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Dalnegorskite

A valid IMA mineral species
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01933340015537795703805.jpg
Dalnegorskite, etc.

Bor Pit, Dal'negorsk B deposit, Dalnegorsk, Dalnegorsk Urban District, Primorsky Krai, Russia
02137300015537788546419.jpg
Dalnegorskite, etc.

Bor Pit, Dal'negorsk B deposit, Dalnegorsk, Dalnegorsk Urban District, Primorsky Krai, Russia
09490500015900510974724.jpg
Dalnegorskite

Bor Pit, Dal'negorsk B deposit, Dalnegorsk, Dalnegorsk Urban District, Primorsky Krai, Russia
01933340015537795703805.jpg
Dalnegorskite, etc.

Bor Pit, Dal'negorsk B deposit, Dalnegorsk, Dalnegorsk Urban District, Primorsky Krai, Russia
05431990015537783769542.jpg
Dalnegorskite, etc.

Bor Pit, Dal'negorsk B deposit, Dalnegorsk, Dalnegorsk Urban District, Primorsky Krai, Russia
09120910015900496454876.jpg
Dalnegorskite

Bor Pit, Dal'negorsk B deposit, Dalnegorsk, Dalnegorsk Urban District, Primorsky Krai, Russia
01933340015537795703805.jpg
Dalnegorskite, etc.

Bor Pit, Dal'negorsk B deposit, Dalnegorsk, Dalnegorsk Urban District, Primorsky Krai, Russia
02137300015537788546419.jpg
Dalnegorskite, etc.

Bor Pit, Dal'negorsk B deposit, Dalnegorsk, Dalnegorsk Urban District, Primorsky Krai, Russia
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About DalnegorskiteHide

03615230014954759824547.jpg
Bor Pit (Boron Pit; Bor Quarry) 1993

Bor Pit, Dal'negorsk B deposit, Dalnegorsk, Dalnegorsk Urban District, Primorsky Krai, Russia
Formula:
Ca5Mn(Si3O9)2
Colour:
Beige, pinkish-white and milky-white
Hardness:
6
Specific Gravity:
3.02
Crystal System:
Triclinic
Name:
Named after the Dalnegorsk borosilicate deposit located in the city of Dalnegorsk, in the Russian Far East.
Isostructural with:
Ferrobustamite
A pyroxenoid closely related to bustamite.
Forms a continuous solid-solution series with ferrobustamite.

It is found as a rock-forming mineral in the boron-bearing calcareous skarns of the Dalnegorskoe boron-silicate deposit, Russia.

Originally (in the 1940) thought to be wollastonite, Shchipalkina et al. (2019) write, "It should be noted that in the samples of a fairly representative collection of Dalnegorsk “datolite-wollastonite” skarns that we studied, wollastonite itself was not established."


Unique IdentifiersHide

Mindat ID:
52916
Long-form identifier:
mindat:1:1:52916:7
GUID
(UUID V4):
1c84a89b-c0e0-47ee-9e4e-16288662c299

IMA Classification of DalnegorskiteHide

Classification of DalnegorskiteHide

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

9 : SILICATES (Germanates)
D : Inosilicates
G : Inosilicates with 3-periodic single and multiple chains

Mineral SymbolsHide

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

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

Physical Properties of DalnegorskiteHide

Colour:
Beige, pinkish-white and milky-white
Hardness:
6 on Mohs scale
Cleavage:
Perfect
Probably parallel to (100)
Density:
3.02(2) g/cm3 (Measured)    3.035 g/cm3 (Calculated)

Optical Data of DalnegorskiteHide

Type:
Biaxial (-)
RI values:
nα = 1.640(3) nβ = 1.647(3) nγ = 1.650(3)
2V:
Measured: 75° (10), Calculated: 66°
Max Birefringence:
δ = 0.010
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Pleochroism:
Non-pleochroic

Chemistry of DalnegorskiteHide

Mindat Formula:
Ca5Mn(Si3O9)2
Elements listed:
Ca, Mn, O, Si - search for minerals with similar chemistry

Crystallography of DalnegorskiteHide

Crystal System:
Triclinic
Class (H-M):
1 - Pedial
Space Group:
P1
Setting:
P1
Cell Parameters:
a = 7.259(1) Å, b = 7.857(1) Å, c = 7.8765(6) Å
α = 88.55(1)°, β = 62.58(1)°, γ = 76.621(6)°
Ratio:
a:b:c = 0.924 : 1 : 1.002
Unit Cell V:
386.22 ų (Calculated from Unit Cell)
Z:
1

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.284 Å(41)
2.952 Å(100)
2.951 Å(70)
2.280 Å(45)
1.815 Å(92)
1.740 Å(39)
1.708 Å(34)
1.465 Å(39)

