Matioliite
A valid IMA mineral species
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About Matioliite
Formula:
NaMgAl5(PO4)4(OH)6 · 2H2O
Colour:
Blue to colourless
Lustre:
Vitreous
Hardness:
5
Specific Gravity:
2.948 (Calculated)
Crystal System:
Monoclinic
Member of:
Name:
Named for Paulo Anselmo Matioli (b. 1975)
Type Locality:
Isostructural with:
Unique Identifiers
Mindat ID:
27412
Long-form identifier:
mindat:1:1:27412:4
GUID
(UUID V4):
(UUID V4):
009f073e-be49-4699-8ab1-8e98e3475560
IMA Classification of Matioliite
Approved
Approval year:
2005
Classification of Matioliite
8.DK.15
8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
K : With large and medium-sized cations, (OH, etc.):RO4 > 1:1 and < 2:1
8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
K : With large and medium-sized cations, (OH, etc.):RO4 > 1:1 and < 2:1
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 |
---|---|---|
Mti | 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 Matioliite
Vitreous
Transparency:
Transparent
Colour:
Blue to colourless
Streak:
White
Hardness:
5 on Mohs scale
Hardness Data:
Measured
Density:
2.948 g/cm3 (Calculated)
Optical Data of Matioliite
Type:
Biaxial (-)
RI values:
nα = 1.597 nβ = 1.627 nγ = 1.627
2V:
Measured: 43° , Calculated: 44°
Max Birefringence:
δ = 0.030
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:
Moderate
Dispersion:
r > v
Pleochroism:
Visible
Comments:
Y > X > Z, X = light blue to colorless, Y = blue, Z = colorless
Chemistry of Matioliite
Mindat Formula:
NaMgAl5(PO4)4(OH)6 · 2H2O
Crystallography of Matioliite
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/b
Cell Parameters:
a = 25.075 Å, b = 5.047 Å, c = 13.437 Å
β = 110.97°
β = 110.97°
Ratio:
a:b:c = 4.968 : 1 : 2.662
Unit Cell V:
1587.9 ų
Z:
4
Crystal Structure
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2x2x2 | 3x3x3 | 4x4x4
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
---|---|---|---|---|---|---|---|
0004259 | Matioliite | Atencio D, Coutinho J M V, Mascarenhas Y P, Ellena J A (2006) Matioliite, the Mg-analogue of burangaite, from Gentil mine, Mendes Pimentel, Minas Gerais, Brazil, and other occurrences American Mineralogist 91 1932-1936 | 2006 | Gentil mine, Mendes Pimentel, Minas Gerais, Brazil | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
11.654 Å | (100) |
6.581 Å | (62) |
5.833 Å | (20) |
4.930 Å | (13) |
4.862 Å | (62) |
4.011 Å | (15) |
3.553 Å | (18) |
3.291 Å | (23) |
3.138 Å | (14) |
3.103 Å | (31) |
3.075 Å | (19) |
3.027 Å | (40) |
2.912 Å | (12) |
2.785 Å | (17) |
2.666 Å | (45) |
2.517 Å | (09) |
2.349 Å | (18) |
2.342 Å | (09) |
2.041 Å | (15) |
2.040 Å | (07) |
1.940 Å | (12) |
1.936 Å | (07) |
1.678 Å | (14) |
1.672 Å | (09) |
Comments:
Gentil mine
Geological Environment
Paragenetic Mode(s):
Paragenetic Mode | Earliest Age (Ga) |
---|---|
Stage 4b: Highly evolved igneous rocks | >3.0 |
34 : Complex granite pegmatites | |
Stage 7: Great Oxidation Event | <2.4 |
47a : [Near-surface hydration of prior minerals] | |
47c : [Carbonates, phosphates, borates, nitrates] |
Type Occurrence of Matioliite
General Appearance of Type Material:
Prismatic to tabular crystals, up to 1 mm long
Place of Conservation of Type Material:
Museum of Geosciences, Department of Geosciences, University of Sao Paulo, Brazil
"Jose Bonifacio de Andrada e Silva" (Jobas) Museum of Natural Sciences, Santos, Sao Paulo, Brazil
"Jose Bonifacio de Andrada e Silva" (Jobas) Museum of Natural Sciences, Santos, Sao Paulo, Brazil
Geological Setting of Type Material:
