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Cannilloite Root Name

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Formula:
Ca(Ca2)(Z2+4Z3+))(Al3Si5O22)(OH,F,Cl)2
Z2+ (= IMA C2+ position)= Mg or Fe2+
Z3+ (= IMA C3+ position) = Al or Fe3+
W = F or (OH)

On mindat.org we avoid using variables with the same symbol as elements and deviate from the IMA nomenclaure in that we use X rather than B, Z rather than C and (OH,F,Cl,O) rather than W.
Name:
Named after Elio Cannillo (b.1938) of Pavia, Italy, for his contribution to our understanding of the crystal chemistry of rock-forming minerals, particularly pyroxenes and amphiboles.
Canniloite root name minerals are defined as monoclinic amphiboles in the calcium amphibole subgroup with A(Ca)≥0.5 apfu and C 0.5≤(Al + Fe3+ +2Ti)≤1.5. The individual cannilloite minerals are defined by their dominant divalent and trivalent element in the C position and the dominant element in the W position.

Only fluor-cannilloite has been found in nature.


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Chemical Properties of Cannilloite Root NameHide

Formula:
Ca(Ca2)(Z2+4Z3+))(Al3Si5O22)(OH,F,Cl)2

Z2+ (= IMA C2+ position)= Mg or Fe2+
Z3+ (= IMA C3+ position) = Al or Fe3+
W = F or (OH)

On mindat.org we avoid using variables with the same symbol as elements and deviate from the IMA nomenclaure in that we use X rather than B, Z rather than C and (OH,F,Cl,O) rather than W.

Relationship of Cannilloite Root Name to other SpeciesHide

Other Members of this group:
Edenite Root NameA(Ca2)Z5(AlSi7O22)((OH,F,Cl)2Mon.
Hastingsite Root Name(A)(Ca2){Z2+4 Fe3+)(Al2Si6O22)(OH,F,Cl)2
Hornblende Root Name☐(Ca2)(Z2+4Z3+}(AlSi7O22)(OH,F,Cl)2Mon.
Joesmithite{Pb}{Ca2}{Mg3Fe3+2}(Be2Si6O22)(OH)2Mon.
Pargasite Root Name(A)(Ca2){Z2+4 Al)(Al2Si6O22)(OH,F,Cl)2
Sadanagaite Root NameA (Ca2)(Z2+3Z3+2)(Si5Al3O22)(OH,F,Cl)2Mon.
Tremolite-Actinolite Series☐{Ca2}{Z5}(Si8O22)(OH,F,Cl)2
Tschermakite Root Name☐(Ca2)(Z2+3Z3+2}(Al2Si6O22)(OH,F,Cl)2
Group Members:
Cannilloite Ca(Ca2)(Mg4Al)(Al3Si5O22)(OH)2Mon.
Ferri-cannilloite Ca(Ca2)(Mg4Fe3+)(Al3Si5O22)(OH)2
Ferri-fluoro-cannilloite (Ca)(Ca2){Mg4Fe3+}(Al3Si5O22)F2
Ferro-cannilloite Ca(Ca2)(Fe2+4Al)(Al3Si5O22)(OH)2
Ferro-ferri-cannilloite Ca(Ca2)(Fe2+4Fe3+)(Al3Si5O22)(OH)2
Ferro-ferri-fluoro-cannilloite {Ca}{Ca2}{Fe2+4Fe3+}(Al3Si5O22)F2
Ferro-fluoro-cannilloite {Ca}{Ca2}{Fe2+4Al}(Al3Si5O22)F2
Fluoro-cannilloite {Ca}{Ca2}{Mg4Al}(Al3Si5O22)(F,OH)2Mon.

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 Cannilloite Root NameHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Hawthorne F.C., Oberti R., Ungaretti L., Grice J.D. (1996) A new hyper-calcic amphibole with Ca at the A site: Fluor-cannilloite from Pargas, Finland. American Mineralogist: 81: 995-1002.
Hawthorne, F.C., Oberti, R., Harlow, G.E., Maresch, W.V., Martin, R.F., Schumacher, J.C., Welch, M.D. (2012) Nomenclature of the amphibole supergroup. American Mineralogist: 97: 2031-2048.

Internet Links for Cannilloite Root NameHide

Localities for Cannilloite Root NameHide

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.
China
 
  • Yunnan
    • Wenshan
      • Wenshan Co.
[Fluoro-cannilloite] Kristalldruse shop, Munich, Bavaria, Germany
Finland
 
  • Southwest Finland
[Fluoro-cannilloite] Hawthorne, F. C., Oberti, R., Ungaretti, L., Grice, J. D. (1996): A new hyper-calcic amphibole with Ca at the A site: Fluor-cannilloite from Pargas, Finland. American Mineralogist. 81, 995-1002
[Fluoro-cannilloite] Hietala, Satu 2012. Paraisten kalkkilouhoksen mineraaleista. Kivi 1/2012 12-18.
Madagascar
 
  • Anosy
    • Amboasary Sud
[Fluoro-cannilloite] Lapis 21 (11): p 45. (abstract)
Vietnam
 
  • Yenbai Province (Yen Bai Province)
[Fluoro-cannilloite] http://www.thearkenstone.com/tuc-china2.html; Eugeni Bareche (2007) An Phu, Luc Yen, Vietnam. Revista de Minerales (Barcelona), 2007/2, 26-29.
      • An Phu (Anfu)
[Fluoro-cannilloite] Eugeni Bareche (2007) An Phu, Luc Yen, Vietnam. Revista de Minerales (Barcelona), 2007/2, 26-29
Mineral and/or Locality  
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