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Quintinite-2T
A structural variant of Quintinite
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Formula:
Mg4Al2(OH)12(CO3) · 3H2O
Specific Gravity:
2.16 (Calculated)
Crystal System:
Trigonal
A polytype of Quintinite
The powder X-ray diffraction pattern of quintinite-2T contains weak superstructure reflection at 4.57 Å (010), indicative of Mg and Al ordering.
The powder X-ray diffraction pattern of quintinite-2T contains weak superstructure reflection at 4.57 Å (010), indicative of Mg and Al ordering.
Unique Identifiers
Mindat ID:
470753
Long-form identifier:
mindat:1:1:470753:6
Physical Properties of Quintinite-2T
Density:
2.16(4) g/cm3 (Calculated)
Chemistry of Quintinite-2T
Mindat Formula:
Mg4Al2(OH)12(CO3) · 3H2O
Element Weights:
Crystallography of Quintinite-2T
Crystal System:
Trigonal
Class (H-M):
3m (3 2/m) - Hexagonal Scalenohedral
Space Group:
P3 1c
Setting:
P3 1c
Cell Parameters:
a = 5.27(2) Å, c = 15.15(5) Å
Ratio:
a:c = 1 : 2.875
Unit Cell V:
364.39 ų (Calculated from Unit Cell)
Z:
1
Comment:
averages of two crystals
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 Quintinite-2T
mindat.org URL:
https://www.mindat.org/min-470753.html
Please feel free to link to this page.
Please feel free to link to this page.
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References for Quintinite-2T
Localities for Quintinite-2T
Showing 2 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.
Brazil | |
| Zhitova et al. (2023) |
Russia | |
| Zhitova et al. (2023) |
