Satimolite
A valid IMA mineral species
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About Satimolite
Formula:
KNa2(Al5Mg2)[B12O18(OH)12](OH)6Cl4 · 4H2O
Redefined in 2018. Original formula did not contain Mg.
Colour:
White to colorless
Lustre:
Vitreous, Dull
Hardness:
1 - 2
Crystal System:
Trigonal
Name:
Named after its discovery locality.
The formula was recently redefined to KNa2(Al5Mg2)[B12O18(OH)12](OH)6Cl4·4H2O.
Unique combination of elements.
Unique combination of elements.
Unique Identifiers
Mindat ID:
3541
Long-form identifier:
mindat:1:1:3541:1
GUID
(UUID V4):
(UUID V4):
c303dc3a-f417-47d4-9035-ce33b0b00ffb
IMA Classification of Satimolite
Approved
IMA status notes:
Redefined by the IMA
Approval year:
1967
First published:
1969
Approval history:
IMA 2018: Formula modified (CNMNC Newsletter No. 47)
Classification of Satimolite
6.H0.15
6 : BORATES
H : Unclassified borates
0 :
6 : BORATES
H : Unclassified borates
0 :
26.7.4.1
26 : HYDRATED BORATES CONTAINING HYDROXYL OR HALOGEN
7 : Miscellaneous
26 : HYDRATED BORATES CONTAINING HYDROXYL OR HALOGEN
7 : Miscellaneous
10.1.17
10 : Borates with other anions
1 : Borates with halide
10 : Borates with other anions
1 : Borates with halide
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 |
|---|---|---|
| Sati | 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 Satimolite
Vitreous, Dull
Transparency:
Transparent, Translucent
Comment:
Separate crystals are colourless and transparent, with strong vitreous lustre
Colour:
White to colorless
Streak:
White
Hardness:
1 - 2 on Mohs scale
Optical Data of Satimolite
Type:
Biaxial (-)
RI values:
nα = 1.535 nβ = 1.552 nγ = 1.553
2V:
Calculated: 26°
Max Birefringence:
δ = 0.018
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
and does not take into account mineral colouration.
Surface Relief:
Low
Dispersion:
r > v weak
Chemistry of Satimolite
Mindat Formula:
KNa2(Al5Mg2)[B12O18(OH)12](OH)6Cl4 · 4H2O
Redefined in 2018. Original formula did not contain Mg.
Redefined in 2018. Original formula did not contain Mg.
Crystallography of Satimolite
Crystal System:
Trigonal
Class (H-M):
3m (3 2/m) - Hexagonal Scalenohedral
Space Group:
R3m
Setting:
R3m
Cell Parameters:
a = 15.1431(8) Å, c = 14.4558(14) Å
Ratio:
a:c = 1 : 0.955
Unit Cell V:
2870.8 ų
Z:
3
Morphology:
Blocky rhombohedral crstals, massive
Comment:
Redefinition, Pekov et al. (2018)
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 3.20 Å | (100) |
| 9.5 Å | (90) |
| 6.3 Å | (90) |
| 4.01 Å | (90) |
| 3.51 Å | (80) |
| 2.441 Å | (80) |
| 1.966 Å | (80) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Near-surface Processes | |
| 25 : Evaporites (prebiotic) |
Type Occurrence of Satimolite
General Appearance of Type Material:
Dense, rounded aggregates up to 6-8 mm in diameter that crumble under light pressure into a fine chalk-like powder, consisting of grains (0.001-0.003 mm) usually irregular in form. Rarely as tabular rhombic forms up to 0.02 mm long along the long diagonal
Place of Conservation of Type Material:
Mining Institute, St. Petersburg, Russia, 1023/1.
A.E. Fersman Mineralogical Museum, Academy of Sciences, Moscow, Russia, 69941.
A.E. Fersman Mineralogical Museum, Academy of Sciences, Moscow, Russia, 69941.
Geological Setting of Type Material:
Evaporite deposit
Associated Minerals at Type Locality:
Reference:
Bocharov, V.M., Khalturina, I.I., Avrova, N.P., Shipovalov, Y.V. (1969) The new mineral satimolite, a hydrous chlorine-containing borate of aluminum and alkalies. Trudy Mineralogicheskogo Muzeya Akademiya Nauk SSSR: 19: 121-123.
Synonyms of Satimolite
Other Language Names for Satimolite
German:Satimolit
Spanish:Satimolita
Related Minerals - Strunz-mindat Grouping
| 6.H0.05 | Chelkarite | CaMgB2O4(Cl,OH)2 · 5H2O Or near, with Cl:OH = 3:1 |
| 6.H0.10 | Braitschite-(Ce) | (Ca,Na2)7(Ce,La)2B22O43 · 7H2O |
| 6.H0.20 | Iquiqueite | K3Na4Mg(CrO4)B24O39(OH) · 12H2O |
| 6.H0.25 | Wardsmithite | Ca5Mg[B4O7]6 · 30H2O |
| 6.H0.35 | Halurgite | Mg4[B8O13(OH)2]2 · 7H2O |
| 6.H0.40 | Ekaterinite | Ca2(B4O7)(Cl,OH)2 · 2H2O |
| 6.H0.45 | Vitimite | Ca6[B14O19](SO4)(OH)14 · 5H2O |
| 6.H0.50 | Canavesite | Mg2(HBO3)(CO3) · 5H2O |
| 6.H0.55 | Qilianshanite | NaHCO3 · H3BO3 · 2H2O |
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 Satimolite
mindat.org URL:
https://www.mindat.org/min-3541.html
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Please feel free to link to this page.
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References for Satimolite
Localities for Satimolite
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.
Kazakhstan | |
| Коротченкова et al. (2016) +1 other reference |
| Pekov et al. (2020) | |
| Mineralogical Society of America - ... +2 other references |
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Satimola salt dome, Oral, West Kazakhstan Region, Kazakhstan