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Marshallsussmanite

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Marshall Sussmann
Formula:
NaCaMnSi3O8(OH)
Colour:
Light pink to deep pink, orange-pink
Lustre:
Vitreous, Sub-Vitreous
Crystal System:
Triclinic
Name:
Named in 2013 in honor of Marshall Sussman, USA mineral collector who specializes in South African and Namibian minerals.
An ordered (CaMn) intermediate member of the Pectolite-Sérandite Series.

The first specimens were thought to be bustamite.
Some "schizolite" is in fact marshallsussmanite.


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Classification of MarshallsussmaniteHide

Approved
Approval Year:
2013

Physical Properties of MarshallsussmaniteHide

Vitreous, Sub-Vitreous
Transparency:
Transparent, Translucent
Colour:
Light pink to deep pink, orange-pink

Chemical Properties of MarshallsussmaniteHide

Formula:
NaCaMnSi3O8(OH)

Crystallography of MarshallsussmaniteHide

Crystal System:
Triclinic
Class (H-M):
1 - Pinacoidal
Space Group:
P1
Setting:
P1
Cell Parameters:
a = 7.7834(4) Å, b = 6.9373(4) Å, c = 6.8496(3) Å
α = 90.680(3)°, β = 94.329(3)°, γ = 102.854(3)°
Ratio:
a:b:c = 1.122 : 1 : 0.987
Unit Cell V:
359.40 ų (Calculated from Unit Cell)

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.227(45)
3.104(15)
3.041(100)
2.868(20)
2.657(15)
2.534(20)
2.202(25)
1.715(15)

Type Occurrence of MarshallsussmaniteHide

General Appearance of Type Material:
Pink blocky to somewhat bladed crystals.
Geological Setting of Type Material:
Manganese ore deposit
Associated Minerals at Type Locality:

Synonyms of MarshallsussmaniteHide

Other Language Names for MarshallsussmaniteHide

Relationship of Marshallsussmanite to other SpeciesHide

Other Members of this group:
Barrydawsonite-(Y)Na1.5Y0.5CaSi3O9HMon. 2/m : P21/b
BustamiteCaMn2+(Si2O6)Tric. 1 : P1
CascanditeCa(Sc,Fe3+)(HSi3O9)Tric.
FerrobustamiteCaFe2+(Si2O6)Tric.
MurakamiiteCa2LiSi3O8(OH)Tric. 1 : P1
PectoliteNaCa2Si3O8(OH)Tric. 1 : P1
SeranditeNaMn2+2Si3O8(OH)Tric. 1 : P1
TanohataiteLiMn2(HSi3O9)Tric. 1 : P1
VistepiteSnMn4B2Si4O16(OH)2Tric. 1
WollastoniteCaSiO3Tric. 1 : P1

Common AssociatesHide

Associated Minerals Based on Photo Data:
Aegirine12 photos of Marshallsussmanite associated with Aegirine on mindat.org.
Hydroxyapophyllite-(K)3 photos of Marshallsussmanite associated with Hydroxyapophyllite-(K) on mindat.org.
Calcite2 photos of Marshallsussmanite associated with Calcite on mindat.org.

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 MarshallsussmaniteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Origlieri, M.J., Downs, R.T and Yang, H. (2013) Marshallsussmanite, IMA 2013-067. CNMNC Newsletter No. 18,December 2013, page 3256; Mineralogical Magazine, 77, 3249-3258.
Pohwat, P.W. (2014): Connoisseur's Choice: Marshallsussmanite, Wessels mine, Kalahari Manganese Field, Northern Cape Province, South Africa. Rocks & Minerals, 89(3), 258-260.

Internet Links for MarshallsussmaniteHide

Localities for MarshallsussmaniteHide

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.
Australia
 
  • Queensland
    • Somerset Region
Carr, G.R., Phillips, E.R. & Williams, P.R. (1976): An occurrence of eudialyte and manganoan pectolite in a phonolite dyke from south-eastern Queensland. Mineralogical Magazine 40, 853-856. [as "manganoan pectolite"]
Greenland
 
  • Kujalleq
    • Narsaq
      • Ilímaussaq complex
Ohashi, Y. & Finger, L. W. (1978): The role of octahedral cations in pyroxenoid crystal chemistry. I. Bustamite, wollastonite, and the pectolite-schizolite-serandite series. American Mineralogist 63, 274-288. [as "schizolite"]
Namibia
 
  • Khomas Region
    • Windhoek District
      • Aris
Blaß, G., Kolitsch, U., Tremmel, G., Esche, J. (2016): Neue Mineralienfunde aus den Phonolithbrüchen von Aris in Namibia. Mineralien-Welt 27 (4), 48-60 (in German); Kolitsch, U., Blaß, G., Jahn, S., Cámara, F., von Bezing, L., Wartha, R. R., Tremmel, G., Sturla, M., Cerea, P., Skebo, M. and Ciriotti, M. E. (2016): Aris - mineralogy of the famous alkaline phonolite. AMI - Associazione Micromineralogica Italiana, Cremona, Italy, 95 pp.
Russia
 
  • Northern Region
    • Murmanskaya Oblast'
      • Khibiny Massif
Dmitriy lLisitsin analysis.
South Africa (TL)
 
  • Northern Cape Province
    • Kalahari manganese field
      • Hotazel
Cairncross, B., and Beukes, N. J., (2013) The Kalahari Manganese Field, the adventure continues. Struik Nature Publishers, Cape Town, South Africa; Origlieri, M.J., Downs, R.T and Yang, H. (2013) Marshallsussmanite, IMA 2013-067. CNMNC Newsletter No. 18,December 2013, page 3256; Mineralogical Magazine, 77, 3249-3258
      • Kuruman
        • N'Chwaning Mines
Cairncross, B. and Beukes, N. J., (2013) The Kalahari Manganese Field, the adventure continues. Struik Nature Publishers, Cape Town, South Africa.
Mineral and/or Locality  
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