http://www.geologyontario.mndm.gov.on.ca/mndmfiles/mdi/data/records/MDI31F04SE00151.html
        • York River area
MSC Report 39; Sabina, A.P. (1982): Some rare minerals of the Bancroft area. Mineralogical Record 13 (4), 226-228
  • Québec
    • Estrie
      • Les Sources RCM
        • Asbestos
HORVÁTH, L., PFENNINGER-HORVÁTH, E. and SPERTINI, F. (2013) The Jeffrey mine, Asbestos, Québec, Canada: A mineralogical review. Mineralogical Record, 44, 375-417.
    • Laurentides
      • Antoine-Labelle RCM
Handbook of Mineralogy
Czech Republic
 
  • Moravia (Mähren; Maehren)
    • South Moravia Region
      • Oslavany
        • Hrubšice
Kovář, O., Losos, Z., Houzar, S., Zeman, J., 2008: Hydromagnezit, brugnatellit a coalingit v minerální asociasi puklin serpentinitu z kamenolomu „U Pustého mlýna“ u Hrubšic, moldanubikum, západní Morava. – Acta. Mus. Moraviae, Sci. geol., 93: 19-35.
Italy
 
  • Aosta Valley
    • Cogne Valley
      • Cogne
C.M. Gramaccioli (1975)-Minerali alpini e Prealpini-Edizioni Atlas Bergamo
    • Montjovet
Piccoli, G.C., Maletto, G., Bosio, P., Lombardo, B. (2007). Minerali del Piemonte e della Valle d'Aosta. Associazione Amici del Museo "F. Eusebio" Alba, Ed., Alba (Cuneo) 607 pp.
C.M. Gramaccioli (1975)-Minerali alpini e Prealpini-Edizioni Atlas Bergamo
  • Emilia-Romagna
    • Parma Province
      • Taro Valley
        • Borgo Val di Taro
          • Roccamurata
Pellecchia, M. & Mavris, C. (2012): Artinite e altri carbonati nella valle del fiume Taro, Parma. Rivista Mineralogica Italiana, 1/2012, 10-17.
  • Liguria
    • Genova Province
      • Genova
        • Borzoli
Giuseppe Pipino - L'antica miniera di Monte Ramazzo e i suoi minerali - Rivista Mineralogica Italiana, Milano, vol. 8, fasc. 3, 1977
Ciriotti, M.E., Blaß, G. (2010): Pot-pourri 2009: Identificazioni UKiS AMI, Minerali italiani di interesse. Micro, 1/2010, 124-127
  • Lombardy
    • Sondrio Province
      • Valtellina
          • Lanterna Valley
            • Lanzada
Handbook of Mineralogy
          • Torre di Santa Maria
            • Ciappanico
Atini, E., Atti Accad. Lincei, Roma, 18, 5,3 (1909).
Gramaccioli, C.M. (1975) Minerali alpini e prealpini. Istituto Italiano Edizioni Atlas, Bergamo, 2 vol., 472 pp. AA. VV., 1996. Collezionare minerali. Hobby & Work
  • Piedmont
    • Torino Province
      • Lanzo Valleys
        • Ala Valley
Piccoli, G.C., Maletto, G., Bosio, P., Lombardo, B. (2007). Minerali del Piemonte e della Valle d'Aosta. Associazione Amici del Museo "F. Eusebio" Alba, Ed., Alba (Cuneo) 607 pp.
        • Viù Valley
          • Viù
Piccoli, G.C., Maletto, G., Bosio, P., Lombardo, B. (2007): Minerali del Piemonte e della Valle d'Aosta. Associazione Amici del Museo "F. Eusebio" Alba, Ed., Alba (Cuneo) 607 pp.
Japan
 
  • Hokkaido
    • Kamikawa Province
      • Nakagawa-cho
Yamada, S. (2004) Nihonsan-koubutsu Gojuon-hairetsu Sanchi-ichiranhyou (111 pp.)
  • Honshu Island
    • Chubu Region
      • Aichi Prefecture
        • Shinshiro city
Suzuki, J., Ito, M. (1973) A new magnesium carbonate hydrate mineral, Mg5(CO3)4(OH)2.8H2O, from Yoshikawa, Aichi Prefecture, Japan. J. Japan Assoc. Mineral. Petrol. Econ. Geol.: 68: 353-361.
      • Gifu Prefecture
        • Kiyomimura
Handbook of Mineralogy
      • Shizuoka prefecture
        • Hamamatsu City
          • Inasa-cho
Handbook of Mineralogy
  • Kyushu Region
    • Fukuoka Prefecture
      • Iizuka City
Dr. Matsuo Nambu collection (curated by the Geological Survey of Japan)
Handbook of Mineralogy
    • Kumamoto Prefecture
Fujimoto, M. (1977) On some minerals associated with serpentinite from Mashiki town, Kumamoto Prefecture. Geoscience Magazine, 28, 255-259.
  • Shikoku Island
    • Ehime Prefecture
      • Shikokuchuo City
        • Doi
Handbook of Mineralogy
Morocco
 
  • Drâa-Tafilalet Region
    • Ouarzazate Province
      • Tazenakht
        • Bou Azzer District (Bou Azer District)
Handbook of Mineralogy
New Zealand
 
  • North Island
    • Manawatu-Wanganui
      • Tararua
        • Maharahara
Railton, G.L. & Watters, W.A., Minerals of New Zealand, New Zealand Geological Survey Bull. #104 (1990).
North Korea
 
  • South Hwanghae Province
    • Pyongsan-gun
      • Pongsan-myon
        • Namchol-li
Kinosaki, Y. (1941) Jour. Min. Soc. Korea, 24, 12.
Norway
 
  • Telemark
    • Kragerø
Handbook of Mineralogy
Sweden
 
  • Värmland
    • Filipstad
Kjell Gatedal
UK
 
Tindle, A.G. (2008) Minerals of Britian and Ireland
    • Shetland Islands
      • Unst
Livingstone, A. and MacPherson, H.G. (1983) Fifth supplementary list of British minerals (Scottish). Mineralogical Magazine, vol. 47, n° 342, p. 99-105.; Livingstone (2002) p. 160.
USA
 
  • Colorado
    • Gunnison Co.
      • White Earth District (Powderhorn District)
Minerals of Colorado (1997) Eckels, E. B.; USGS ProfessionaL Paper 197A
Mineral and/or Locality  
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