Panasqueiraite
A valid IMA mineral species
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About Panasqueiraite
Formula:
CaMg(PO4)(OH,F)
Colour:
Pink
Lustre:
Vitreous
Hardness:
5
Specific Gravity:
3.22
Crystal System:
Monoclinic
Member of:
Name:
Named for the type locality of Panasqueira, Portugal.
Tilasite Group, OH-analogue of isokite.
Extremely rare; most of samples are in fact triplite or other visually similar phosphates (Mila et al., 2014).
Extremely rare; most of samples are in fact triplite or other visually similar phosphates (Mila et al., 2014).
Unique Identifiers
Mindat ID:
3073
Long-form identifier:
mindat:1:1:3073:7
GUID
(UUID V4):
(UUID V4):
335c8fa1-9db1-4cc7-b235-a1bab672c315
IMA Classification of Panasqueiraite
Approved
IMA Formula:
CaMg(PO4)(OH)
Approval year:
1978
First published:
1981
Classification of Panasqueiraite
8.BH.10
8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
H : With medium-sized and large cations, (OH,etc.):RO4 = 1:1
8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
H : With medium-sized and large cations, (OH,etc.):RO4 = 1:1
41.5.6.3
41 : ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
5 : (AB)2(XO4)Zq
41 : ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
5 : (AB)2(XO4)Zq
22.1.12
22 : Phosphates, Arsenates or Vanadates with other Anions
1 : Phosphates, arsenates or vanadates with fluoride
22 : Phosphates, Arsenates or Vanadates with other Anions
1 : Phosphates, arsenates or vanadates with fluoride
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 |
|---|---|---|
| Psq | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Pronunciation of Panasqueiraite
Pronunciation:
| Play | Recorded by | Country |
|---|---|---|
| Jolyon Ralph | United Kingdom |
Physical Properties of Panasqueiraite
Vitreous
Transparency:
Translucent
Colour:
Pink
Streak:
White
Hardness:
5 on Mohs scale
Cleavage:
Poor/Indistinct
{010} poor.
{010} poor.
Density:
3.22 g/cm3 (Measured) 3.21 g/cm3 (Calculated)
Optical Data of Panasqueiraite
Type:
Biaxial (+)
RI values:
nα = 1.590(2) nβ = 1.596(2) nγ = 1.616(2)
2V:
Measured: 51° (2), Calculated: 58°
Max Birefringence:
δ = 0.026
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 distinct
Pleochroism:
Non-pleochroic
Chemistry of Panasqueiraite
Mindat Formula:
CaMg(PO4)(OH,F)
Crystallography of Panasqueiraite
Crystal System:
Monoclinic
Cell Parameters:
a = 6.535(3) Å, b = 8.753(4) Å, c = 6.919(4) Å
β = 112.33(4)°
β = 112.33(4)°
Ratio:
a:b:c = 0.747 : 1 : 0.79
Unit Cell V:
366.09 ų (Calculated from Unit Cell)
Z:
4
Comment:
Point Group: 2/m or m.; Space Group: C2/c or Cc
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 3.20 Å | (67) |
| 3.02 Å | (86) |
| 2.783 Å | (31) |
| 2.626 Å | (100) |
| 2.584 Å | (45) |
| 1.722 Å | (33) |
| 1.658 Å | (30) |
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) | |
| Stage 4b: Highly evolved igneous rocks | >3.0 |
| 34 : Complex granite pegmatites |
Type Occurrence of Panasqueiraite
General Appearance of Type Material:
Massive fined grained aggregates
Place of Conservation of Type Material:
Department of Geological Sciences, University of Michigan, Ann Arbor, Michigan.
National Museum of Natural History, Washington, D.C., USA, 144521.
National Museum of Natural History, Washington, D.C., USA, 144521.
Geological Setting of Type Material:
Hydrothermal tin-tungsten deposit.
