UM1995-41-SiO:AlSr
Valid as an unnamed mineral
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Formula:
SrAl2Si2O8
Crystal System:
Triclinic
Transforms to the monoclinic (P21/a) polymorph (slawsonite) in course of heating.
Electron microprobe data, wt.%: SiO2 36.63, Al2O3 31.30, SrO 29.99, BaO 1.53, K2O 0.06, total 99.51, corresponding to (Sr0.95Ba0.03)Al2.01Si2.00O8.
Electron microprobe data, wt.%: SiO2 36.63, Al2O3 31.30, SrO 29.99, BaO 1.53, K2O 0.06, total 99.51, corresponding to (Sr0.95Ba0.03)Al2.01Si2.00O8.
Unique Identifiers
Mindat ID:
53637
Long-form identifier:
mindat:1:1:53637:0
GUID
(UUID V4):
(UUID V4):
6edce8bb-ad07-4fc3-b3b6-e0224f374867
IMA Classification of UM1995-41-SiO:AlSr
IMA status notes:
Unnamed (probably valid)
Chemistry of UM1995-41-SiO:AlSr
Mindat Formula:
SrAl2Si2O8
Elements listed:
Crystallography of UM1995-41-SiO:AlSr
Crystal System:
Triclinic
Class (H-M):
1 - Pinacoidal
Space Group:
P1
Cell Parameters:
a = 6.145(1) Å, b = 8.987(2) Å, c = 7.546(3) Å
α = 90.01(3)°, β = 90.34(3)°, γ = 89.98(3)°
α = 90.01(3)°, β = 90.34(3)°, γ = 89.98(3)°
Ratio:
a:b:c = 0.684 : 1 : 0.84
Unit Cell V:
416.72 ų (Calculated from Unit Cell)
Z:
4
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 UM1995-41-SiO:AlSr
mindat.org URL:
https://www.mindat.org/min-53637.html
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References for UM1995-41-SiO:AlSr
Reference List:
Localities for UM1995-41-SiO:AlSr
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.
Japan | |
| Tagai et al. (1995) +1 other reference |