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Manganlotharmeyerite

A valid IMA mineral species
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08146810017271929653522.jpg
Manganlotharmeyerite

Jote Mine, Pampa Larga mining district, Tierra Amarilla, Copiapó Province, Atacama, Chile
08944410017271929689593.jpg
Manganlotharmeyerite

Jote Mine, Pampa Larga mining district, Tierra Amarilla, Copiapó Province, Atacama, Chile
06545360017271929747320.jpg
Manganlotharmeyerite

Ojuela Mine, Mapimí, Mapimí Municipality, Durango, Mexico
08146810017271929653522.jpg
Manganlotharmeyerite

Jote Mine, Pampa Larga mining district, Tierra Amarilla, Copiapó Province, Atacama, Chile
08944410017271929689593.jpg
Manganlotharmeyerite

Jote Mine, Pampa Larga mining district, Tierra Amarilla, Copiapó Province, Atacama, Chile
06545360017271929747320.jpg
Manganlotharmeyerite

Ojuela Mine, Mapimí, Mapimí Municipality, Durango, Mexico
08146810017271929653522.jpg
Manganlotharmeyerite

Jote Mine, Pampa Larga mining district, Tierra Amarilla, Copiapó Province, Atacama, Chile
08944410017271929689593.jpg
Manganlotharmeyerite

Jote Mine, Pampa Larga mining district, Tierra Amarilla, Copiapó Province, Atacama, Chile
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About ManganlotharmeyeriteHide

Formula:
CaMn3+2(AsO4)2(OH)2
May contain minor Zn replacing Mn.
Colour:
Brown-red to dark reddish orange
Lustre:
Adamantine
Hardness:
3
Specific Gravity:
3.77
Crystal System:
Monoclinic
Name:
For its relationship with lotharmeyerite and for the presence of manganese.
Visually indistinguishable from lotharmeyerite.


Unique IdentifiersHide

Mindat ID:
11206
Long-form identifier:
mindat:1:1:11206:4

IMA Classification of ManganlotharmeyeriteHide

IMA status:
Approved
Approval year:
2002
First published:
2002

Classification of ManganlotharmeyeriteHide

Strunz-mindat (2025):
8.CG.15

8 : PHOSPHATES, ARSENATES, VANADATES
C : Phosphates without additional anions, with H2O
G : With large and medium-sized cations, RO4:H2O = 1:1

Mineral SymbolsHide

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

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

Physical Properties of ManganlotharmeyeriteHide

Lustre:
Adamantine
Transparency:
Translucent
Colour:
Brown-red to dark reddish orange
Streak:
Light brown
Hardness:
3 on Mohs scale
Hardness Data:
Measured
Tenacity:
Brittle
Cleavage:
Distinct/Good
{001}
Fracture:
Irregular/Uneven
Density:
3.77(2) g/cm3 (Measured)    3.75(2) g/cm3 (Calculated)
Comment:
The uncertainty for the calculated density arises from the compositional range.

Optical Data of ManganlotharmeyeriteHide

Type:
Biaxial (+)
RI values:
nα = 1.785(5) nβ = 1.814(5) nγ = 1.854(5)
2V:
Measured: 85° , Calculated: 82°
Max. Birefringence:
δ = 0.069
Based on recorded range of RI values above.

Interference Colours:
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.

Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.

Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars.

Surface Relief:
Moderate
Dispersion:
r < v, weak.
Optical Extinction:
The orientation of the optical indicatrix is unknown.
Comments:
In the type material, optically homogeneous grains usually do not show crystal faces, and their size does not exceed 100 µm.

Chemistry of ManganlotharmeyeriteHide

Mindat Formula:
CaMn3+2(AsO4)2(OH)2

May contain minor Zn replacing Mn.
Element Weights:
Element% weight
O34.645 %
As32.447 %
Mn23.793 %
Ca8.679 %
H0.437 %

Calculated from ideal end-member formula.
Elements listed:
As, Ca, H, Mn, O - search for minerals with similar chemistry
Common Impurities:
V,Fe,Ni,Co,Zn,Al

Crystallography of ManganlotharmeyeriteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/m
Setting:
C2/m
Cell Parameters:
a = 9.043(1) Å, b = 6.2314(7) Å, c = 7.3889(9) Å
β = 116.399(2)°
Ratio:
a:b:c = 1.451 : 1 : 1.186
Unit Cell V:
327.99 ų
Z:
2
Morphology:
Elongate platy crystals.
Twinning:
Not mentioned in type description.

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0005797ManganlotharmeyeriteBrugger J, Krivovichev S V, Kolitsch U, Meisser N, Andrut M, Ansermet S, Burns P C (2002) Description and crystal structure of manganlotharmeyerite, Ca(Mn,_,Mg)2{AsO4,[AsO2(OH)2]}2(OH,H2O)2, from the Starlera Mn-deposit, Swiss Alps, and a redefinition of lotharmeyerite The Canadian Mineralogist 40 1597-16082002Starlera Mn-deposit, Swiss Alps0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
4.93 Å(80)
4.61 Å(50)
3.426 Å(60)
3.182 Å(100)
3.122 Å(50)
2.927 Å(70)
2.822 Å(70)
2.718 Å(80)
2.555 Å(100)
2.134 Å(70)
Comments:
Starlera mine, Grisons, Switzerland. The data are from the type type description.