Secondary hydrothermal mineralization in a granite pegmatite
Associated Minerals at Type Locality:
Synonyms of Matioliite
Relationship of Matioliite to other Species
Member of:
Other Members of this group:
Bimbowrieite | NaMgFe3+5(PO4)4(OH)6 · 2H2O | Mon. 2/m : B2/b |
Burangaite | NaFe2+Al5(PO4)4(OH)6 · 2H2O | Mon. 2/m : B2/b |
Dufrénite | Ca0.5Fe2+Fe3+5(PO4)4(OH)6 · 2H2O | Mon. 2/m : B2/b |
Gayite | NaMn2+Fe3+5(PO4)4(OH)6 · 2H2O | Mon. 2/m : B2/b |
Natrodufrénite | NaFe2+Fe3+5(PO4)4(OH)6 · 2H2O | Mon. 2/m : B2/b |
Forms a series with:
Common Associates
Associated Minerals Based on Photo Data:
9 photos of Matioliite associated with Crandallite | CaAl3(PO4)(PO3OH)(OH)6 |
5 photos of Matioliite associated with Gormanite | (Fe2+,Mg)3(Al,Fe3+)4(PO4)4(OH)6 · 2H2O |
4 photos of Matioliite associated with Albite | Na(AlSi3O8) |
3 photos of Matioliite associated with Fluorapatite | Ca5(PO4)3F |
3 photos of Matioliite associated with Gormanite-Souzalite Series | |
1 photo of Matioliite associated with Quartz | SiO2 |
1 photo of Matioliite associated with Brazilianite | NaAl3(PO4)2(OH)4 |
1 photo of Matioliite associated with Montebrasite | LiAl(PO4)(OH) |
1 photo of Matioliite associated with Siderite | FeCO3 |
Related Minerals - Strunz-mindat Grouping
8.DK. | Richelsdorfite | Ca2Cu5Sb(AsO4)4(OH)6Cl · 6H2O |
8.DK. | Bimbowrieite | NaMgFe3+5(PO4)4(OH)6 · 2H2O |
8.DK. | Puttapaite | Pb2Mn2+2ZnCr3+4O2(AsO4)4(OH)6 · 12H2O |
8.DK.10 | Bariopharmacosiderite | Ba0.5Fe3+4(AsO4)3(OH)4 · 5H2O |
8.DK.10 | Pharmacosiderite | KFe3+4(AsO4)3(OH)4 · 6-7H2O |
8.DK.10 | Natropharmacosiderite | NaFe3+4(AsO4)3(OH)4 · 4H2O |
8.DK.10 | Hydroniumpharmacosiderite | (H3O)Fe4(AsO4)3(OH)4 · 4H2O |
8.DK.10 | Strontiopharmacosiderite | Sr0.5Fe4[(AsO4)3(OH)4] · 4H2O |
8.DK.10 | Thalliumpharmacosiderite | TlFe4[(AsO4)3(OH)4] · 4H2O |
8.DK.10 | Plumbopharmacosiderite | Pb0.5Fe3+4(AsO4)3(OH)4 · 5H2O |
8.DK.12 | Pharmacoalumite | KAl4(AsO4)3(OH)4 · 6.5H2O |
8.DK.12 | Natropharmacoalumite | NaAl4(AsO4)3(OH)4 · 4H2O |
8.DK.12 | Bariopharmacoalumite | Ba0.5Al4(AsO4)3(OH)4 · 4H2O |
8.DK.12 | Hydroniumpharmacoalumite | (H3O)Al4(AsO4)3(OH)4 · 4.5H2O |
8.DK.15 | Burangaite | NaFe2+Al5(PO4)4(OH)6 · 2H2O |
8.DK.15 | Dufrénite | Ca0.5Fe2+Fe3+5(PO4)4(OH)6 · 2H2O |
8.DK.15 | Natrodufrénite | NaFe2+Fe3+5(PO4)4(OH)6 · 2H2O |
8.DK.15 | Gayite | NaMn2+Fe3+5(PO4)4(OH)6 · 2H2O |
8.DK.20 | Kidwellite | NaFe3+9+x(PO4)6(OH)11 · 3H2O, x = 0.33 |
8.DK.25 | Bleasdaleite | (Ca,Fe3+)2Cu5(Bi,Cu)(PO4)4(H2O,OH,Cl)13 |
8.DK.30 | Matulaite | (Fe3+,Al)Al7(PO4)4(PO3OH)2(OH)8(H2O)8 · 8H2O |
8.DK.35 | Krasnovite | Ba(Al,Mg)(PO4,CO3)(OH)2 · H2O |
Fluorescence of Matioliite
non-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 Matioliite
mindat.org URL:
https://www.mindat.org/min-27412.html
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References for Matioliite
Localities for Matioliite
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.
Austria | |
| Walter et al. (2001) |
Brazil (TL) | |
| Am.Min 91 (2006) +1 other reference |
Canada | |
| XRD and EDS analyses by Dr Anthony Kampf +1 other reference |
USA | |
| Am. Min. 91 (2006) |
Quick NavTopAbout MatioliiteUnique IdentifiersIMA Classification Classification Mineral SymbolsPhysical Properties Optical Data Chemistry Crystallography Crystal StructureX-Ray Powder DiffractionGeological EnvironmentType Occurrence SynonymsRelationshipsCommon AssociatesStrunz-MindatFluorescence Other InformationInternet Links References Localities Locality List
Gentil claim, Mendes Pimentel, Minas Gerais, Brazil