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Debattistiite

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About DebattistiiteHide

01576560014972765886509.jpg
Luca de Battisti
Formula:
Ag9Hg0.5As6S12Te2
Colour:
Black
Lustre:
Metallic
Hardness:
2 - 2½
Specific Gravity:
5.647 (Calculated)
Crystal System:
Triclinic
Name:
Named by A. Guastoni, L. Bindi, and F. Nestola in 2012 in honor of Luca De Battisti, a systematic mineralogist and expert on the minerals of Lengenbach quarry.
This page provides mineralogical data about Debattistiite.


Classification of DebattistiiteHide

Approved
Approval Year:
2012
First Published:
2012

Physical Properties of DebattistiiteHide

Metallic
Transparency:
Opaque
Colour:
Black
Streak:
Gray
Hardness:
2 - 2½ on Mohs scale
Hardness:
VHN25=65 - 94 kg/mm2 - Vickers
Hardness Data:
Measured
Tenacity:
Brittle
Cleavage:
None Observed
Fracture:
Irregular/Uneven
Density:
5.647 g/cm3 (Calculated)

Optical Data of DebattistiiteHide

Type:
Anisotropic
Anisotropism:
Strong, brownish to bluish
Reflectivity:
471.1nmR1=27.2%R2= 34.5%
548.3nmR1=25.5%R2= 31.0%
586.6nmR1=22.9%R2= 28.4%
652.3nmR1=20.1%R2= 25.2%

Reflectance graph
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 34.5%.
R1 shown in black, R2 shown in red
Colour in reflected light:
Dark gray
Pleochroism:
Weak
Comments:
Dark gray to greenish gray

Chemical Properties of DebattistiiteHide

Formula:
Ag9Hg0.5As6S12Te2
IMA Formula:
Ag9Hg0.5As6S12Te2

Crystallography of DebattistiiteHide

Crystal System:
Triclinic
Class (H-M):
1 - Pinacoidal
Space Group:
P1
Setting:
P1
Cell Parameters:
a = 7.832(5) Å, b = 8.606(4) Å, c = 10.755(5) Å
α = 95.563(9)°, β = 95.880(5)°, γ = 116.79(4)°
Ratio:
a:b:c = 0.91 : 1 : 1.25
Unit Cell V:
635.28 ų (Calculated from Unit Cell)
Morphology:
Tabular well-formed crystals.
Comment:
New structure type

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
10.56Å(100)
7.582Å(4)
5.736Å(3)
4.038Å(3)
3.367Å(3)
3.301Å(4)
2.742Å(7)
2.733Å(7)

Type Occurrence of DebattistiiteHide

Place of Conservation of Type Material:
Museum of Mineralogy of the Department of Geosciences at the University of Padova, Italy, catalogue number MMP M10680
Associated Minerals at Type Locality:

Synonyms of DebattistiiteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
1 photo of Debattistiite associated with RealgarAs4S4

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 DebattistiiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Guastoni, A., Bindi, L., Nestola, F. (2012) Debattistiite, Ag9Hg0.5As6S12Te2, a new Te-bearing sulfosalt from Lengenbach quarry, Binn valley, Switzerland: description and crystal structure. Mineralogical Magazine: 76: 743-750.
Williams, P.A., Hatert, F., Pasero, M., Mills, S.J. (2012) IMA Commission on New Minerals, Nomenclature and classification (CNMNC) Newsletter 13, New minerals and nomenclature modifications approved in 2012. Mineralogical Magazine: 76: 807-817.
Belakovskiy, D.I., Gagne, O.C. (2015) New mineral names. American Mineralogist: 100: 1649-1654.

Internet Links for DebattistiiteHide

Localities for DebattistiiteHide

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.
Switzerland (TL)
 
  • Valais
    • Goms
      • Binn
        • Fäld (Imfeld; Im Feld; Feld)
Guastoni, A., Bindi, L. and Nestola, F. (2012) Debattistiite, IMA 2011- 098. CNMNC Newsletter No. 13, June 2012, page 808; Mineralogical Magazine, 76, 807-817; De Battisti, L. (2013): Debattistiit, Ag9Hg0.5As6S12Te2 – ein neues Tellur-Sulfosalz aus dem Lengenbach. Schweizer Strahler, 47 (4), 29-30.
 
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