Geological EnvironmentHide

Type Occurrence of ManganlotharmeyeriteHide

Type Locality:
ⓘ Starlera Mine, Starlera Valley, Ferrera, Viamala Region, Grisons, Switzerland
General Appearance of Type Material:
Elongate platy crystals and aggregates up to 1 mm in length.
Place of Conservation of Type Material:
Musée géologique cantonal, Lausanne, Switzerland.
Geological Setting of Type Material:
Retrograde metamorphosed Triassic (carbonate-hosted) syngenetic exhalative Mn-ores.
Associated Minerals at Type Locality:
BrauniteCalciteTilasite

Synonyms of ManganlotharmeyeriteHide

Other Language Names for ManganlotharmeyeriteHide

Relationship of Manganlotharmeyerite to other SpeciesHide

Member of:
Tsumcorite Group
Other Members of Tsumcorite Group:
AlumolukrahniteCa[CuAl](AsO4)2(H2O,OH)2Tric. 1 : P1
CabalzariteCaMg2(AsO4)2 · 2H2OMon. 2/m : B2/m
CobaltlotharmeyeriteCaCo2(AsO4)2 · 2H2OMon. 2/m : B2/m
CobalttsumcoritePbCo2(AsO4)2 · 2H2OMon. 2/m : B2/m
FerrilotharmeyeriteCaZnFe3+(AsO4)2(OH) · H2OMon. 2/m : B2/m
GartrellitePbCuFe3+(AsO4)2(OH) · H2OTric. 1 : P1
HelmutwinkleritePbZn2(AsO4)2 · 2H2OTric. 1 : P1
KaliochalciteKCu2(SO4)2[(OH)(H2O)]Mon. 2/m : B2/m
KrettnichitePbMn3+2(VO4)2(OH)2Mon. 2/m : B2/m
LotharmeyeriteCaZn2(AsO4)2 · 2H2OMon. 2/m : B2/m
LukrahniteCaCuFe3+(AsO4)2(OH,H2O)2Tric. 1 : P1
MawbyitePbFe3+2(AsO4)2(OH)2Mon. 2/m : B2/m
MounanaitePbFe3+2(VO4)2(OH)2Mon. 2/m : B2/m
NatrochalciteNaCu2(SO4)2(OH) · 2H2OMon. 2/m : B2/m
NickellotharmeyeriteCaNi2(AsO4)2 · 2H2OMon. 2/m : B2/m
NickelschneebergiteBiNi2(AsO4)2(OH) · H2OMon. 2/m : B2/m
NickeltsumcoritePb(Ni,Fe3+)2(AsO4)2(H2O,OH)2Mon. 2/m : B2/m
PhosphogartrellitePbCuFe3+(PO4)2(OH,H2O)2Tric. 1 : P1
RappolditePbCo2(AsO4)2 · 2H2OTric. 1 : P1
SchneebergiteBiCo2(AsO4)2(OH) · H2OMon. 2/m : B2/m
ThometzekitePbCu2+2(AsO4)2 · 2H2OMon. 2/m : B2/m
TsumcoritePbZn2(AsO4)2 · 2H2OMon. 2/m : B2/m
YancowinnaitePbCuAl(AsO4)2OH · H2O Tric. 1 : P1
ZincgartrellitePbZn2(AsO4)2(H2O,OH)2Tric. 1 : P1

Common AssociatesHide

Associated Minerals Based on Photo Data:
1 photo of Manganlotharmeyerite associated with BrauniteMn2+Mn3+6(SiO4)O8
1 photo of Manganlotharmeyerite associated with ArseniosideriteCa2Fe3+3(AsO4)3O2 · 3H2O

