Abuite
A valid IMA mineral species
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About Abuite
Abu, Japan
Formula:
CaAl2(PO4)2F2
Colour:
Colourless
Lustre:
Vitreous
Specific Gravity:
3.214 (Calculated)
Crystal System:
Orthorhombic
Name:
Named for the town of Abu, Japan, in which the type locality is situated.
Chemically similar to galliskiite that, however, is hydrated.
Chemically the anhydrous F-analogue of gatumbaite.
The Ca analogue of synthetic SrAl2(PO4)2F2 (Le Meins and Courbion, 1998).
Chemically the anhydrous F-analogue of gatumbaite.
The Ca analogue of synthetic SrAl2(PO4)2F2 (Le Meins and Courbion, 1998).
Unique Identifiers
Mindat ID:
46490
Long-form identifier:
mindat:1:1:46490:3
GUID
(UUID V4):
(UUID V4):
420d43d3-0aa8-494a-b29f-47996dac8308
IMA Classification of Abuite
Approved
Approval year:
2015
First published:
2017
Classification of Abuite
8.B0.
8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
0 :
8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
0 :
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 |
|---|---|---|
| Abu | 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 Abuite
Vitreous
Transparency:
Transparent
Colour:
Colourless
Streak:
White
Cleavage:
None Observed
Density:
3.214 g/cm3 (Calculated)
Comment:
Calculated using empirical formula
Chemistry of Abuite
Mindat Formula:
CaAl2(PO4)2F2
Crystallography of Abuite
Crystal System:
Orthorhombic
Class (H-M):
2 2 2 - Disphenoidal
Space Group:
P21 21 21
Setting:
P21 21 21
Cell Parameters:
a = 11.818(2) Å, b = 11.993(3) Å, c = 4.6872(8) Å
Ratio:
a:b:c = 0.985 : 1 : 0.391
Unit Cell V:
664.3 ų
Z:
4
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 4.362 Å | (25) |
| 3.683 Å | (32) |
| 3.529 Å | (43) |
| 3.139 Å | (86) |
| 2.951 Å | (100) |
| 2.928 Å | (80) |
| 2.183 Å | (24) |
| 2.046 Å | (21) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Near-surface Processes | |
| 23 : Subaerial aqueous alteration by non-redox-sensitive fluids (see also #47) |
Type Occurrence of Abuite
General Appearance of Type Material:
Grains of 100–500 µm in size, in aggregates with other minerals. Difficult to distinguish from the associates.
Place of Conservation of Type Material:
Kitakyushu Museum of Natural History and Human History, Kitakyushu, Japan, registered number KMNHM000003.
Empirical Formula of Type Material:
(Ca0.99Sr0.01)1.00Al1.96P2.03O8(F1.89OH0.11)
Geological Setting of Type Material:
"Roseki"-type pyrophyllite deposit (hydrothermally altered rocks), often in samples rich in Al phosphates
Associated Minerals at Type Locality:
Reference:
Enju, S., Uehara, S. (2017) Abuite, CaAl2(PO4)2F2, a new mineral from the Hinomaru–Nago mine, Yamaguchi Prefecture, Japan. Journal of Mineralogical and Petrological Sciences: 112: 109–115.
Synonyms of Abuite
Related Minerals - Strunz-mindat Grouping
| 8.B0. | Yakubovichite | CaNi2Fe3+(PO4)3 |
| 8.B0.20 | Joëlbruggerite | Pb3Zn3(Sb5+,Te6+)As2O13(OH,O) |
Fluorescence of Abuite
Not fluorescent
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 Abuite
mindat.org URL:
https://www.mindat.org/min-46490.html
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References for Abuite
Localities for Abuite
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.
Japan (TL) | |
| Mineralogical Magazine +2 other references |
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Hinomaru-Nako mine, Abu town, Abu District, Yamaguchi Prefecture, Japan