Khangalasite
A material that is NOT an approved mineral species
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Formula:
Fe(SO4)(OH) · 2H2O
Colour:
beige-yellow
Crystal System:
Triclinic
First Recorded Locality:
Polymorph of:
This page provides mineralogical data about Khangalasite.
Unique Identifiers
Mindat ID:
53411
Long-form identifier:
mindat:1:1:53411:4
GUID
(UUID V4):
(UUID V4):
b7d18775-967a-4e58-8ecf-c393e81b019e
IMA Classification of Khangalasite
IMA status notes:
Rejected by the IMA
Approval history:
NOTE: The pre-print version of the Newsletter 48 (IMA CNMNC list of the new mineral proposals approved in February 2019) incorrectly reports the approval of the phase. Contrary to what has been indicated, the proposal has not been approved and therefore both the name and the mineral must not be included among the approved mineral species.
The name and the entire card will be removed from the final version of Newsletter 48 which will be published both in the Mineralogical Magazine and in the European Journal or Mineralogy.
The main cause of non-approval: the fine-fibrous texture precluding resolving the crystal structure
The name and the entire card will be removed from the final version of Newsletter 48 which will be published both in the Mineralogical Magazine and in the European Journal or Mineralogy.
The main cause of non-approval: the fine-fibrous texture precluding resolving the crystal structure
Classification of Khangalasite
7.DE.57
7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
D : Sulfates (selenates, etc.) with additional anions, with H2O
E : With only medium-sized cations; unclassified
7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
D : Sulfates (selenates, etc.) with additional anions, with H2O
E : With only medium-sized cations; unclassified
Physical Properties of Khangalasite
Colour:
beige-yellow
Chemistry of Khangalasite
Mindat Formula:
Fe(SO4)(OH) · 2H2O
Elements listed:
Crystallography of Khangalasite
Crystal System:
Triclinic
Cell Parameters:
a = 7.30(1) Å, b = 10.96(2) Å, c = 11.70(2) Å
α = 108(1)°, β = 102.1(4)°, γ = 97.0(2)°
α = 108(1)°, β = 102.1(4)°, γ = 97.0(2)°
Ratio:
a:b:c = 0.666 : 1 : 1.068
Unit Cell V:
852.78 ų (Calculated from Unit Cell)
Comment:
Space group is P1 or P-1
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 10.72 Å | (100 |
| 10.22 Å | (80) |
| 9.12 Å | (28) |
| 5.356 Å | (8) |
| 4.108 Å | (10) |
| 3.758 Å | (9) |
| 3.476 Å | (4) |
First Recorded Occurrence of Khangalasite
General Appearance of First Recorded Material:
very soft; fibrous texture; finely crystalline; as veinlets and nest-like aggregates, up to 5–6 cm in diameter, comprising thin, elongated, acicular crystals, ≤1 μm across and ≤20 μm in length
Place of Conservation of First Recorded Material:
Collections of the Fersman Mineralogical Museum, Russian Academy of Sciences, Leninskiy Prospekt 18-2, Moscow 119071, Russia, registration number 4254/1
Associated Minerals at First Recorded Locality:
Synonyms of Khangalasite
Related Minerals - Strunz-mindat Grouping
| 7.DE. | Cossaite | (Mg0.5,◻)Al6(SO4)6(HSO4)F6 · 36H2O |
| 7.DE. | Magnesioalterite | Mg2Fe3+4(SO4)4(C2O4)2(OH)4 · 17H2O |
| 7.DE. | Liangjunite | K2(Mo2O5)(SO4)2 · 3H2O |
| 7.DE. | Fabritzite | Zn9(SO4)2(OH)12Cl2 · 6H2O |
| 7.DE. | Downsite | K2(MoO3)3(SO4) · 4H2O |
| 7.DE.05 | Mangazeite | Al2(SO4)(OH)4 · 3H2O |
| 7.DE.10 | Carbonatecyanotrichite | Cu4Al2(CO3,SO4)(OH)12 · 2H2O |
| 7.DE.10 | Cyanotrichite | Cu4Al2(SO4)(OH)12 · 2H2O |
| 7.DE.10 | UKI-1975-(SO:AlCu) | (Cu, Al, SO4, H2O) |
| 7.DE.15 | Schwertmannite | Fe3+16(OH,SO4)12-13O16 · 10-12H2O |
| 7.DE.20 | Tlalocite | Cu10Zn6(Te6+O4)2(Te4+O3)(OH)25Cl · 27H2O |
| 7.DE.25 | Utahite | MgCu4Zn2Te6+3O14(OH)4 · 6H2O |
| 7.DE.35 | Coquandite | Sb6+xO8+x(SO4)(OH)x(H2O)1- x (x = 0.3) |
| 7.DE.40 | Osakaite | Zn4(SO4)(OH)6 · 5H2O |
| 7.DE.42 | Alterite | Zn2Fe3+4(SO4)4(C2O4)2(OH)4 · 17H2O |
| 7.DE.45 | Wilcoxite | MgAl(SO4)2F · 17H2O |
| 7.DE.45 | Barrotite | Cu9Al(HSiO4)2[(SO4)(HAsO4)0.5](OH)12 · 8H2O |
| 7.DE.47 | Tiberiobardiite | {Cu9Al[SiO3(OH)]2(OH)12(H2O)6}(SO4)1.5 · 10H2O |
| 7.DE.50 | Stanleyite | (V4+O)(SO4) · 6H2O |
| 7.DE.50 | Bouškaite | (MoO2)2O(SO3OH)2(H2O)4 |
| 7.DE.60 | Hydrobasaluminite | Al4(SO4)(OH)10 · 12-36H2O |
| 7.DE.62 | Volaschioite | Fe4(SO4)O2(OH)6 · 2H2O |
| 7.DE.65 | Zaherite | Al12(SO4)5(OH)26 · 20H2O |
| 7.DE.75 | Camérolaite | Cu6Al3(OH)18(H2O)2[Sb(OH)6](SO4) |
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 Khangalasite
mindat.org URL:
https://www.mindat.org/min-53411.html
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References for Khangalasite
Localities for Khangalasite
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.
Russia (FRL) | |
| Mineralogical Magazine: 83: xxx-xxx +2 other references |
