Diversilite-(Ce)
A valid IMA mineral species
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About Diversilite-(Ce)
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.
Type Locality:
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 Identifiers
Mindat ID:
11518
Long-form identifier:
mindat:1:1:11518:6
GUID
(UUID V4):
(UUID V4):
8b48cced-b29b-4d6b-8cf3-4e10a5e50b3f
IMA Classification of Diversilite-(Ce)
Approved
IMA Formula:
Na2Ba6Ce2Fe2+Ti3Si12O36(OH)10 · nH2O
Approval year:
2002
First published:
2003
Classification of Diversilite-(Ce)
9.CB.10
9 : SILICATES (Germanates)
C : Cyclosilicates
B : [Si3O9]6- 3-membered single rings, with insular complex anions
9 : SILICATES (Germanates)
C : Cyclosilicates
B : [Si3O9]6- 3-membered single rings, with insular complex anions
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
Symbol | Source | Reference |
---|---|---|
Dvs-Ce | IMA–CNMNC | Warr, 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)
Vitreous
Transparency:
Translucent
Colour:
Brownish yellow to yellowish orange
Streak:
White
Hardness:
5 on Mohs scale
Tenacity:
Brittle
Fracture:
Conchoidal
Density:
3.68 g/cm3 (Measured) 3.72 g/cm3 (Calculated)
Chemistry of Diversilite-(Ce)
Mindat Formula:
Na2(Ba,K)6Fe2+Ce2Ti3(Si3O9)3(HSiO4)3(OH,H2O)9
Crystallography of Diversilite-(Ce)
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 Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
10.12 Å | (27) |
3.236 Å | (100) |
2.654 Å | (38) |
2.642 Å | (44) |
2.026 Å | (61) |
Geological Environment
Paragenetic Mode(s):
Paragenetic Mode | Earliest Age (Ga) |
---|---|
Stage 4b: Highly evolved igneous rocks | >3.0 |
35 : Ultra-alkali and agpaitic igneous rocks |
Type Occurrence of Diversilite-(Ce)
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)
Other Language Names for Diversilite-(Ce)
Russian:Диверсилит-(Ce)
Related Minerals - Strunz-mindat Grouping
9.CB.05 | Roeblingite | Pb2Ca6Mn2+(Si3O9)2(SO4)2(OH)2 · 4H2O |
9.CB.15 | Ilímaussite-(Ce) | (Na,K)7-8(Ba,K)10Ce5(Nb,Ti)6(Si3O9)4(Si9O18)O6(O,OH)24 |
Fluorescence of Diversilite-(Ce)
none
Other Information
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)
mindat.org URL:
https://www.mindat.org/min-11518.html
Please feel free to link to this page.
Please feel free to link to this page.
Search Engines:
External Links:
Mineral Dealers:
References for Diversilite-(Ce)
Reference List:
Mandarino, Joseph A. (2004) New minerals. The Canadian Mineralogist, 42 (3) 921-945 doi:10.2113/gscanmin.42.3.921
Jambor, John L., Roberts, Andrew C. (2005) New Mineral Names. American Mineralogist, 90 (1) 271-275 doi:10.2138/am.2005.429
Localities for Diversilite-(Ce)
Locality List
- 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.
All localities listed without proper references should be considered as questionable.
Russia (TL) | |
| Khomyakov et al. (2003) +2 other references |
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Yukspor Mt, Khibiny Massif, Murmansk Oblast, Russia