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Marsturite

A valid IMA mineral species
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04845150014976725119885.jpg
Marsturite

Molinello Mine, Ne, Genoa, Liguria, Italy
04609850014981776104012.jpg
Marsturite

Molinello Mine, Ne, Genoa, Liguria, Italy
04610100017067290828568.jpg
Marsturite

Molinello Mine, Ne, Genoa, Liguria, Italy
03164490014950920652026.jpg
Marsturite

Molinello Mine, Ne, Genoa, Liguria, Italy
00647560014962588047197.jpg
Marsturite

Molinello Mine, Ne, Genoa, Liguria, Italy
01338520014951975701122.jpg
Marsturite

Molinello Mine, Ne, Genoa, Liguria, Italy
04845150014976725119885.jpg
Marsturite

Molinello Mine, Ne, Genoa, Liguria, Italy
04609850014981776104012.jpg
Marsturite

Molinello Mine, Ne, Genoa, Liguria, Italy
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About MarsturiteHide

Formula:
NaCaMn3Si5O14(OH)
Colour:
Tan, white to very light pink
Hardness:
6
Specific Gravity:
3.46
Crystal System:
Triclinic
Name:
Named in 1978 by Donald Peacor and Pete Dunn in honor of Marion Butler Stuart [December 21, 1921 - July 26, 2000 Hailey, Idaho, USA], of Bellevue, Idaho, USA, amateur mineral collector and benefactor of mineralogical projects.
Isostructural with:
Nambulite
The Na analogue of Lithiomarsturite.


Unique IdentifiersHide

Mindat ID:
2581
Long-form identifier:
mindat:1:1:2581:8
GUID
(UUID V4):
5b158d83-b1aa-4ca1-9377-daa9f72993ec

IMA Classification of MarsturiteHide

Classification of MarsturiteHide

Strunz-mindat (2024):
9.DK.05

9 : SILICATES (Germanates)
D : Inosilicates
K : Inosilicates with 5-periodic single chains
Dana 8th ed.:
65.4.1.6

65 : INOSILICATES Single-Width,Unbranched Chains,(W=1)
4 : Single-Width Unbranched Chains, W=1 with chains P=5
Hey's CIM Ref.:
14.18.29

14 : Silicates not Containing Aluminum
18 : Silicates of Mn and Na, K, Mg, Ca or Fe

Mineral SymbolsHide

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

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

Physical Properties of MarsturiteHide

Transparency:
Transparent, Translucent
Colour:
Tan, white to very light pink
Hardness:
6 on Mohs scale
Cleavage:
Imperfect/Fair
{100} and {001}
Density:
3.46 g/cm3 (Measured)    3.465 g/cm3 (Calculated)

Optical Data of MarsturiteHide

Type:
Biaxial (+)
RI values:
nα = 1.686(2) nβ = 1.691(1) nγ = 1.708(1)
2V:
Measured: 60° (1), Calculated: 58°
Max Birefringence:
δ = 0.022
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
High
Dispersion:
r > v weak

Chemistry of MarsturiteHide

Mindat Formula:
NaCaMn3Si5O14(OH)
Elements listed:
Ca, H, Mn, Na, O, Si - search for minerals with similar chemistry
Common Impurities:
Fe,Mg

Crystallography of MarsturiteHide

Crystal System:
Triclinic
Class (H-M):
1 - Pinacoidal
Space Group:
P1
Cell Parameters:
a = 7.70 Å, b = 12.03 Å, c = 6.78 Å
α = 85.26°, β = 94.1°, γ = 111.04°
Ratio:
a:b:c = 0.64 : 1 : 0.564
Unit Cell V:
583.57 ų (Calculated from Unit Cell)
Comment:
Nagashima et al. (2014) give 7.697(2), 11.720(2), 6.771(1) Å, 92.40(3), 94.41(3), 106.83(3), V = 581.9(6) Å3 for a sample from the Molinello mine.

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0020225MarsturiteNagashima M, Armbruster T, Kolitsch U, Pettke T (2014) The relation between Li <-> Na substitution and hydrogen bonding in five-periodic single-chain silicates nambulite and marsturite: A single-crystal X-ray study American Mineralogist 99 1462-14702014Molinello mine, Liguria, Italy0293
CIF Raw Data - click here to close

Epitaxial Relationships of MarsturiteHide

Epitaxial Minerals:
RhodoniteCaMn3Mn[Si5O15]
Epitaxy Comments:
Marsturite very frequently occurs grown epitaxially on bladed rhodonite crystals (Franklin, NJ).

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
High-𝑇 alteration and/or metamorphism
32 : Ba/Mn/Pb/Zn deposits, including metamorphic deposits
Stage 4b: Highly evolved igneous rocks>3.0
34 : Complex granite pegmatites

Type Occurrence of MarsturiteHide

Type Locality:
ⓘ Franklin Mine, Franklin, Sussex County, New Jersey, USA
General Appearance of Type Material:
euhedral, prismatic crystals up to 0.5 mm in size
Place of Conservation of Type Material:
National Museum of Natural History, Smithsonian Institution, under catalog #127923
Geological Setting of Type Material:
As a secondary mineral in cavities in fractures traversing massive -franklinite-willemite-zincite ore in a Precambrian Zn-Mn-Fe orebody hosted in the Franklin marble.
Associated Minerals at Type Locality:
WillemiteRhodoniteAxinite-(Mn)
Reference:
Peacor, D. R., Dunn, P. J., & Sturman, B. D. (1978). Marsturite, Mn 3 CaNaHSi 5 O 15, a new mineral of the nambulite group from Franklin, New Jersey. American Mineralogist, 63(11-12), 1187-1189.

