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Hugotibergite
A valid IMA mineral species - pending publication
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Formula:
Ca6CaPb2(Si3O9)2(SO4)2(OH)2(H2O)4
Crystal System:
Monoclinic
Isostructural with:
The calcium-dominant analogue of roeblingite
structure determined
structure determined
Unique Identifiers
Mindat ID:
500205
Long-form identifier:
mindat:1:1:500205:0
IMA Classification of Hugotibergite
Approved, Pending publication
Classification of Hugotibergite
9.CB.
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 IMAâCNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference for Standard |
|---|---|---|
| Htb | IMAâCNMNC | Warr, L.N. (2021). IMAâCNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Chemistry of Hugotibergite
Mindat Formula:
Ca6CaPb2(Si3O9)2(SO4)2(OH)2(H2O)4
Element Weights:
Crystallography of Hugotibergite
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/m
Setting:
C2/m
Cell Parameters:
a = 13.2555(4) Å, b = 8.3290(3) Å, c = 13.1345(4) Å
β = 105.312°, γ = 1°
β = 105.312°, γ = 1°
Ratio:
a:b:c = 1.591 : 1 : 1.577
Unit Cell V:
1,398.64 Ã
Âģ (Calculated from Unit Cell)
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 6.993 Ã | (35) |
| 6.482 Ã | (99) |
| 3.964 Ã | (46) |
| 3.229 Ã | (100) |
| 2.961 Ã | (82) |
| 2.901 Ã | (66) |
| 2.544 Ã | (39) |
| 2.207 Ã | (50) |
Type Occurrence of Hugotibergite
Place of Conservation of Type Material:
Type material is deposited in the collections of the University of Arizona Alfie Norville Gem & Mineral Museum, 115 N Church Ave Ste 121, Tucson, AZ 85701, USA, catalogue number 22574 (holotype), and the RRUFF Project, deposition number R260002 (cotype)
Related Minerals - Strunz-mindat Grouping
| 9.CB.05 | Roeblingite | Pb2Ca6Mn2+(Si3O9)2(SO4)2(OH)2 · 4H2O |
| 9.CB.10 | Diversilite-(Ce) | Na2(Ba,K)6Fe2+Ce2Ti3(Si3O9)3(HSiO4)3(OH,H2O)9 |
| 9.CB.15 | IlÃmaussite-(Ce) | (Na,K)7-8(Ba,K)10Ce5(Nb,Ti)6(Si3O9)4(Si9O18)O6(O,OH)24 |
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 Hugotibergite
mindat.org URL:
https://www.mindat.org/min-500205.html
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Please feel free to link to this page.
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References for Hugotibergite
Localities for Hugotibergite
Showing 1 localities.
symbol to view information about a locality.
The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
â - 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).
All localities listed without proper references should be considered as questionable.
Sweden (TL) | |
| Yang et al. (2026) |
