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Shomiokite-(Y)

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About Shomiokite-(Y)Hide

Formula:
Na3Y[CO3]3 · 3H2O
Colour:
colourless, pink
Lustre:
Silky, Dull
Hardness:
2 - 3
Crystal System:
Orthorhombic
Name:
Named after its discovery near the Shomiok River.
This page provides mineralogical data about Shomiokite-(Y).


Classification of Shomiokite-(Y)Hide

Approved
Approval Year:
1990
5.CC.20

5 : CARBONATES (NITRATES)
C : Carbonates without additional anions, with H2O
C : With rare earth elements (REE)
15.4.7.1

15 : HYDRATED NORMAL CARBONATES
4 : AmBn(XO3)p·xH2O, with (m+n):p < 1:1

Physical Properties of Shomiokite-(Y)Hide

Silky, Dull
Transparency:
Transparent
Colour:
colourless, pink
Streak:
white
Hardness:
2 - 3 on Mohs scale
Cleavage:
Perfect

Optical Data of Shomiokite-(Y)Hide

Type:
Biaxial (+)
RI values:
nα = 1.528 nβ = 1.529 nγ = 1.531
2V:
Measured: 39° to 49°, Calculated: 72°
Max Birefringence:
δ = 0.003
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Low
Dispersion:
none

Chemical Properties of Shomiokite-(Y)Hide

Formula:
Na3Y[CO3]3 · 3H2O
IMA Formula:
Na3Y(CO3)3 · 3H2O

Crystallography of Shomiokite-(Y)Hide

Crystal System:
Orthorhombic

Type Occurrence of Shomiokite-(Y)Hide

Synonyms of Shomiokite-(Y)Hide

Other Language Names for Shomiokite-(Y)Hide

Common AssociatesHide

Associated Minerals Based on Photo Data:
Aegirine10 photos of Shomiokite-(Y) associated with Aegirine on mindat.org.
Adamsite-(Y)8 photos of Shomiokite-(Y) associated with Adamsite-(Y) on mindat.org.
Gaidonnayite6 photos of Shomiokite-(Y) associated with Gaidonnayite on mindat.org.
Quartz3 photos of Shomiokite-(Y) associated with Quartz on mindat.org.
Lanthanite3 photos of Shomiokite-(Y) associated with Lanthanite on mindat.org.
Thomasclarkite-(Y)2 photos of Shomiokite-(Y) associated with Thomasclarkite-(Y) on mindat.org.
Fluorite2 photos of Shomiokite-(Y) associated with Fluorite on mindat.org.
Siderite2 photos of Shomiokite-(Y) associated with Siderite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

5.CC.05Donnayite-(Y)NaCaSr3Y(CO3)6 · 3H2OTric. 1 : P1
5.CC.05EwalditeBa(Na,Ca,Y,Ce,K)(CO3)2 · 2.6H2OHex. 6mm
5.CC.05Mckelveyite-(Nd)(Ba,Sr)(Nd,Ce,La)(CO3)2 · 4-10H2OTric.
5.CC.05Mckelveyite-(Y)NaCaBa3Y(CO3)6 · 3H2OTric. 1 : P1
5.CC.05WeloganiteNa2Sr3Zr(CO3)6 · 3H2OTric. 1 : P1
5.CC.10Tengerite-(Y)Y2(CO3)3 · 2-3H2OOrth. mmm (2/m 2/m 2/m) : Pnnm
5.CC.15Kimuraite-(Y)Ca(Y,Nd)2(CO3)4 · 6H2OOrth.
5.CC.15Lokkaite-(Y)Ca(Y,Gd,Nd,Dy)4(CO3)7 · 9H2OOrth.
5.CC.25Calkinsite-(Ce)(Ce,La)2(CO3)3 · 4H2OOrth.
5.CC.25Lanthanite-(Ce)(Ce,La,Nd)2(CO3)3 · 8H2OOrth. mmm (2/m 2/m 2/m)
5.CC.25Lanthanite-(La)(La,Ce)2(CO3)3 · 8H2OOrth.
5.CC.25Lanthanite-(Nd)(Nd,La)2(CO3)3 · 8H2OOrth.
5.CC.30Adamsite-(Y)NaY[CO3]2 · 6H2OTric. 1 : P1
5.CC.35Decrespignyite-(Y)Cu(Y,REE)4(CO3)4(OH)5Cl · 2H2OMon.
5.CC.40Galgenbergite-(Ce)Ca(Ce,La,Nd)2(CO3)4 · H2OTric.

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 Shomiokite-(Y)Hide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
KHOMYAKOV, A.P., SHUMYATSKAYA, N.G., and POLEZHAEVA, L.I. (1992) Shomiokite (Y) Na3Y(CO3)3.3H2O a new mineral. Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva, 121, (6), 129 132 (in Russian). AbstracT: American Mineralogist (1994): 79: 765-766.
GRICE, J.D. (1996) The crystal structure of shomiokite (Y). Canadian Mineralogist, 34, 649-655.
RASTSVETAEVA, R.K., PUSHCHAROVSKY, D.Yu., and PEKOV, I.G. (1996) Crystal structure of shomiokite-(Y), Na3Y(CO3)3•3H2O European Journal of Mineralogy, 8, 1249-1255.

Internet Links for Shomiokite-(Y)Hide

Localities for Shomiokite-(Y)Hide

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.
Canada
 
  • Québec
    • Montérégie
      • La Vallée-du-Richelieu RCM
        • Mont Saint-Hilaire
GRICE, J.D. (1996) The crystal structure of shomiokite (Y). Canadian Mineralogist, 34, 649-655. HORVÁTH, L., PFENNINGER HORVÁTH, E. (2000) I minerali di Mont-Saint-Hilaire (Québec, Canada) Rivista Mineralogica Italiana, 24, 140-202 (in Italian with English summary).
Russia (TL)
 
  • Northern Region
    • Murmanskaya Oblast'
      • Lovozero Massif
        • Alluaiv Mt
          • Umbozero mine (Umbozerskii mine; Umba Mine)
Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow; Zap.Vses.Mineral.Obshch. 121(6), 129(1992)[Am. Min. 79,766](abstract); Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow; Pekov, I.V. (2000): Lovozero Massif. Moscow, Ocean Pictures Ltd, 480 pp.
Mineral and/or Locality  
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