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Mauriziodiniite

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Formula:
(NH4)(As2O3)2I
Colour:
Colorless
Lustre:
Adamantine, Pearly
Hardness:
1
Specific Gravity:
3.916 (Calculated)
Crystal System:
Hexagonal
Name:
To honour Maurizio Dini of La Serena, Chile (born 1968)an Italian amateur mineralogist who has lived in Chile since 1998.
Chemically and structurally related to lucabindiite - its chlorine analogue. Unique combination of elements.


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Classification of MauriziodiniiteHide

Approved, Pending publication
Approval Year:
2019

Physical Properties of MauriziodiniiteHide

Adamantine, Pearly
Transparency:
Transparent
Colour:
Colorless
Streak:
White
Hardness:
Tenacity:
Sectile
Cleavage:
Perfect
On {001}
Fracture:
Irregular/Uneven, Sub-Conchoidal, Step-Like
Density:
3.916 g/cm3 (Calculated)

Optical Data of MauriziodiniiteHide

Type:
Uniaxial (-)
RI values:
nω = 2.070 nε = 1.770(5)
Max Birefringence:
δ = 0.300
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Very High

Chemical Properties of MauriziodiniiteHide

Formula:
(NH4)(As2O3)2I

Crystallography of MauriziodiniiteHide

Crystal System:
Hexagonal
Class (H-M):
6/mmm (6/m 2/m 2/m) - Dihexagonal Dipyramidal
Space Group:
P6/mmm
Setting:
P6/mmm
Cell Parameters:
a = 5.289(2) Å, c = 9.317(2) Å
Ratio:
a:c = 1 : 1.762
Unit Cell V:
225.68 ų
Z:
1

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
9.35Å(29)
4.644Å(19)
3.269Å(100)
2.644Å(71)
2.554Å(42)
1.846Å(20)
1.623Å(27)
1.524Å(36)
Comments:
From Type Description.

Type Occurrence of MauriziodiniiteHide

General Appearance of Type Material:
Hexagonal tablets up to ~300 μm in diameter
Place of Conservation of Type Material:
Type material is deposited in the mineralogical collections of the Natural History Museum of Los Angeles County, 900 Exposition Boulevard, Los Angeles, CA 90007, USA, catalogue number 67365
Associated Minerals at Type Locality:

Synonyms of MauriziodiniiteHide

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 MauriziodiniiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Kampf, A.R., Nash, B.P. and Molina Donoso, A.A. (2019) Mauriziodiniite, IMA 2019-036. CNMNC Newsletter No. 51. European Journal of Mineralogy: 31. https://doi.org/10.1127/ejm/2019/0031-2894
Kampf, A.R., Nash, B.P. and Molina Donoso, A.A. (2020) Mauriziodiniite, NH4(As2O3)2I, the ammonium and iodine analogue of lucabindiite from the Torrecillas mine, Iquique Province, Chile. Mineralogical Magazine: XX: XXX-XXX.

Internet Links for MauriziodiniiteHide

Localities for MauriziodiniiteHide

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.
Chile (TL)
 
  • Tarapacá
    • Iquique Province
      • Salar Grande
Kampf, A.R., Nash, B.P. and Molina Donoso, A.A. (2019) Mauriziodiniite, IMA 2019-036. CNMNC Newsletter No. 51; European Journal of Mineralogy, 31, https://doi.org/10.1127/ejm/2019/0031-2894
 
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