Mauriziodiniite
A valid IMA mineral species
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About Mauriziodiniite
Formula:
(NH4)(As2O3)2I
Colour:
Colorless
Lustre:
Adamantine, Pearly
Hardness:
1
Specific Gravity:
3.916 (Calculated)
Crystal System:
Hexagonal
Member of:
Name:
To honour Maurizio Dini of La Serena, Chile (born 1968) an Italian amateur mineralogist who has lived in Chile since 1998.
Type Locality:
Chemically and structurally related to lucabindiite - its chlorine analogue. Unique combination of elements.
The iodine analogue of ermakovite.
The iodine analogue of ermakovite.
Unique Identifiers
Mindat ID:
53869
Long-form identifier:
mindat:1:1:53869:7
GUID
(UUID V4):
(UUID V4):
09c71346-b14f-439a-94e6-22f3a8ac9e93
IMA Classification of Mauriziodiniite
Approved
Approval year:
2019
Classification of Mauriziodiniite
3.DC.05
3 : HALIDES
D : Oxyhalides, hydroxyhalides and related double halides
C : With Pb (As,Sb,Bi), without Cu
3 : HALIDES
D : Oxyhalides, hydroxyhalides and related double halides
C : With Pb (As,Sb,Bi), without Cu
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference |
|---|---|---|
| Mzd | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Mauriziodiniite
Adamantine, Pearly
Transparency:
Transparent
Colour:
Colorless
Streak:
White
Hardness:
1 on Mohs scale
Tenacity:
Sectile
Cleavage:
Perfect
On {001}
On {001}
Fracture:
Irregular/Uneven, Sub-Conchoidal, Step-Like
Density:
3.916 g/cm3 (Calculated)
Optical Data of Mauriziodiniite
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.
and does not take into account mineral colouration.
Surface Relief:
Very High
Comments:
ω calculated
Chemistry of Mauriziodiniite
Mindat Formula:
(NH4)(As2O3)2I
Crystallography of Mauriziodiniite
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 Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 9.35 Å | (29) |
| 4.644 Å | (19) |
| 3.269 Å | (100) |
| 2.644 Å | (71) |
| 2.554 Å | (42) |
| 1.846 Å | (20) |
| 1.623 Å | (27) |
| 1.524 Å | (36) |
Comments:
From Type Description.
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 7: Great Oxidation Event | <2.4 |
| 45a : [Sulfates, arsenates, selenates, antimonates] |
Type Occurrence of Mauriziodiniite
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:
Reference:
Kampf, A. R., Nash, B. P., & Donoso, A. A. M. (2020). Mauriziodiniite, NH 4 (As 2 O 3) 2 I, the ammonium and iodine analogue of lucabindiite from the Torrecillas mine, Iquique Province, Chile. Mineralogical Magazine, 84(2), 267-273.
