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Canavesite

A valid IMA mineral species
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09651840014946682396665.jpg
Canavesite

Brosso Mine, Calea, Lessolo, Metropolitan City of Turin, Piedmont, Italy
08649090014946682459773.jpg
Canavesite

Brosso Mine, Calea, Lessolo, Metropolitan City of Turin, Piedmont, Italy
09486550014946682422609.jpg
Canavesite

Brosso Mine, Calea, Lessolo, Metropolitan City of Turin, Piedmont, Italy
02901980014946681132216.jpg
Canavesite

Brosso Mine, Calea, Lessolo, Metropolitan City of Turin, Piedmont, Italy
08649090014946682459773.jpg
Canavesite

Brosso Mine, Calea, Lessolo, Metropolitan City of Turin, Piedmont, Italy
06212280014946681132130.jpg
Canavesite

Brosso Mine, Calea, Lessolo, Metropolitan City of Turin, Piedmont, Italy
09112350014946682456271.jpg
Canavesite

Brosso Mine, Calea, Lessolo, Metropolitan City of Turin, Piedmont, Italy
08649090014946682459773.jpg
Canavesite

Brosso Mine, Calea, Lessolo, Metropolitan City of Turin, Piedmont, Italy
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About CanavesiteHide

Formula:
Mg2(HBO3)(CO3) · 5H2O
Colour:
Milky-white
Lustre:
Vitreous
Specific Gravity:
1.790 (Calculated)
Crystal System:
Monoclinic
Name:
Named in 1978 by Giovanni Ferraris, Marinella Franchini-Angela, and Paolo Orlandini for the type locality, Vola Gera Tunnel, Brosso, Canavese District, Torino, Italy.
This page provides mineralogical data about Canavesite.


Unique IdentifiersHide

Mindat ID:
879
Long-form identifier:
mindat:1:1:879:8
GUID
(UUID V4):
5210a144-9261-4a45-b5ae-e7b5b3e86066

IMA Classification of CanavesiteHide

Classification of CanavesiteHide

Strunz-mindat (2024):
6.H0.50

6 : BORATES
H : Unclassified borates
0 :
Dana 8th ed.:
17.1.8.1

17 : COMPOUND CARBONATES
1 : Miscellaneous
Hey's CIM Ref.:
10.4.1

10 : Borates with other anions
4 : Borates with carbonate

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference
CnvIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of CanavesiteHide

Lustre:
Vitreous
Transparency:
Transparent
Comment:
Silky in aggregates
Colour:
Milky-white
Streak:
White
Tenacity:
Flexible
Comment:
Fragile but slightly flexible
Density:
1.790 g/cm3 (Calculated)

Optical Data of CanavesiteHide

Type:
Biaxial (+)
RI values:
nα = 1.485(4) nβ = 1.494(4) nγ = 1.505(2)
2V:
Calculated: 86°
Max Birefringence:
δ = 0.020
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
none

Chemistry of CanavesiteHide

Mindat Formula:
Mg2(HBO3)(CO3) · 5H2O
Elements listed:
B, C, H, Mg, O - search for minerals with similar chemistry

Crystallography of CanavesiteHide

Crystal System:
Monoclinic
Cell Parameters:
a = 23.49(2) Å, b = 6.16(6) Å, c = 21.91(2) Å
β = 114.91(9)°
Ratio:
a:b:c = 3.813 : 1 : 3.557
Unit Cell V:
2,875.41 ų (Calculated from Unit Cell)
Z:
12
Morphology:
Elongate on [010]
Comment:
Point Group: n.d.; Space Group: n.d.

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
9.54 Å(100)
8.12 Å(40)
7.80 Å(18)
4.56 Å(21)
3.110 Å(19)

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 7: Great Oxidation Event<2.4
47a : [Near-surface hydration of prior minerals]
47c : [Carbonates, phosphates, borates, nitrates]
Stage 10b: Anthropogenic minerals<10 Ka
55 : Anthropogenic mine minerals

Type Occurrence of CanavesiteHide

Type Locality:
ⓘ Brosso Mine, Calea, Lessolo, Metropolitan City of Turin, Piedmont, Italy
General Appearance of Type Material:
Milky-white rosette-like aggregates of fibers on ludwigite and magnetite skarns.
Place of Conservation of Type Material:
Natural History Museum, Milan, Italy 17349, M30079, M30099, M300100, M300102.
National Museum of Natural History (Smithsonian), Washington, D.C., USA, 148483–148485.
University of Florence, Florence, Italy.
University of Torino, Torino, Italy.
National School of Mines, Paris, France.
The Natural History Museum, London, England, 1981,468.
Geological Setting of Type Material:
secondary mineral on tunnel surfaces in an abandoned mine in weathering ludwigite–magnetite skarn
Associated Minerals at Type Locality:
LudwigiteMagnetite
Reference:
Ferraris, G., Franchini-Angela, M., Orlandi, P. (1978) Canavesite, a new carboborate mineral from Brosso, Italy. The Canadian Mineralogist: 16: 69-73.
Download:
https://rruff.info/rruff_1.0/uploads/CM16_69.pdf

Synonyms of CanavesiteHide

Other Language Names for CanavesiteHide

German:Canavesit
Spanish:Canavesita

Common AssociatesHide

Associated Minerals Based on Photo Data:
54 photos of Canavesite associated with DypingiteMg5(CO3)4(OH)2 · 5H2O
16 photos of Canavesite associated with InderiteMgB3O3(OH)5 · 5H2O
8 photos of Canavesite associated with PyriteFeS2
4 photos of Canavesite associated with NesquehoniteMgCO3 · 3H2O
4 photos of Canavesite associated with Goethiteα-Fe3+O(OH)
1 photo of Canavesite associated with MagnetiteFe2+Fe3+2O4
1 photo of Canavesite associated with MagnesiteMgCO3
1 photo of Canavesite associated with SulphurS8

Related Minerals - Strunz-mindat GroupingHide

6.H0.05ChelkariteCaMgB2O4(Cl,OH)2 · 5H2O Or near, with Cl:OH = 3:1Orth. mmm (2/m 2/m 2/m) : Pbca
6.H0.10Braitschite-(Ce)(Ca,Na2)7(Ce,La)2B22O43 · 7H2OHex. 6/m : P6/m
6.H0.15SatimoliteKNa2(Al5Mg2)[B12O18(OH)12](OH)6Cl4 · 4H2OTrig. 3m (3 2/m) : R3m
6.H0.20IquiqueiteK3Na4Mg(CrO4)B24O39(OH) · 12H2OTrig. 3m : P3 1c
6.H0.25WardsmithiteCa5Mg[B4O7]6 · 30H2OHex.
6.H0.35HalurgiteMg4[B8O13(OH)2]2 · 7H2OMon. 2/m : P2/b
6.H0.40EkateriniteCa2(B4O7)(Cl,OH)2 · 2H2OHex. 6 : P6
6.H0.45VitimiteCa6[B14O19](SO4)(OH)14 · 5H2OMon.
6.H0.55QilianshaniteNaHCO3 · H3BO3 · 2H2OMon. 2 : B2

Fluorescence of CanavesiteHide

Other InformationHide

Notes:
Effervesces with dilute HCl at room temperature.
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 CanavesiteHide

References for CanavesiteHide

Localities for CanavesiteHide

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 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). 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 (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
Italy (TL)
 
  • Piedmont
    • Metropolitan City of Turin
      • Lessolo
        • Calea
Ferraris et al. (1978)
USA
 
  • New Jersey
    • Sussex County
      • Ogdensburg
        • Sterling Hill
Dunn (1995)
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