Cannilloite Root Name Group
A group of related mineral species
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Formula:
CaCa2(C2+4C3+)(Si5Al3O22)W2
C2+ (= IMA C2+ position) = Mg or Fe2+
C3+ (= 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.
C3+ (= 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.
Only fluor-cannilloite has been found in nature.
Unique Identifiers
Mindat ID:
43386
Long-form identifier:
mindat:1:1:43386:0
Chemistry of Cannilloite Root Name Group
Mindat Formula:
CaCa2(C2+4C3+)(Si5Al3O22)W2
C2+ (= IMA C2+ position) = Mg or Fe2+
C3+ (= 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.
C2+ (= IMA C2+ position) = Mg or Fe2+
C3+ (= 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.
Crystal Structure
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0001825 | 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 |  | 1996 | 0 | 293 | |
| 0001824 | 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 | | 1996 | 0 | 293 | |
| 0001823 | 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 | | 1996 | 0 | 293 |
CIF Raw Data - click here to close
Relationship of Cannilloite Root Name Group to other Species
Other Members of Calcium Amphibole Subgroup:
| Actinolite Root Name Group | ◻Ca2(Mg0-4.5C2+0.5-5)Si8O22(OH,F,Cl)2 | |
| Edenite Root Name Group | ACa2C5(AlSi7O22)W2 | Mon. |
| Hastingsite Root Name Group | ACa2(C2+4Fe3+)(Al2Si6O22)W2 | |
| Hornblende Root Name Group | ◻Ca2(C2+4C3+)(AlSi7O22)W2 | Mon. |
| Joesmithite | Pb2+Ca2(Mg3Fe3+2)(Si6Be2)O22(OH)2 | Mon. 2/m : P2/b |
| Pargasite Root Name Group | ACa2(C2+4C3+)(Al2Si6O22)W2 | |
| Sadanagaite Root Name Group | ACa2(C2+3C3+2)(Si5Al3O22)W2 | Mon. |
| Tremolite Root Name Group | ◻Ca2(Mg4.5-5C2+0-0.5)Si8O22W2 | |
| Tschermakite Root Name Group | ◻Ca2(C2+3C3+2)(Al2Si6O22)W2 |
Cannilloite Root Name Group Members:
| Fluoro-cannilloite | CaCa2(Mg4Al)(Si5Al3)O22F2 | Mon. 2/m : B2/m |
Other Information
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for Cannilloite Root Name Group
mindat.org URL:
https://www.mindat.org/min-43386.html
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References for Cannilloite Root Name Group
Localities for Cannilloite Root Name Group
Showing 6 localities.
symbol to view information about a locality.
The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and 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).
All localities listed without proper references should be considered as questionable.
China | |
| [Fluoro-cannilloite] Kristalldruse shop |
Finland | |
| [Fluoro-cannilloite] Hawthorne et al. (1996) |
| [Fluoro-cannilloite] Hietala |
Madagascar | |
| [Fluoro-cannilloite] Lapis 21 (11) |
Vietnam | |
| [Fluoro-cannilloite] www.thearkenstone.com (n.d.) +1 other reference |
| [Fluoro-cannilloite] Eugeni Bareche (2007) |