Synonyms of Mauriziodiniite
Relationship of Mauriziodiniite to other Species
Member of:
Other Members of this group:
| Cuatrocapaite-(K) | K3(NaMg◻)(As2O3)6Cl6 · 16H2O | Trig. 3m (3 2/m) : R3m |
| Cuatrocapaite-(NH₄) | (NH4)3(NaMg◻)(As2O3)6Cl6 · 16H2O | Trig. 3m (3 2/m) : R3m |
| Ermakovite | (NH4)(As2O3)2Br | Hex. 6/mmm (6/m 2/m 2/m) : P6/mmm |
| Gajardoite | KCa0.5As3+4O6Cl2 · 5H2O | Hex. 6/mmm (6/m 2/m 2/m) : P6/mmm |
| Gajardoite-(NH4) | (NH4)As3+4O6Cl2(Ca0.5◻0.5)(H2O)5 | Hex. 6/mmm (6/m 2/m 2/m) : P6/mmm |
| Lucabindiite | (K,NH4)As4O6(Cl,Br) | Hex. 6/mmm (6/m 2/m 2/m) : P6/mmm |
| Russoite | (NH4)ClAs2O3(H2O)0.5 | Hex. 6 2 2 : P6 2 2 |
| Torrecillasite | Na(As,Sb)3+4O6Cl | Orth. |
Related Minerals - Strunz-mindat Grouping
| 3.DC. | Lucabindiite | (K,NH4)As4O6(Cl,Br) |
| 3.DC. | Torrecillasite | Na(As,Sb)3+4O6Cl |
| 3.DC. | Gajardoite | KCa0.5As3+4O6Cl2 · 5H2O |
| 3.DC. | Cuatrocapaite-(NH₄) | (NH4)3(NaMg◻)(As2O3)6Cl6 · 16H2O |
| 3.DC. | Cuatrocapaite-(K) | K3(NaMg◻)(As2O3)6Cl6 · 16H2O |
| 3.DC. | Napoliite | Pb2OFCl |
| 3.DC.05 | Laurionite | PbCl(OH) |
| 3.DC.05 | Paralaurionite | PbCl(OH) |
| 3.DC.05 | Russoite | (NH4)ClAs2O3(H2O)0.5 |
| 3.DC.10 | Fiedlerite | Pb3FCl4(OH) · H2O |
| 3.DC.15 | Penfieldite | Pb2Cl3(OH) |
| 3.DC.15 | Telluroperite | Pb3TeO4Cl2 |
| 3.DC.20 | Laurelite | Pb7F12Cl2 |
| 3.DC.25 | Bismoclite | BiOCl |
| 3.DC.25 | Matlockite | PbFCl |
| 3.DC.25 | Rorisite | CaFCl |
| 3.DC.25 | Zavaritskite | (BiO)F |
| 3.DC.25 | Zhangpeishanite | BaFCl |
| 3.DC.30 | Nadorite | PbSbClO2 |
| 3.DC.30 | Perite | PbBiClO2 |
| 3.DC.40 | Thorikosite | Pb3Cl2(OH)(SbO3,AsO3) |
| 3.DC.45 | Mereheadite | Pb47Cl25(OH)13O24(CO3)(BO3)2 |
| 3.DC.50 | Blixite | Pb8O5(OH)2Cl4 |
| 3.DC.52 | Rumseyite | Pb2OClF |
| 3.DC.55 | Pinalite | Pb3WO5Cl2 |
| 3.DC.55 | Vladkrivovichevite | [Pb32O18][Pb4Mn2O]Cl14(BO3)8 · 2H2O |
| 3.DC.57 | Yeomanite | Pb2O(OH)Cl |
| 3.DC.60 | Lorettoite | Pb7O6Cl2 |
| 3.DC.60 | Symesite | Pb10(SO4)O7Cl4 · H2O |
| 3.DC.62 | Sarawakite (of Frenzel) | Sb, O, Cl (?) |
| 3.DC.65 | Ecdemite | Pb6Cl4(As2O7) |
| 3.DC.70 | Mendipite | Pb3Cl2O2 |
| 3.DC.75 | Damaraite | Pb3Cl(OH)O2 |
| 3.DC.80 | Onoratoite | Sb8Cl2O11 |
| 3.DC.95 | Barstowite | Pb4Cl6(CO3) · H2O |
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 Mauriziodiniite
mindat.org URL:
https://www.mindat.org/min-53869.html
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References for Mauriziodiniite
Reference List:
Miyawaki, Ritsuro, Hatert, Frédéric, Pasero, Marco, Mills, Stuart J. (2019) IMA Commission on New Minerals, Nomenclature and Classification (CNMNC) NEWSLETTER 51. European Journal of Mineralogy, 31 (5-6) 1099-1104 doi:10.1127/ejm/2019/0031-2894
Localities for Mauriziodiniite
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.
Chile (TL) | |
| Miyawaki et al. (2019) +2 other references |
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Torrecillas mine, Iquique Province, Tarapacá, Chile