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Schizolite

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About SchizoliteHide

Formula:
NaCaMnSi3O8(OH)
Colour:
Light pink to deep pink, orange-pink
Lustre:
Vitreous, Sub-Vitreous
Crystal System:
Triclinic
Name:
Named for the greek 'σϗιζω' for its perfect cleavage.
An ordered (CaMn) intermediate member of the Pectolite-Sérandite Series.

Reported as a new mineral from Greenland in 1900.

The first specimens from Wessels Mine were thought to be bustamite.

Name reverted from marshallsussmanite to schizolite within the April-May 2018 CNMNC newsletter. See IMA approval history for more information.


Classification of SchizoliteHide

Approved
Notes:
Renamed by the IMA
Approval Year:
2013
Approval History:
Was originally proposed as a mineral (schizolite) in 1900.
Discredited as a variety of pectolite in 1955, prior to the formation of the IMA
Approved as marshallsussmanite in 2013.
This name discredited and reverted to schizolite in 2018.

Physical Properties of SchizoliteHide

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

Chemical Properties of SchizoliteHide

Formula:
NaCaMnSi3O8(OH)

Crystallography of SchizoliteHide

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 SchizoliteHide

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 SchizoliteHide

Relationship of Schizolite 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. 1
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 Schizolite associated with Aegirine on mindat.org.
Hydroxyapophyllite-(K)3 photos of Schizolite associated with Hydroxyapophyllite-(K) on mindat.org.
Calcite2 photos of Schizolite 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 SchizoliteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Winther, C (1900) Medd. om Grønland, 24, 196.
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.
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 SchizoliteHide

Localities for SchizoliteHide

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"]
Denmark
 
  • 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"]
          • Tunulliarfik Fjord (Tunugdliarfik)
Winthr, C. (1901). Schizolite, a new mineral. Medd. om Grφnland, 24, 196-203.
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
 
  • Murmansk Oblast
    • Khibiny Massif
Dmitriy lLisitsin analysis.
South Africa
 
  • Northern Cape
    • 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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