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Sinoite

A valid IMA mineral species
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About SinoiteHide

Formula:
Si2N2O
Colour:
Colourless
Lustre:
Vitreous
Specific Gravity:
2.80 - 2.85
Crystal System:
Orthorhombic
Name:
The name reflects its composition: silicon (Si), nitrogen (N) and oxygen (O).
This page provides mineralogical data about Sinoite.


Unique IdentifiersHide

Mindat ID:
3676
Long-form identifier:
mindat:1:1:3676:0

Similar NamesHide

CeniteA synonym of Kainite
KinoiteA valid IMA mineral speciesCa2Cu2(H2O)2[Si3O10]
SainitA synonym of Polydymite
SannaiteA rock classification type
SenaiteA valid IMA mineral species - grandfatheredPb(Mn,Y,U)(Fe,Zn)2(Ti,Fe,Cr,V)18(O,OH)38
SuaniteA valid IMA mineral species - grandfatheredMg2[B2O5]
SuenoiteA valid IMA mineral species◻Mn22+Mg5Si8O22(OH)2
SínítA synonym of 'Syenite'
ZoniteA rock subtype

IMA Classification of SinoiteHide

Classification of SinoiteHide

1.DB.10

1 : ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides)
D : Nonmetallic Carbides and Nitrides
B : Nonmetallic nitrides
Dana 7th ed.:
1.3.8.1
1.3.9.1

1 : NATIVE ELEMENTS AND ALLOYS
3 : Semi-metals and non-metals
2.2

2 : Carbides, Nitrides, Silicides and Phosphides

Mineral SymbolsHide

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

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

Physical Properties of SinoiteHide

Vitreous
Transparency:
Transparent
Colour:
Colourless
Density:
2.80 - 2.85 g/cm3 (Measured)    2.84 g/cm3 (Calculated)

Optical Data of SinoiteHide

Type:
Biaxial (-)
RI values:
nα = 1.740 nβ = 1.855 nγ = 1.855
Birefringence:
High; a distinguishing feature in thin section.
Max. Birefringence:
δ = 0.115
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 moderate
Colour in reflected light:
Light gray

Chemistry of SinoiteHide

Mindat Formula:
Si2N2O
Element Weights:
Element% weight
Si56.068 %
N27.962 %
O15.970 %

Calculated from ideal end-member formula.

Crystallography of SinoiteHide

Crystal System:
Orthorhombic
Class (H-M):
mm2 - Pyramidal
Space Group:
Cmc21
Cell Parameters:
a = 8.843(5) Å, b = 5.473(5) Å, c = 4.835(5) Å
Ratio:
a:b:c = 1.616 : 1 : 0.883
Unit Cell V:
234.00 ų (Calculated from Unit Cell)
Z:
4

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0011899SinoiteIdrestedt I, Brosset C (1964) Structure of Si2N2O Acta Chemica Scandinavica 18 1879-18861964synthetic0293
0014335SinoiteBaraton M, Billy M, Labbe J, Quintard P, Roult G (1988) L'Oxynitrure de Silicium : Si2 N2 O II. Evolution Structurale et Endommagement par Irradiation aux Neutrons Rapides _cod_database_code 1001786 Materials Research Bulletin 23 1087-109919880293
0014334SinoiteBaraton M, Billy M, Labbe J, Quintard P, Roult G (1988) L'Oxynitrure de Silicium : Si2 N2 O II. Evolution Structurale et Endommagement par Irradiation aux Neutrons Rapides _cod_database_code 1001785 Materials Research Bulletin 23 1087-109919880293
0014289SinoiteBilly M, Labbe J, Selvaraj A, Roult G (1980) Modifications structurales de l'oxynitrure de silicium sous contraintes thermiques _cod_database_code 1001781 Materials Research Bulletin 15 1207-121319800293
0014288SinoiteBilly M, Labbe J, Selvaraj A, Roult G (1980) Modifications structurales de l'oxynitrure de silicium sous contraintes thermiques _cod_database_code 1001780 Materials Research Bulletin 15 1207-121319800293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
4.43 Å(10)
3.36 Å(10)
4.66 Å(8)
2.61 Å(5)
2.42 Å(5)
2.39 Å(4)
4.13 Å(3)

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 1: Primary nebular phases4.567-4.561
4 : Primary chondrule phases4.566–4.561
Stage 2: Planetesimal differentiation and alteration4.566-4.550
5 : Primary asteroid phases4.566–4.560

Type Occurrence of SinoiteHide

General Appearance of Type Material:
Irregular grains and occasional lath-like crystals up to 0.2 mm long, the individual grains frequently being aggregated into larger patches.
Place of Conservation of Type Material:
American Museum of Natural History, New York, New York, USA, 3954.
Geological Setting of Type Material:
Enstatite chondrite meteorite.
Associated Minerals at Type Locality:

Other Language Names for SinoiteHide

Dutch:Sinoiet
German:Sinoit
Russian:Синоит
Simplified Chinese:氮氧硅石
Spanish:Sinoita

Common AssociatesHide

Associations Based on Photo Data:
1 photo of Sinoite associated with QuartzSiO2
1 photo of Sinoite associated with EnstatiteMg2Si2O6
1 photo of Sinoite associated with Buseckite(Fe,Zn,Mn)S
1 photo of Sinoite associated with Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8

Related Minerals - Strunz-mindat GroupingHide

1.DB.05NieriteSi3N4Trig. 3m : P3 1c

Other InformationHide

Notes:
Bright greenish yellow cathodoluminescence.
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 SinoiteHide

References for SinoiteHide

Reference List:

Localities for SinoiteHide

Showing 12 localities.

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.
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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.
Antarctica
 
  • East Antarctica
    • Buckley Island quadrangle
      • Lewis Cliff
Meteorological Bulletin
    • Victoria Land
      • Elephant Moraine
FOGEL (1997)
Australia
 
  • Western Australia
    • Coolgardie Shire
      • Kambalda
Buseck et al. (1972)
Belarus
 
  • Mogilev Region
    • Babruysk District
Levitskiy et al. (2018, July)
Estonia
 
  • Viljandi County
    • Pillistfer (Pilistvere)
KEIL et al. (1965) +2 other references
Finland
 
  • Satakunta
    • Huittinen
KEIL et al. (1965) +1 other reference
Germany
 
  • Bavaria
    • Swabia
      • Ostallgäu District
        • Schwangau
Russell et al. (2003) +1 other reference
Pakistan (TL)
 
  • Sindh Province
    • Khairpur District
Andersen et al. (1964) +1 other reference
Poland
 
  • Lublin Voivodeship
    • Zamość County
Przylibski et al. (2005) +2 other references
Sudan
 
  • River Nile
El Goresy et al. (2012) +1 other reference
Tanzania
 
  • Manyara Region
    • Babati District
KEIL et al. (1965)
USA
 
  • Nebraska
    • Cass County
      • Eagle
Mészárosová (2018)
 
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