Bertossaite (original) (raw)
A valid IMA mineral species
About BertossaiteHide
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Formula:
(Li,Na)2(Ca,Fe2+,Mn2+)Al4(PO4)4(OH,F)4
Crystal System:
Orthorhombic
Name:
Named in honor of Antonio Bertossa, past director of the Geological Survey of Rwanda, the country in which it was first found. It was first recognized as an unnamed phase by von Knorring (1965) and described by von Knorring & Mrose (1966).
Unique IdentifiersHide
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Long-form identifier:
mindat:1:1:641:7
84cde0e0-dee9-4695-be9c-94cb581987bd
IMA Classification of BertossaiteHide
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IMA Formula:
Li2CaAl4(PO4)4(OH)4
Type description reference:
Classification of BertossaiteHide
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8.BH.25
8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
H : With medium-sized and large cations, (OH,etc.):RO4 = 1:1
41.7.1.2
41 : ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
7 : (AB)7(XO4)4Zq
19.8.5
19 : Phosphates
8 : Phosphates of Al and other metals
Mineral SymbolsHide
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As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference |
|---|---|---|
| Bts | 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 BertossaiteHide
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Cleavage:
Distinct/Good
(100)
Fracture:
Irregular/Uneven, Sub-Conchoidal
Density:
3.10 g/cm3 (Measured) 3.183 g/cm3 (Calculated)
Optical Data of BertossaiteHide
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RI values:
_n_α = 1.624 _n_β = 1.636 _n_γ = 1.642
δ = 0.018
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Optical Extinction:
Parallel. X = a; Y = c; Z = b.
Comments:
2Vmeas: moderately large.
Chemistry of BertossaiteHide
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Mindat Formula:
(Li,Na)2(Ca,Fe2+,Mn2+)Al4(PO4)4(OH,F)4
Chemical AnalysisHide
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Crystallography of BertossaiteHide
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Crystal System:
Orthorhombic
Class (H-M):
m m m _(_2/_m_2/_m_2/m ) - Dipyramidal
Cell Parameters:
a = 11.476(1) Å, b = 15.744(2) Å, c = 7.228(1) Å
Ratio:
a:b:c = 0.729 : 1 : 0.459
Unit Cell V:
1,305.94 ų (Calculated from Unit Cell)
Comment:
Space Group: Imcb. Cell parameters from Hatert et al. (2011).
Crystal StructureHide
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| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0018635 | Bertossaite | Hatert F, Lefevre P, Fransolet A M (2011) The crystal structure of bertossaite, CaLi2[Al4(PO4)4(OH,F)4] The Canadian Mineralogist 49 1079-1087 | 2011 | Buranga pegmatite, Rwanda | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder DiffractionHide
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Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 3.059 Å | (100) |
| 3.104 Å | (84) |
| 2.411 Å | (63) |
| 3.295 Å | (60) |
| 2.881 Å | (57) |
| 2.577 Å | (40) |
| 4.32 Å | (33) |
Geological EnvironmentHide
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Type Occurrence of BertossaiteHide
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Place of Conservation of Type Material:
Royal Museum of Central Africa, Tervuren, Belgium, RMB11232; National Museum of Natural History, Washington, D.C., USA, 141000.
Geological Setting of Type Material:
Associated Minerals at Type Locality:
Reference:
Von Knorring, O. and Mrose, M.E. (1966) Bertossaite (Li,Na)2(Ca,Fe,Mn)Al4 (PO4)(OH,F)4, a new mineral from Rwanda (Africa). (Abstr.) Canadian Mineralogist: 8: 668.