Reference:
Isaacs, A.M., Peacor, D.R. (1981) Panasqueiraite, a new mineral: the OH-equivalent of isokite. Canadian Mineralogist: 19: 389-392.
Synonyms of Panasqueiraite
Other Language Names for Panasqueiraite
German:Panasqueirait
Spanish:Panasqueiraita
Relationship of Panasqueiraite to other Species
Member of:
Other Members of this group:
| Arsenatrotitanite | NaTi(AsO4)O | Mon. 2/m : B2/b |
| Durangite | NaAl(AsO4)F | Mon. 2/m : B2/b |
| Isokite | CaMg(PO4)F | Mon. 2/m : B2/b |
| Kononovite | NaMg(SO4)F | Mon. 2/m : B2/b |
| Lacroixite | NaAl(PO4)F | Mon. 2/m : B2/b |
| Maxwellite | NaFe3+(AsO4)F | Mon. 2/m : P2/m |
| Reznitskyite | CaMg(VO4)F | Mon. 2/m : B2/b |
| Tilasite | CaMg(AsO4)F | Mon. |
| Tilasite-Isokite Series |
Common Associates
Associated Minerals Based on Photo Data:
| 7 photos of Panasqueiraite associated with Quartz | SiO2 |
| 3 photos of Panasqueiraite associated with Ferberite | FeWO4 |
| 3 photos of Panasqueiraite associated with Wagnerite | (Mg,Fe2+)2(PO4)F |
| 3 photos of Panasqueiraite associated with Chalcopyrite | CuFeS2 |
| 3 photos of Panasqueiraite associated with Muscovite | KAl2(AlSi3O10)(OH)2 |
| 3 photos of Panasqueiraite associated with Triplite | Mn2+2(PO4)F |
| 2 photos of Panasqueiraite associated with Arsenopyrite | FeAsS |
| 1 photo of Panasqueiraite associated with Siderite | FeCO3 |
| 1 photo of Panasqueiraite associated with Pyrite | FeS2 |
Related Minerals - Strunz-mindat Grouping
| 8.BH. | Crimsonite | PbFe3+2(PO4)2(OH)2 |
| 8.BH. | Reznitskyite | CaMg(VO4)F |
| 8.BH. | Cuprozheshengite | Pb4CuZn2(AsO4)2(PO4)2(OH)2 |
| 8.BH. | Zheshengite | Pb4ZnZn2(AsO4)2(PO4)2(OH)2 |
| 8.BH. | Peterchinite | Zn3Zn2(OH)6As[O3(OH)3] |
| 8.BH.05 | Thadeuite | Ca(Mg,Fe2+)3(PO4)2(OH,F)2 |
| 8.BH.10 | Durangite | NaAl(AsO4)F |
| 8.BH.10 | Isokite | CaMg(PO4)F |
| 8.BH.10 | Lacroixite | NaAl(PO4)F |
| 8.BH.10 | Maxwellite | NaFe3+(AsO4)F |
| 8.BH.10 | Kononovite | NaMg(SO4)F |
| 8.BH.10 | Arsenatrotitanite | NaTi(AsO4)O |
| 8.BH.15 | Drugmanite | Pb2(Fe3+,Al)(PO4)(PO3OH)(OH)2 |
| 8.BH.20 | Bjarebyite | (Ba,Sr)(Mn2+,Fe2+,Mg)2Al2(PO4)3(OH)3 |
| 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 |
| 8.BH.20 | Penikisite | Ba(Mg,Fe2+,Ca)2Al2(PO4)3(OH)3 |
| 8.BH.20 | Perloffite | Ba(Mn2+,Fe2+)2Fe3+2(PO4)3(OH)3 |
| 8.BH.20 | Johntomaite | BaFe2+2Fe3+2(PO4)3(OH)3 |
| 8.BH.20 | Bjarebyite Group | |
