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Diversilite-(Ce)

A valid IMA mineral species
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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)).


Unique IdentifiersHide

Mindat ID:
11518
Long-form identifier:
mindat:1:1:11518:6
GUID
(UUID V4):
8b48cced-b29b-4d6b-8cf3-4e10a5e50b3f

IMA Classification of Diversilite-(Ce)Hide

Approved
IMA Formula:
Na2Ba6Ce2Fe2+Ti3Si12O36(OH)10 · nH2O
Approval year:
2002
First published:
2003

Classification of Diversilite-(Ce)Hide

9.CB.10

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

Mineral SymbolsHide

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

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

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)

Chemistry of Diversilite-(Ce)Hide

Mindat Formula:
Na2(Ba,K)6Fe2+Ce2Ti3(Si3O9)3(HSiO4)3(OH,H2O)9

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 Å(27)
3.236 Å(100)
2.654 Å(38)
2.642 Å(44)
2.026 Å(61)

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 4b: Highly evolved igneous rocks>3.0
35 : Ultra-alkali and agpaitic igneous rocks

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 - Strunz-mindat 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.

Internet Links for Diversilite-(Ce)Hide

References 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 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 (TL)
 
  • Murmansk Oblast
    • Khibiny Massif
Khomyakov et al. (2003) +2 other references
 
Mineral and/or Locality  
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