Synonyms of BertossaiteHide
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Other Language Names for BertossaiteHide
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Relationship of Bertossaite to other SpeciesHide
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Other Members of this group:
Common AssociatesHide
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Associated Minerals Based on Photo Data:
Related Minerals - Strunz-mindat GroupingHide
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| 8.BH. | Crimsonite | PbFe3+2(PO4)2(OH)2 | Orth. m m m _(_2/_m_2/_m_2/m ) : C c c m |
|---|---|---|---|
| 8.BH. | Reznitskyite | CaMg(VO4)F | Mon. 2/m : _B_2/b |
| 8.BH. | Cuprozheshengite | Pb4CuZn2(AsO4)2(PO4)2(OH)2 | Tric. 1 : _P_1 |
| 8.BH. | Zheshengite | Pb4ZnZn2(AsO4)2(PO4)2(OH)2 | Tric. 1 : _P_1 |
| 8.BH. | Peterchinite | Zn3Zn2(OH)6As[O3(OH)3] | Mon. 2/m : _B_2/m |
| 8.BH.05 | Thadeuite | Ca(Mg,Fe2+)3(PO4)2(OH,F)2 | Orth. 222 : _C_2221 |
| 8.BH.10 | Durangite | NaAl(AsO4)F | Mon. 2/m : _B_2/b |
| 8.BH.10 | Isokite | CaMg(PO4)F | Mon. 2/m : _B_2/b |
| 8.BH.10 | Lacroixite | NaAl(PO4)F | Mon. 2/m : _B_2/b |
| 8.BH.10 | Maxwellite | NaFe3+(AsO4)F | Mon. 2/m : _P_2/m |
| 8.BH.10 | Panasqueiraite | CaMg(PO4)(OH) | Mon. |
| 8.BH.10 | Kononovite | NaMg(SO4)F | Mon. 2/m : _B_2/b |
| 8.BH.10 | Arsenatrotitanite | NaTi(AsO4)O | Mon. 2/m : _B_2/b |
| 8.BH.15 | Drugmanite | Pb2Fe3+(PO4)(PO3OH)(OH)2 | Mon. 2/m : _P_21/b |
| 8.BH.20 | Bjarebyite | (Ba,Sr)(Mn2+,Fe2+,Mg)2Al2(PO4)3(OH)3 | Mon. 2/m : _P_21/m |
| 8.BH.20 | Cirrolite | Ca3Al2(PO4)3(OH)3 (?) | |
| 8.BH.20 | Kulanite | Ba(Fe2+,Mn2+,Mg)2(Al,Fe3+)2(PO4)3(OH)3 | Mon. 2/m : _P_21/m |
| 8.BH.20 | Penikisite | Ba(Mg,Fe2+,Ca)2Al2(PO4)3(OH)3 | Mon. 2/m : _P_21/m |
| 8.BH.20 | Perloffite | Ba(Mn2+,Fe2+)2Fe3+2(PO4)3(OH)3 | Mon. 2/m : _P_21/m |
| 8.BH.20 | Johntomaite | BaFe2+2Fe3+2(PO4)3(OH)3 | Mon. 2/m : _P_21/m |
| 8.BH.20 | Bjarebyite Group | ||
| 8.BH.20 | Strontioperloffite | SrMn2+2Fe3+2(PO4)3(OH)3 | Mon. 2/m : _P_21/m |
| 8.BH.20 | Plumboperloffite | PbMn2+2Fe3+2(PO4)3(OH)3 | Mon. 2/m : _P_21/m |
| 8.BH.20 | Nigelcookite | PbFe2+2V3+2(PO4)3(OH)3 | Mon. 2/m : _P_21/m |
| 8.BH.20 | Plumbojohntomaite | PbFe2+2Fe3+2(PO4)3(OH)3 | Mon. 2/m : _P_21/m |
| 8.BH.25 | Palermoite | (Li,Na)2(Sr,Ca)Al4(PO4)4(OH)4 | Orth. m m m _(_2/_m_2/_m_2/m ) |
| 8.BH.25 | Natropalermoite | Na2SrAl4(PO4)4(OH)4 | Orth. m m m _(_2/_m_2/_m_2/m ) |
| 8.BH.30 | Carminite | PbFe3+2(AsO4)2(OH)2 | Orth. m m m _(_2/_m_2/_m_2/m ) : C c c m |
| 8.BH.30 | Sewardite | CaFe3+2(AsO4)2(OH)2 | Orth. m m m _(_2/_m_2/_m_2/m ) : C c c m |
| 8.BH.35 | Adelite | CaMg(AsO4)(OH) | Orth. 222 : _P_212121 |
| 8.BH.35 | Arsendescloizite | PbZn(AsO4)(OH) | Orth. 222 : _P_212121 |
