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Manganoquadratite

A valid IMA mineral species
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About ManganoquadratiteHide

Formula:
AgMnAsS3
Colour:
Dark gray
Lustre:
Metallic
Hardness:
2 - 2½
Specific Gravity:
4.680 (Calculated)
Crystal System:
Tetragonal
Name:
For the relation to quadratite.
The Mn analogue of quadratite.


Unique IdentifiersHide

Mindat ID:
41604
Long-form identifier:
mindat:1:1:41604:9
GUID
(UUID V4):
4766a85e-16ab-44e2-b43f-d3bfa4fa5c80

IMA Classification of ManganoquadratiteHide

Classification of ManganoquadratiteHide

2.GC.25

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
G : Sulfarsenites, sulfantimonites, sulfbismuthites
C : Poly-sulfarsenites
3.4.12.4

3 : SULFOSALTS
4 : ø = 3

Mineral SymbolsHide

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

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

Physical Properties of ManganoquadratiteHide

Metallic
Transparency:
Opaque
Colour:
Dark gray
Streak:
reddish-brown
Hardness:
2 - 2½ on Mohs scale
Hardness:
VHN10=75 - 96 kg/mm2 - Vickers
Tenacity:
Brittle
Cleavage:
Perfect
None observed in type material, pseudocubic cleavage noted by Sejkora (2011.
Density:
4.680 g/cm3 (Calculated)
Comment:
Based on empirical formula

Optical Data of ManganoquadratiteHide

Anisotropism:
Without characteristic rotation tints
Bireflectance:
Moderate
Reflectivity:
WavelengthR1R2
471.1nm29.5% 31.8%
548.3nm28.1% 30.5%
586.6nm27.3% 29.3%
652.3nm26.0% 28.2%

Reflectance graph
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 31.8%.
R1 shown in black, R2 shown in red
Internal Reflections:
None
Pleochroism:
Weak
Comments:
Very weak, dark gray to blue gray

Chemistry of ManganoquadratiteHide

Mindat Formula:
AgMnAsS3

Crystallography of ManganoquadratiteHide

Crystal System:
Tetragonal
Class (H-M):
4 2 2 - Trapezohedral
Space Group:
P43 2 2
Cell Parameters:
a = 5.4496(5) Å, c = 32.949(1) Å
Ratio:
a:c = 1 : 6.046
Unit Cell V:
978.5 ų
Z:
8
Twinning:
None observed

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0019063ManganoquadratiteBonazzi P, Keutsch F N, Bindi L (2012) Manganoquadratite, AgMnAsS3, a new manganese-bearing sulfosalt from the Uchucchacua polymetallic deposit, Lima Department, Peru: Description and crystal structure American Mineralogist 97 1199-12052012Uchucchacua polymetallic deposit, Lima Department, Peru0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.154 Å(77)
2.746 Å(52)
2.725 Å(100)
2.716 Å(13)
1.934 Å(53)
1.927 Å(27)
1.644 Å(28)
1.577 Å(21)

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
High-𝑇 alteration and/or metamorphism
33 : Minerals deposited by hydrothermal metal-rich fluids (see also [#12])

Type Occurrence of ManganoquadratiteHide

General Appearance of Type Material:
dark gray, anhedral to subhedral grains up 0.5 mm across
Place of Conservation of Type Material:
Museo di Storia Naturale, Sezione di Mineralogia e Litologia, Universita` di Firenze, Firenze, Italy, catalogue number 3108/I
Associated Minerals at Type Locality:
Reference:
Bonazzi, P., Bindi, L., Keutsch, F.N. (2012) Manganoquadratite, AgMnAsS3, a new manganese-bearing sulfosalt from the Uchucchacua polymetallic deposit, Lima Department, Peru: Description and crystal structure. American Mineralogist: 97: 1199-1205.

Synonyms of ManganoquadratiteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
3 photos of Manganoquadratite associated with AlabanditeMnS
2 photos of Manganoquadratite associated with KeutschiteCu2AgAsS4
2 photos of Manganoquadratite associated with CalciteCaCO3
2 photos of Manganoquadratite associated with QuartzSiO2
1 photo of Manganoquadratite associated with Bournonite-Seligmannite Series
1 photo of Manganoquadratite associated with Tennantite-Tetrahedrite Series

Related Minerals - Strunz-mindat GroupingHide

2.GC.ClogauitePbBi4Te4S3Trig. 3m (3 2/m) : P3m1
2.GC.05HatchiteAgTlPbAs2S5Tric. 1 : P1
2.GC.05Wallisite(Cu,Ag)TlPbAs2S5Tric. 1 : P1
2.GC.10SinneriteCu6As4S9Tric. 1 : P1
2.GC.15WatanabeiteCu4(As,Sb)2S5Orth.
2.GC.20SimoniteTlHgAs3S6Mon. 2/m
2.GC.25QuadratiteAg(Cd,Pb)AsS3Tet. 4 2 2 : P43 2 2
2.GC.30SmithiteAgAsS2Mon. 2/m
2.GC.35TrechmanniteAgAsS2Trig. 3 : R3
2.GC.35DebattistiiteAg9Hg0.5As6S12Te2 Tric. 1 : P1
2.GC.40aAleksitePbBi2Te2S2Trig. 3m (3 2/m) : P3 1m
2.GC.40bKochkaritePbBi4Te7Trig.
2.GC.40cPoubaitePbBi2(Se,Te,S)4Trig. 3m (3 2/m) : R3m
2.GC.40cRucklidgeitePbBi2Te4Trig. 3m (3 2/m) : R3m
2.GC.40eBabkinitePb2Bi2(S,Se)3Trig.
2.GC.40dSaddlebackitePb2Bi2Te2S3Hex.
2.GC.45TvalchrelidzeiteHg3SbAsS3Mon. 2/m
2.GC.50MutnovskitePb4As2S6IClOrth. mmm (2/m 2/m 2/m) : Pnma

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.

Internet Links for ManganoquadratiteHide

References for ManganoquadratiteHide

Localities for ManganoquadratiteHide

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.
Peru (TL)
 
  • Lima
    • Oyón Province
      • Oyón District
Romania
 
  • Hunedoara County
    • Certeju de Sus
Russia
 
  • Sverdlovsk Oblast
    • Serovsky District
      • Turya river
        • Tur'insk
 
Mineral and/or Locality  
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