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Diversilite-(Ce)

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About Diversilite-(Ce)Hide

Formula:
Na2(Ba,K)6Fe2+Ce2Ti3(Si3O9)3(HSiO4)3(OH,H2O)9
Colour:
brownish yellow to yellowish orange
Lustre:
Vitreous
Hardness:
5
Specific Gravity:
3.68
Crystal System:
Trigonal
Name:
For the different (latin: diversus) silicate groups in its structure and cerium being the dominant rare earth element in its chemical composition
Compositionally and structurally related to ilímaussite-(Ce); also chemically similar to joaquinite-(Ce) and orthojoaquinite-(Ce). Also related to Unnamed (K-Ti analogue of ilímaussite-(Ce)).




Classification of Diversilite-(Ce)Hide

Approved
Approval Year:
2002
9.CB.10

9 : SILICATES (Germanates)
C : Cyclosilicates
B : [Si3O9]6- 3-membered single rings, with insular complex anions

Physical Properties of Diversilite-(Ce)Hide

Vitreous
Transparency:
Translucent
Colour:
brownish yellow to yellowish orange
Streak:
white
Hardness:
Tenacity:
Brittle
Fracture:
Conchoidal
Density:
3.68 g/cm3 (Measured)    3.72 g/cm3 (Calculated)

Chemical Properties of Diversilite-(Ce)Hide

Formula:
Na2(Ba,K)6Fe2+Ce2Ti3(Si3O9)3(HSiO4)3(OH,H2O)9
IMA Formula:
Na2Ba6Ce2Fe2+Ti3Si12O36(OH)10 · nH2O

Crystallography of Diversilite-(Ce)Hide

Crystal System:
Trigonal
Class (H-M):
3 - Rhombohedral
Cell Parameters:
a = 10.710(2) Å, c = 60.80(2) Å
Ratio:
a:c = 1 : 5.677
Unit Cell V:
6,039.67 ų (Calculated from Unit Cell)
Z:
6
Comment:
unit cell parameters similar to those of ilímaussite-(Ce)

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
10.12 (27)
3.236 (100)
2.654 (38)
2.642 (44)
2.026 (61)

Type Occurrence of Diversilite-(Ce)Hide

General Appearance of Type Material:
radiating (fan-shaped) aggregates, up to 3 mm, of subhedral tabular crystals to 2 mm; the crystals may be platy on (001)
Place of Conservation of Type Material:
Fersman Mineralogical, Museum, Moscow, Russia
Geological Setting of Type Material:
alkali-rich pegmatites
Associated Minerals at Type Locality:

Synonyms of Diversilite-(Ce)Hide

Other Language Names for Diversilite-(Ce)Hide

Related Minerals - Nickel-Strunz GroupingHide

9.CB.05RoeblingitePb2Ca6Mn2+(Si3O9)2(SO4)2(OH)2 · 4H2OMon. 2/m : B2/m
9.CB.15Ilímaussite-(Ce)(Na,K)7-8(Ba,K)10Ce5(Nb,Ti)6(Si3O9)4(Si9O18)O6(O,OH)24Trig. 3 2 : R3 2

Fluorescence of Diversilite-(Ce)Hide

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 Diversilite-(Ce)Hide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Khomyakov, A.P. et al. (2003): Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva: 132(5): 34-39.
Lapis (2004): 29(2): 41.
Krivovichev, S.V., Y.N. Yakovenchuk (2005), Crystal structure of diversilite-(Ce): Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva: 134(1): 113-117.

Internet Links for Diversilite-(Ce)Hide

Localities for Diversilite-(Ce)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.
Russia (TL)
 
  • Northern Region
    • Murmanskaya Oblast'
      • Khibiny Massif
A.P. Khomyakov et al.: ZVMO 132(5):34-39 (2003)
Mineral and/or Locality  
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