| 8.BH.35 | Austinite | CaZn(AsO4)(OH) | Orth. 222 : _P_212121 |
| 8.BH.35 | Cobaltaustinite | CaCo(AsO4)(OH) | Orth. 222 : _P_212121 |
| 8.BH.35 | Conichalcite | CaCu(AsO4)(OH) | Orth. 222 : _P_212121 |
| 8.BH.35 | Duftite | PbCu(AsO4)(OH) | Orth. 222 : _P_212121 |
| 8.BH.35 | Gabrielsonite | PbFe3+(As3+O3)O | Orth. m _m_2 : P m _c_21 |
| 8.BH.35 | Nickelaustinite | CaNi(AsO4)(OH) | Orth. 222 : _P_212121 |
| 8.BH.35 | Tangeite | CaCu(VO4)(OH) | Orth. 222 : _P_212121 |
| 8.BH.35 | Duftite-alpha | PbCu(AsO4)(OH) | |
| 8.BH.35 | Gottlobite | CaMg(VO4)(OH) | Orth. 222 : _P_212121 |
| 8.BH.35 | Hermannroseite | CaCu(PO4)(OH) | Orth. 222 : _P_212121 |
| 8.BH.40 | Čechite | PbFe2+(VO4)(OH) | Orth. m m m _(_2/_m_2/_m_2/m ) |
| 8.BH.40 | Descloizite | PbZn(VO4)(OH) | Orth. m m m _(_2/_m_2/_m_2/m ) : P n m a |
| 8.BH.40 | Mottramite | PbCu(VO4)(OH) | Orth. m m m _(_2/_m_2/_m_2/m ) : P n m a |
| 8.BH.40 | Pyrobelonite | PbMn2+(VO4)(OH) | Orth. m m m _(_2/_m_2/_m_2/m ) : P n m a |
| 8.BH.40 | Khorixasite | (Bi0.67◻0.33)Cu(VO4)(OH) | Mon. 2/m : _P_2/m |
| 8.BH.45 | Bayldonite | PbCu3(AsO4)2(OH)2 | Mon. 2/m : _B_2/b |
| 8.BH.45 | Vésigniéite | BaCu3(VO4)2(OH)2 | Mon. 2/m : _B_2/m |
| 8.BH.50 | Paganoite | NiBi(AsO4)O | Tric. 1 : _P_1 |
| 8.BH.55 | Harrisonite | Ca(Fe2+,Mg)6(PO4)2(SiO4)2 | Trig. 3_m_ _(_32/m ) : R_3_m |
| 8.BH.55 | Jagowerite | BaAl2(PO4)2(OH)2 | Tric. |
| 8.BH.60 | Attakolite | CaMn2+Al4(SiO3OH)(PO4)3(OH)4 | Mon. 2/m : _B_2/m |
| 8.BH.65 | Leningradite | PbCu3(VO4)2Cl | Orth. m m m _(_2/_m_2/_m_2/m ) : I b a m |
| 8.BH.70 | Katiarsite | KTiO(AsO4) | Orth. m _m_2 : P n _a_21 |
| 8.BH.70 | Yurgensonite | K2SnTiO2(AsO4)2 | Orth. m _m_2 : P n _a_21 |
| 8.BH.75 | Melanarsite | K3Cu7Fe3+O4(AsO4)4 | Mon. 2/m : _B_2/b |
| 8.BH.80 | Moraskoite | Na2Mg(PO4)F | Orth. m m m _(_2/_m_2/_m_2/m ) : P b c n |
| 8.BH.80 | Evseevite | Na2Mg(AsO4)F | Orth. m m m _(_2/_m_2/_m_2/m ) : P b c n |
| 8.BH.85 | Piccoliite | NaCaMn3+2(AsO4)2O(OH) | Orth. m m m _(_2/_m_2/_m_2/m ) : P b c m |
Fluorescence of BertossaiteHide
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Other InformationHide
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Notes:
Dissolves very slowly in HNO3
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 BertossaiteHide
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References for BertossaiteHide
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Localities for BertossaiteHide
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This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the 
symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
Locality ListHide
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