Geological EnvironmentHide

Type Occurrence of DalnegorskiteHide

Type Locality:
ⓘ Bor Pit, Dal'negorsk B deposit, Dalnegorsk, Dalnegorsk Urban District, Primorsky Krai, Russia
General Appearance of Type Material:
As thinly-radiated banded beige, pinkish-white and milky-white aggregates typically consisting of split thin acicular to fiber-like individuals.
Place of Conservation of Type Material:
Collections of the Fersman Mineralogical Museum, Russian Academy of Sciences, Leninsky Prospekt 18-2, 119071 Moscow, Russia, registration number 5184/1
Empirical Formula of Type Material:
Ca5.03Mn0.51Fe0.36Mg0.04Si6.03O18
Chemical Analysis of Type Material:
MgO0.23 %
CaO40.02 %
MnO5.02 %
FeO3.64 %
SiO250.65 %
Total:99.56 %
Geological Setting of Type Material:
Boron-bearing calcareous skarns
Associated Minerals at Type Locality:
SphaleritePyrrhotiteHedenbergiteGalenaDatolite
Andradite
Reference:
Shchipalkina, N.V., Pekov, I.V., Ksenofontov, D.A., Chukanov, N.V., Belakovskiy, D.I., Koshlyakova, N.N. (2019): Dalnegorskite, Ca5Mn(Si3O9)2, a new pyroxenoid of the bustamite structure type, a rock-forming mineral of calcic skarns of the Dalnegorskoe boron deposit (Primorskiy kray, Russia). Zapiski RMO, 148(2): 61-75

Synonyms of DalnegorskiteHide

Relationship of Dalnegorskite to other SpeciesHide

Member of:
Wollastonite Group
Other Members of this group:
Barrydawsonite-(Y)Na1.5Y0.5CaSi3O8(OH)Mon. 2/m : P21/b
BustamiteCaMn2+(Si2O6)Tric. 1 : P1
CascanditeCaScSi3O8(OH)Tric. 1
FerrobustamiteCaFe2+(Si2O6)Tric. 1
MendigiteMn2Mn2MnCa(Si3O9)2Tric. 1 : P1
MurakamiiteLiCa2Si3O8(OH)Tric. 1 : P1
PectoliteNaCa2Si3O8(OH)Tric. 1 : P1
SchizoliteNaCaMnSi3O8(OH)Tric. 1 : P1
SeranditeNaMn2+2Si3O8(OH)Tric. 1 : P1
TanohataiteLiMn2Si3O8(OH)Tric. 1 : P1
VistepiteSnMn4B2Si4O16(OH)2Tric. 1 : P1
WollastoniteCa3(Si3O9)Tric. 1 : P1

Common AssociatesHide

Associated Minerals Based on Photo Data:
5 photos of Dalnegorskite associated with HedenbergiteCaFe2+Si2O6
3 photos of Dalnegorskite associated with DatoliteCaB(SiO4)(OH)