Related Minerals - Strunz-mindat GroupingHide

8.CG.FluckiteCaMn2+(AsO3OH)2 · 2H2OTric. 1 : P1
8.CG.DondoelliteCa2Fe(PO4)2 · 2H2OTric. 1 : P1
8.CG.Ca-HuréauliteCaMn5(PO4)4 · 4H2O
8.CG.AlumolukrahniteCa[CuAl](AsO4)2(H2O,OH)2Tric. 1 : P1
8.CG.05ParabrandtiteCa2Mn2+(AsO4)2 · 2H2OTric. 1 : P1
8.CG.05TalmessiteCa2Mg(AsO4)2 · 2H2OTric. 1 : P1
8.CG.05CollinsiteCa2Mg(PO4)2 · 2H2OTric. 1 : P1
8.CG.05MesseliteCa2Fe2+(PO4)2 · 2H2OTric. 1 : P1
8.CG.05GaititeCa2Zn(AsO4)2 · 2H2OTric. 1 : P1
8.CG.05AnorthoroseliteCa2Co(AsO4)2 · 2H2OTric.
8.CG.05CassidyiteCa2Ni(PO4)2 · 2H2OTric.
8.CG.05FairfielditeCa2Mn2+(PO4)2 · 2H2OTric. 1 : P1
8.CG.05HilliteCa2Zn(PO4)2 · 2H2OTric. 1 : P1
8.CG.05Unnamed (Fe2+-analogue of Parabrandtite)Ca2Fe2+(AsO4)2 · 2H2O
8.CG.10ZincroseliteCa2Zn(AsO4)2 · 2H2OMon. 2/m : P21/b
8.CG.10RoseliteCa2Co(AsO4)2 · 2H2OMon. 2/m : P21/b
8.CG.10RruffiteCa2Cu(AsO4)2 · 2H2OMon. 2/m : P21/b
8.CG.10WendwilsoniteCa2Mg(AsO4)2 · 2H2OMon. 2/m : P21/b
8.CG.10BrandtiteCa2Mn2+(AsO4)2 · 2H2OMon. 2/m : P21/b
8.CG.10Unnamed (Fe2+-analogue of Brandtite)Ca2Fe2+(AsO4)2 · 2H2O
8.CG.15MawbyitePbFe3+2(AsO4)2(OH)2Mon. 2/m : B2/m
8.CG.15ThometzekitePbCu2+2(AsO4)2 · 2H2OMon. 2/m : B2/m
8.CG.15YancowinnaitePbCuAl(AsO4)2OH · H2O Tric. 1 : P1
8.CG.15SchneebergiteBiCo2(AsO4)2(OH) · H2OMon. 2/m : B2/m
8.CG.15CabalzariteCaMg2(AsO4)2 · 2H2OMon. 2/m : B2/m
8.CG.15NickelschneebergiteBiNi2(AsO4)2(OH) · H2OMon. 2/m : B2/m
8.CG.15LotharmeyeriteCaZn2(AsO4)2 · 2H2OMon. 2/m : B2/m
8.CG.15NickeltsumcoritePb(Ni,Fe3+)2(AsO4)2(H2O,OH)2Mon. 2/m : B2/m
8.CG.15MagnesiofluckiteCaMg(AsO3OH)2(H2O)2Tric. 1 : P1
8.CG.15KrettnichitePbMn3+2(VO4)2(OH)2Mon. 2/m : B2/m
8.CG.15CobalttsumcoritePbCo2(AsO4)2 · 2H2OMon. 2/m : B2/m
8.CG.15TsumcoritePbZn2(AsO4)2 · 2H2OMon. 2/m : B2/m
8.CG.15FerrilotharmeyeriteCaZnFe3+(AsO4)2(OH) · H2OMon. 2/m : B2/m
8.CG.15CobaltlotharmeyeriteCaCo2(AsO4)2 · 2H2OMon. 2/m : B2/m
8.CG.15MounanaitePbFe3+2(VO4)2(OH)2Mon. 2/m : B2/m
8.CG.15NickellotharmeyeriteCaNi2(AsO4)2 · 2H2OMon. 2/m : B2/m
8.CG.20LukrahniteCaCuFe3+(AsO4)2(OH,H2O)2Tric. 1 : P1
8.CG.20HelmutwinkleritePbZn2(AsO4)2 · 2H2OTric. 1 : P1
8.CG.20PhosphogartrellitePbCuFe3+(PO4)2(OH,H2O)2Tric. 1 : P1
8.CG.20GartrellitePbCuFe3+(AsO4)2(OH) · H2OTric. 1 : P1
8.CG.20ZincgartrellitePbZn2(AsO4)2(H2O,OH)2Tric. 1 : P1
8.CG.20RappolditePbCo2(AsO4)2 · 2H2OTric. 1 : P1
8.CG.25Pottsite(Pb3xBi4-2x)(VO4)4 · H2O (0.8 < x < 1.0)Tet. 4/m : I41/a
8.CG.25Armellinoite-(Ce)Ca4Ce4+(AsO4)4 · H2OTet. 4/m : I41/a
8.CG.35NickeltalmessiteCa2Ni(AsO4)2 · 2H2OTric. 1 : P1
8.CG.55IrhtemiteCa4Mg(AsO4)2(HAsO4)2 · 4H2OMon.

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 ManganlotharmeyeriteHide

References for ManganlotharmeyeriteHide

Localities for ManganlotharmeyeriteHide

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.
Chile
 
  • Atacama
    • Copiapó Province
      • Tierra Amarilla
        • Pampa Larga mining district
samples analysed by Gerhard Mohn
Mexico
 
  • Durango
    • Mapimí Municipality
      • Mapimí
Moore et al. (2003)
Moore (2008)
North Macedonia
 
  • Kavadarci Municipality
    • Ržanovo
      • Allchar
Đorđević et al. (2021)
Switzerland (TL)
 
  • Grisons
    • Viamala Region
      • Ferrera
        • Starlera Valley
Brugger et al. (2002)
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