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Tazzoliite

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About TazzoliiteHide

04326140015107995923841.jpg
Vittorio Tazzoli
Formula:
Ba4-xNaxTi2Nb3SiO17[PO2(OH)2]x(OH)(1-2x)
(0≤x≤0,5)
Colour:
pale orange
Lustre:
Pearly
Hardness:
6
Specific Gravity:
4.489 (Calculated)
Crystal System:
Orthorhombic
Name:
Named in honor of Vittorio Tazzoli (b. 1938), chemist, mineralogist, crystallographer and professor at the University of Pavia and the University of Messina. He made significant contributions, particularly in the area of pyroxenes.
New structure type related to pyrochlore



Classification of TazzoliiteHide

Approved
Approval Year:
2011
First Published:
2012

Pronounciation of TazzoliiteHide

Pronounciation:
PlayRecorded byCountry
Jolyon & Katya RalphUnited Kingdom

Physical Properties of TazzoliiteHide

Pearly
Transparency:
Transparent
Colour:
pale orange
Streak:
white
Hardness:
Hardness:
VHN15=788 kg/mm2 - Vickers
Tenacity:
Brittle
Cleavage:
Perfect
{010}
Fracture:
Irregular/Uneven
Density:
4.489 g/cm3 (Calculated)

Optical Data of TazzoliiteHide

Type:
Biaxial (-)
Pleochroism:
Non-pleochroic
Comments:
2.04 average RI

Chemical Properties of TazzoliiteHide

Formula:
Ba4-xNaxTi2Nb3SiO17[PO2(OH)2]x(OH)(1-2x)

(0≤x≤0,5)
IMA Formula:
Ba2CaSr0.5Na0.5Ti2Nb3SiO17[PO2(OH)2]0.5

Crystallography of TazzoliiteHide

Crystal System:
Orthorhombic
Class (H-M):
mmm (2/m 2/m 2/m) - Dipyramidal
Space Group:
Fmmm
Setting:
Fmmm
Cell Parameters:
a = 7.4105(4) Å, b = 20.0675(11) Å, c = 21.4471(11) Å
Ratio:
a:b:c = 0.369 : 1 : 1.069
Unit Cell V:
3,189.40 ų (Calculated from Unit Cell)
Z:
8
Morphology:
platy crystals

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.66Å(60)
3.16Å(30)
3.05Å(100)
2.979Å(25)
2.835Å(50)
1.854Å(25)
1.822Å(25)

Type Occurrence of TazzoliiteHide

General Appearance of Type Material:
Fan shaped groups of platy crystals in cavities.
Place of Conservation of Type Material:
Museo di Mineralogia di Padova, Padova,Italy,registration number 9426
Associated Minerals at Type Locality:
Reference:
Cámara, F., Nestola, F., Bindi, L., Guastoni, A., Zorzi, F., Peruzzo, L., Pedron, D. (2012) Tazzoliite: a new mineral with a pyrochlore-related structure from the Euganei Hills, Padova, Italy. Mineralogical Magazine: 76(4): 827-838.

Synonyms of TazzoliiteHide

Fluorescence of TazzoliiteHide

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 TazzoliiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Cámara, F., Nestola, F., Guastoni, A., Zorzi, F., Bindi, L., Pedron, D. (2011) Tazzoliite, IMA 2011-018. CNMNC Newsletter No. 10, October 2011, page 2552.
Cámara, F., Nestola, F., Bindi, L., Guastoni, A., Zorzi, F., Peruzzo, L., Pedron, D. (2012) Tazzoliite: a new mineral with a pyrochlore-related structure from the Euganei Hills, Padova, Italy. Mineralogical Magazine: 76(4): 827-838.

Internet Links for TazzoliiteHide

Localities for TazzoliiteHide

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.
Italy (TL)
 
  • Veneto
    • Padova Province
      • Euganean Hills (Euganei Hills)
        • Galzignano Terme
Cámara, F., Nestola, F., Guastoni, A., Zorzi, F., Bindi, L. and Pedron, D. (2011): Tazzoliite, IMA 2011-018. CNMNC Newsletter No. 10, 2552; Cámara, F., Nestola, F., Bindi, L., Guastoni, A., Zorzi, F., Peruzzo, L., Pedron, D. (2012) Tazzoliite: a new mineral with a pyrochlore-related structure from the Euganei Hills, Padova, Italy. Mineralogical Magazine, 76, 4, 827-838; Fabris, L., Guastoni, A. (2014): Provincia di Padova. In: Zorzi, F., Boscardin, M., (eds.), Minerali del Veneto. Alla scoperta dei tesori della nostra regione. Museo di Storia Naturale e Archeologia di Montebelluna - Treviso, Cierre Edizioni, Sommacampagna, pages 121-141.
 
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