Related Minerals - Strunz-mindat GroupingHide

9.DG.CalcinaksiteKNaCa(Si4O10) · H2OTric. 1 : P1
9.DG.Barrydawsonite-(Y)Na1.5Y0.5CaSi3O8(OH)Mon. 2/m : P21/b
9.DG.ParatobermoriteCa4(Al0.5Si0.5)2Si4O16(OH)(H2O)2 · (Ca · 3H2O)Mon. 2/m
9.DG.AlvesiteNaKZrSi6O15 · 2H2OOrth. mmm (2/m 2/m 2/m)
9.DG.02SteedeiteNaMn2[Si3BO9](OH)2Tric. 1 : P1
9.DG.02NolzeiteNaMn2[Si3BO9](OH)2 · 2H2OTric. 1 : P1
9.DG.05BustamiteCaMn2+(Si2O6)Tric. 1 : P1
9.DG.05FerrobustamiteCaFe2+(Si2O6)Tric. 1
9.DG.05PectoliteNaCa2Si3O8(OH)Tric. 1 : P1
9.DG.05SeranditeNaMn2+2Si3O8(OH)Tric. 1 : P1
9.DG.05WollastoniteCa3(Si3O9)Tric. 1 : P1
9.DG.05Wollastonite-1ACaSiO3Tric. 1 : P1
9.DG.05TanohataiteLiMn2Si3O8(OH)Tric. 1 : P1
9.DG.05SchizoliteNaCaMnSi3O8(OH)Tric. 1 : P1
9.DG.05MurakamiiteLiCa2Si3O8(OH)Tric. 1 : P1
9.DG.07CascanditeCaScSi3O8(OH)Tric. 1
9.DG.08Plombièrite[Ca4Si6O16(OH)2 · 2H2O] · (Ca · 5H2O)Orth.
9.DG.10Clinotobermorite[Ca4Si6O17 · 2H2O] · (Ca · 3H2O)Mon.
9.DG.10RiversideiteCa5(HSi3O9)2 · 2H2OOrth.
9.DG.10TobermoriteCa4Si6O17(H2O)2 · (Ca · 3H2O)Mon. 2 : P21
9.DG.12JusiteNa2Ca15Al4Si16O54 · 17H2O
9.DG.12KenotobermoriteCa4Si6O15(OH)2(H2O)2 · 3H2OMon.
9.DG.15FoshagiteCa4(Si3O9)(OH)2Tric. 1 : P1
9.DG.20JenniteCa9(Si3O9)2(OH)8 · 8H2OTric. 1 : P1
9.DG.20KameneviteK2TiSi3O9 · H2OOrth. 2 2 2 : P21 21 21
9.DG.25ParaumbiteK3Zr2H(Si3O9)2 · nH2OOrth. mm2
9.DG.25UmbiteK2(Zr,Ti)Si3O9 · H2OOrth. 2 2 2 : P21 21 21
9.DG.30SørenseniteNa4SnBe2Si6O16(OH)4Mon. 2/m : B2/b
9.DG.32Escheite Ca2NaMnTi5[Si12O34]O2(OH)3 · 12H2OOrth. mm2 : Ama2
9.DG.35XonotliteCa6(Si6O17)(OH)2Mon. 2/m : B2/m
9.DG.40HillebranditeCa2(SiO3)(OH)2Orth. mmm (2/m 2/m 2/m) : Cmcm
9.DG.45ZoriteNa8(Ti,Nb)5(Si6O17)2(OH,O)5 · 14H2OOrth.
9.DG.45ChivruaiiteCa4(Ti,Nb)5(Si6O17)2(OH,O)5 · 13-14H2OOrth. mmm (2/m 2/m 2/m) : Cmmm
9.DG.50Haineaultite(Na,Ca)5Ca(Ti,Nb)5(Si6O17)2(OH,F)8 · 5H2OOrth. 2 2 2 : C2 2 2
9.DG.55EpididymiteNa2Be2Si6O15 · H2OOrth. mmm (2/m 2/m 2/m) : Pnma
9.DG.60EudidymiteNa2Be2Si6O15 · H2OMon. 2/m : B2/b
9.DG.65ElpiditeNa2ZrSi6O15 · 3H2OOrth.
9.DG.65PatyniteNaKCa4[Si9O23]Tric. 1 : P1
9.DG.67WhelaniteCu2+2Ca6[Si6O17(OH)](CO3)(OH)3 · 2H2OOrth. mm2 : Pnn2
9.DG.70Fenaksite(K,Na)4(Fe,Mn)2(Si4O10)2(OH,F)Tric. 1 : P1
9.DG.70LitidioniteCuNaKSi4O10Tric. 1 : P1
9.DG.70ManaksiteKNaMnSi4O10Tric. 1 : P1
9.DG.70YusupoviteNa2Zr(Si6O15) · 2.5H2OMon. 2/m : B2/m
9.DG.70EnricofrancoiteKNaCaSi4O10Tric. 1 : P1
9.DG.75TinaksiteK2Na(Ca,Mn2+)2TiO[Si7O18(OH)]Tric.
9.DG.75TokkoiteK2Ca4[Si7O18(OH)](OH,F)Tric.
9.DG.75SenkevichiteCsKNaCa2TiO[Si7O18](OH)Tric. 1 : P1
9.DG.80CanasiteK3Na3Ca5Si12O30(OH)4Mon. m : Bm
9.DG.80FluorcanasiteK3Na3Ca5Si12O30F4 · H2OMon. m : Bm
9.DG.85MiseriteK1.5-x(Ca,Y,REE)5(Si6O15)(Si2O7)(OH,F)2 · yH2OTric.
9.DG.90FrankameniteK3Na3Ca5(Si12O30)(F,OH)4 · H2OTric. 1 : P1
9.DG.92Charoite(K,Sr)15-16(Ca,Na)32[Si6O11(O,OH)6]2[Si12O18(O,OH)12]2[Si17O25(O,OH)18]2(OH,F)4 · ~3H2OMon. 2/m : P21/m
9.DG.95YuksporiteK4(Ca,Na)14(Sr,Ba)2(◻,Mn,Fe)(Ti,Nb)4(O,OH)4(Si6O17)2(Si2O7)3(H2O,OH)3Mon. 2/m : P21/m
9.DG.97Eveslogite(Na,K,Ca,Sr,Ba)48 [(Ti,Nb,Mn,Fe2+)12Si48O144(OH)12](F,OH,Cl)14Mon. 2/m : P2/m

Fluorescence of DalnegorskiteHide

In UV light:
Not known to fluoresce. Does not fluoresce from the type locality.

Other InformationHide

IR Spectrum:
The wave-numbers of maxima of strong bands in the characteristic region of Si—O stretching vibrations in the IR spectrum of dalnegorskite are (cm–1): 905, 937, 1025, 1070.
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 DalnegorskiteHide

References for DalnegorskiteHide

Localities for DalnegorskiteHide

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.
Russia
 
  • Chelyabinsk Oblast
    • Ilmen Mountains
Makagonov et al. (2023)
  • Primorsky Krai
    • Dalnegorsk Urban District
      • Dalnegorsk
        • Dal'negorsk B deposit
Mineralogical Magazine: 82: 779-785. +2 other references
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