Synonyms of MarsturiteHide

Other Language Names for MarsturiteHide

German:Marsturit
Spanish:Marsturita

Common AssociatesHide

Associated Minerals Based on Photo Data:
14 photos of Marsturite associated with RhodoniteCaMn3Mn[Si5O15]
10 photos of Marsturite associated with Axinite-(Mn)Ca2Mn2+Al2BSi4O15(OH)
6 photos of Marsturite associated with Ganophyllite(K,Na,Ca)2Mn8(Si,Al)12(O,OH)32 · 8H2O
5 photos of Marsturite associated with CahniteCa2[B(OH)4](AsO4)
5 photos of Marsturite associated with WillemiteZn2SiO4
1 photo of Marsturite associated with RhodochrositeMnCO3

Related Minerals - Strunz-mindat GroupingHide

9.DK.FerrorhodoniteCaMn3Fe[Si5O15]Tric. 1 : P1
9.DK.VittinkiiteMnMn3Mn[Si5O15]Tric. 1 : P1
9.DK.Ferri-hellandite-(Ce)(Ca3Ce)Ce2Fe3+◻2B4Si4O22(OH)2Mon. 2/m : P2/b
9.DK.ShijiangshanitePb3CaAl(Si5O14)(OH)3 · 3H2OTrig. 3m : R3c
9.DK.05Allagite
9.DK.05BabingtoniteCa2(Fe,Mn)FeSi5O14(OH)Tric. 1 : P1
9.DK.05LithiomarsturiteLiCaMn3Si5O14(OH)Tric. 1 : P1
9.DK.05ManganbabingtoniteCa2(Mn,Fe)FeSi5O14(OH)Tric. 1 : P1
9.DK.05NambuliteLiMn2+4Si5O14(OH)Tric.
9.DK.05Natronambulite(Na,Li)(Mn,Ca)4Si5O14OHTric.
9.DK.05RhodoniteCaMn3Mn[Si5O15]Tric. 1
9.DK.05ScandiobabingtoniteCa2(Fe2+,Mn)ScSi5O14(OH)Tric.
9.DK.10SantaclaraiteCaMn4[Si5O14OH](OH) · H2OTric. 1 : P1
9.DK.15SaneroiteNaMn2+5[Si5O14(OH)](VO3)(OH)Tric. 1 : P1
9.DK.20Hellandite-(Y)(Ca,REE)4Y2Al◻2(B4Si4O22) (OH)2Mon. 2/m : P2/b
9.DK.20Tadzhikite-(Ce)Ca4Ce3+2Ti◻2(B4Si4O22)(OH)2Mon. 2/m : P2/b
9.DK.20Hellandite-(Yb)(Ca,Y)4(Yb,Y)2(Al,Fe3+,Ti4+)(Be,Li)2[B4Si4O22](O,F,OH)2
9.DK.20Mottanaite-(Ce)Ca4(Ce,REE)Σ2Al(Be1.5◻0.5)Σ2[B4Si4O22]O2Mon. 2/m
9.DK.20CiprianiiteCa4[(Th,U),Ca]Σ2Al(Be0.5◻1.5)Σ2[B4Si4O22](OH)2Mon. 2/m : P2/b
9.DK.20Hellandite-(Ce)(Ca,REE)4Ce2Al◻2(B4Si4O22) (OH)2Mon. 2/m
9.DK.20Ferri-mottanaite-(Ce) Ca4Ce2Fe3+(Be1.5◻0.5)[Si4B4O22]O2Mon. 2/m : P2/b

Fluorescence of MarsturiteHide

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 MarsturiteHide

References for MarsturiteHide

Localities for MarsturiteHide

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.
India
 
  • West Bengal
    • Purulia District
Chakrabarty et al. (2018)
Italy
 
  • Liguria
    • Genoa
      • Ne
Mineralogical Record 32: 356 +4 other references
        • Statale
Hans van t Zelfde +1 other reference
    • La Spezia Province
      • Borghetto di Vara
Balestra et al. (2020)
Japan
 
  • Gifu Prefecture
    • Motosu City
      • Neo area
Matsubara et al (1990)
  • Tokyo Metropolis
    • Nishitama district
      • Okutama-cho
www.issp.u-tokyo.ac.jp (n.d.) +4 other references
Russia
 
  • Chelyabinsk Oblast
    • Verkhneuralsky District
Aupova et al. (2001)
  • Murmansk Oblast
Joan Rosell-rosellminerals
Spain
 
  • Canary Islands
    • Santa Cruz de Tenerife Province
      • Tenerife
Dill et al. (2023)
USA (TL)
 
  • New Jersey
    • Sussex County
      • Franklin
Peacor et al. (1978) +2 other references
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