Kollerite
A valid IMA mineral species
This page is currently not sponsored. Click here to sponsor this page.
About Kollerite
Gábor Koller
Formula:
(NH4)2Fe3+(SO3)2(OH) · H2O
Colour:
Yellow
Lustre:
Vitreous
Hardness:
2
Specific Gravity:
2.07 (Calculated)
Crystal System:
Orthorhombic
Name:
The mineral was named in honor of Gábor Koller (b. 1975), a prominent figure of the Hungarian mineral collecting community since 1995. He has found more than 30 mineral species new for the territory of Hungary. He was also the discoverer of the new mineral species rudabányaite (IMA 2016-088).
Type Locality:
First confirmed ammonium sulfate(IV) (sulfite) mineral.
Associated with kollerite are two other, chemicall similar phases:
- AIS-1, trigonal (NH4)9Fe3+(SO3)6
- AIS-2, trigonal (NH4)2Fe2+(SO3)2.
Both AIS-1 and AIS-2 are metastable phases that break down in a few weeks and a few years, respectively.
New structure type.
Associated with kollerite are two other, chemicall similar phases:
- AIS-1, trigonal (NH4)9Fe3+(SO3)6
- AIS-2, trigonal (NH4)2Fe2+(SO3)2.
Both AIS-1 and AIS-2 are metastable phases that break down in a few weeks and a few years, respectively.
New structure type.
Unique Identifiers
Mindat ID:
53409
Long-form identifier:
mindat:1:1:53409:9
Similar Names
| Clerite | A valid IMA mineral species | MnSb2S4 |
| Kahlerite | A valid IMA mineral species - grandfathered | Fe2+(UO2)2(AsO4)2 · 12H2O |
| Kellerite | A variety of Pentahydrite | (Mg,Cu)SO4 · 5H2O |
| Kolarite | A valid IMA mineral species | PbTeCl2 |
| Kularita | A synonym of Monazite-(Ce) | |
| Kularite | A variety of Monazite-(Ce) | (Ce,Nd,La,Eu)[PO4] |
IMA Classification of Kollerite
Classification of Kollerite
4.JE.25
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
J : Arsenites, antimonites, bismuthites, sulfites, selenites, tellurites; iodates
E : Sulfites
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
J : Arsenites, antimonites, bismuthites, sulfites, selenites, tellurites; iodates
E : Sulfites
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 for Standard |
|---|---|---|
| Klr | 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 Kollerite
Vitreous
Transparency:
Translucent
Colour:
Yellow
Streak:
Pale yellow
Hardness:
2 on Mohs scale
Tenacity:
Brittle
Cleavage:
None Observed
Fracture:
Irregular/Uneven
Density:
2.07(2) g/cm3 (Calculated)
Chemistry of Kollerite
Mindat Formula:
(NH4)2Fe3+(SO3)2(OH) · H2O
Element Weights:
Crystallography of Kollerite
Crystal System:
Orthorhombic
Class (H-M):
mmm(2/m2/m2/m) - Dipyramidal
Space Group:
Cmcm
Setting:
Cmcm
Cell Parameters:
a = 17.803(7) Å, b = 7.395(4) Å, c = 7.096(3) Å
Ratio:
a:b:c = 2.407 : 1 : 0.96
Unit Cell V:
934.21 ų (Calculated from Unit Cell)
Z:
4
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 8.905 Å | (100) |
| 6.830 Å | (61) |
| 3.887 Å | (8) |
| 3.417 Å | (17) |
| 3.283 Å | (8) |
| 2.973 Å | (15) |
| 2.847 Å | (16) |
| 2.643 Å | (9) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 10a: Neoproterozoic oxygenation/terrestrial biosphere | <0.6 |
| 50 : Coal and/or oil shale minerals | <0.36 |
| Stage 10b: Anthropogenic minerals | <10 Ka |
| 54 : Coal and other mine fire minerals (see also #51 and #56) |
Type Occurrence of Kollerite
General Appearance of Type Material:
Sprays of long-prismatic or lath-like crystals up to 0.7 mm.
Place of Conservation of Type Material:
Mineralogical collections of the Herman Ottó Museum, Kossuth u. 13, H-3525 Miskolc, Hungary, catalogue number 2018.201 (holotype); the Hungarian Natural History Museum, Ludovika tér 2-6, H-1083 Budapest, Hungary, catalogue number Gyn/3591 (cotype).
Geological Setting of Type Material:
Burning waste dumps of a coal mine.
Associated Minerals at Type Locality:
Synonyms of Kollerite
Other Language Names for Kollerite
Related Minerals - Strunz-mindat Grouping
| 4.JE.X | Albertiniite | Fe2+(SO3) · 3H2O |
| 4.JE. | Mikenewite | Mn2+(S4+O3) · 3H2O |
| 4.JE. | Vanpeltite | (Mo2O5)(S4+O3) · 4H2O |
| 4.JE.05 | Fleisstalite | FeSO3 · 3H2O |
| 4.JE.05 | Gravegliaite | Mn2+SO3 · 3H2O |
| 4.JE.10 | Hannebachite | CaSO3 · H2O |
| 4.JE.15 | Orschallite | Ca3(SO3)2(SO4) · 12H2O |
| 4.JE.20 | Scotlandite | PbSO3 |
Other Information
Notes:
The mineral dissolves easily in water.
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 Kollerite
mindat.org URL:
https://www.mindat.org/min-53409.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 Kollerite
Reference List:
Miyawaki, Ritsuro, Hatert, Frédéric, Pasero, Marco, Mills, Stuart J. (2019) New minerals and nomenclature modifications approved in 2019. CNMNC Newsletter No 48. Mineralogical Magazine, 83 (2) 315-317 doi:10.1180/mgm.2019.23
Fehér, Béla, Szakáll, Sándor, Ende, Martin, Effenberger, Herta S., Mihály, Judith, Sajó, István, Kótai, László, Szabó, Dávid (2023) Three ammonium-iron-sulfite phases from a burning dump of the Vasas abandoned opencast coal mine (Pécs, Mecsek Mountains, Hungary) and the new mineral kollerite. Mineralogy and Petrology, 117 (2) 231-245 doi:10.1007/s00710-023-00818-1
Localities for Kollerite
Showing 1 localities.
symbol to view information about a locality.
The 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).
All localities listed without proper references should be considered as questionable.
Hungary (TL) | |
| Miyawaki et al. (2019) +2 other references |
Quick NavTopAbout KolleriteUnique IdentifiersSimilar NamesIMA Classification Classification Mineral SymbolsPhysical Properties Chemistry Crystallography X-Ray Powder DiffractionGeological EnvironmentType Occurrence SynonymsOther LanguagesStrunz-MindatOther InformationInternet Links References Localities Locality List
Pécs-Vasas, Pécs District, Baranya County, Hungary