| 8.BH.20 | Strontioperloffite | SrMn2+2Fe3+2(PO4)3(OH)3 |
| 8.BH.20 | Plumboperloffite | PbMn2+2Fe3+2(PO4)3(OH)3 |
| 8.BH.25 | Bertossaite | (Li,Na)2(Ca,Fe2+,Mn2+)Al4(PO4)4(OH,F)4 |
| 8.BH.25 | Palermoite | (Li,Na)2(Sr,Ca)Al4(PO4)4(OH)4 |
| 8.BH.25 | Natropalermoite | Na2SrAl4(PO4)4(OH)4 |
| 8.BH.30 | Carminite | PbFe3+2(AsO4)2(OH)2 |
| 8.BH.30 | Sewardite | CaFe3+2(AsO4)2(OH)2 |
| 8.BH.35 | Adelite | CaMg(AsO4)(OH) |
| 8.BH.35 | Arsendescloizite | PbZn(AsO4)(OH) |
| 8.BH.35 | Austinite | CaZn(AsO4)(OH) |
| 8.BH.35 | Cobaltaustinite | CaCo(AsO4)(OH) |
| 8.BH.35 | Conichalcite | CaCu(AsO4)(OH) |
| 8.BH.35 | Duftite | PbCu(AsO4)(OH) |
| 8.BH.35 | Gabrielsonite | PbFe3+(As3+O3)O |
| 8.BH.35 | Nickelaustinite | CaNi(AsO4)(OH) |
| 8.BH.35 | Tangeite | CaCu(VO4)(OH) |
| 8.BH.35 | Duftite-alpha | PbCu(AsO4)(OH) |
| 8.BH.35 | Gottlobite | CaMg(VO4)(OH) |
| 8.BH.35 | Hermannroseite | CaCu(PO4)(OH) |
| 8.BH.40 | Čechite | PbFe2+(VO4)(OH) |
| 8.BH.40 | Descloizite | PbZn(VO4)(OH) |
| 8.BH.40 | Mottramite | PbCu(VO4)(OH) |
| 8.BH.40 | Pyrobelonite | PbMn2+(VO4)(OH) |
| 8.BH.40 | Khorixasite | (Bi0.67◻0.33)Cu(VO4)(OH) |
| 8.BH.45 | Bayldonite | PbCu3(AsO4)2(OH)2 |
| 8.BH.45 | Vésigniéite | BaCu3(VO4)2(OH)2 |
| 8.BH.50 | Paganoite | NiBi(AsO4)O |
| 8.BH.55 | Harrisonite | Ca(Fe2+,Mg)6(PO4)2(SiO4)2 |
| 8.BH.55 | Jagowerite | BaAl2(PO4)2(OH)2 |
| 8.BH.60 | Attakolite | CaMn2+Al4(SiO3OH)(PO4)3(OH)4 |
| 8.BH.65 | Leningradite | PbCu3(VO4)2Cl |
| 8.BH.70 | Katiarsite | KTiO(AsO4) |
| 8.BH.70 | Yurgensonite | K2SnTiO2(AsO4)2 |
| 8.BH.75 | Melanarsite | K3Cu7Fe3+O4(AsO4)4 |
| 8.BH.80 | Moraskoite | Na2Mg(PO4)F |
| 8.BH.80 | Evseevite | Na2Mg(AsO4)F |
| 8.BH.85 | Piccoliite | NaCaMn3+2(AsO4)2O(OH) |
Fluorescence of Panasqueiraite
None.
Other Information
Notes:
Blue cathodoluminescence in an electron beam at a 12 kV potential.
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 Panasqueiraite
mindat.org URL:
https://www.mindat.org/min-3073.html
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References for Panasqueiraite
Localities for Panasqueiraite
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.
Portugal | |
| |
| American Mineralogist +2 other references |
USA | |
| Gammons et al. (2020) |
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Panasqueira Mines, São Jorge da Beira, Covilhã, Castelo Branco, Portugal