Bøggildite
A valid IMA mineral species - grandfathered
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About Bøggildite
Formula:
Na2Sr2Al2PO4F9
Colour:
Translucent flesh red
Lustre:
Vitreous, Greasy
Hardness:
4 - 5
Specific Gravity:
3.66
Crystal System:
Monoclinic
Name:
Named in honor of Ove Balthasar Bøggild (1872–1956), Danish geologist, mineralogist and crystallographer.
Ove Balthasar Bøggild was born on May 16, 1872 in Jetsmark (Jutland, Denmark). He studied in Aalborg from 1890 to 1896. That year he became assistant at the Museum of Minerals, and in 1904 associate professor of geology and mineralogy at the Polyteknisk Læreanstalt in Copenhagen (Denmark). After Niels Viggo Ussing passed away in 1912, he was appointed professor of mineralogy at the University of Copenhagen and Director of the Museum of Minerals, until his retirement in 1942.
The description of the minerals of Greenland, including several new ones, was an important part of his scientific work. His magnum opus is Mineralogia groenlandica, published in 1905. An extended and updated edition of this work, entitled "The Mineralogy of Greenland", was published in English in 1953. Ove Bøggild passed away on November 13, 1956 in Copenhagen.
Ove Balthasar Bøggild was born on May 16, 1872 in Jetsmark (Jutland, Denmark). He studied in Aalborg from 1890 to 1896. That year he became assistant at the Museum of Minerals, and in 1904 associate professor of geology and mineralogy at the Polyteknisk Læreanstalt in Copenhagen (Denmark). After Niels Viggo Ussing passed away in 1912, he was appointed professor of mineralogy at the University of Copenhagen and Director of the Museum of Minerals, until his retirement in 1942.
The description of the minerals of Greenland, including several new ones, was an important part of his scientific work. His magnum opus is Mineralogia groenlandica, published in 1905. An extended and updated edition of this work, entitled "The Mineralogy of Greenland", was published in English in 1953. Ove Bøggild passed away on November 13, 1956 in Copenhagen.
This page provides mineralogical data about Bøggildite.
Unique Identifiers
Mindat ID:
703
Long-form identifier:
mindat:1:1:703:6
IMA Classification of Bøggildite
Approved, 'Grandfathered' (first described prior to 1959)
IMA Formula:
Na2Sr2Al2(PO4)F9
Classification of Bøggildite
3.CG.20
3 : HALIDES
C : Complex halides
G : Aluminofluorides with CO3, SO4, PO4
3 : HALIDES
C : Complex halides
G : Aluminofluorides with CO3, SO4, PO4
12.1.6.1
12 : COMPOUND HALIDES
1 : Miscellaneous
12 : COMPOUND HALIDES
1 : Miscellaneous
22.1.17
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 |
|---|---|---|
| Bgg | 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 Bøggildite
Vitreous, Greasy
Transparency:
Translucent
Comment:
greasy on fracture surfaces
Colour:
Translucent flesh red
Hardness:
4 - 5 on Mohs scale
Cleavage:
Poor/Indistinct
Prismatic, possible.
Prismatic, possible.
Comment:
Fracture: even
Density:
3.66 g/cm3 (Measured) 3.692 g/cm3 (Calculated)
Optical Data of Bøggildite
Type:
Biaxial (+)
RI values:
nα = 1.462 nβ = 1.466 nγ = 1.469
2V:
Measured: 78° to 80°, Calculated: 80°
Max. Birefringence:
δ = 0.007
Based on recorded range of RI values above.
Based on recorded range of RI values above.
Interference Colours:
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars.
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars.
Surface Relief:
Moderate
Dispersion:
r > v strong
Chemistry of Bøggildite
Mindat Formula:
Na2Sr2Al2PO4F9
Element Weights:
Crystallography of Bøggildite
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/b
Setting:
P21/c
Cell Parameters:
a = 5.251(3) Å, b = 10.464(5) Å, c = 18.577(9) Å
β = 107.53(3)°
β = 107.53(3)°
Ratio:
a:b:c = 0.502 : 1 : 1.775
Unit Cell V:
973.34 ų (Calculated from Unit Cell)
Z:
4
Twinning:
Polysynthetic, twin plane {001}, common
Comment:
pseudo-orthorhombic.
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 3.162 Å | (100) |
| 3.893 Å | (80) |
| 3.96 Å | (65) |
| 3.127 Å | (65) |
| 2.627 Å | (65) |
| 2.878 Å | (50) |
| 2.865 Å | (50) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 7: Great Oxidation Event | <2.4 |
| 47c : [Carbonates, phosphates, borates, nitrates] | |
| 47g : [Halogen-bearing surface weathering minerals] |
Type Occurrence of Bøggildite
General Appearance of Type Material:
columnar crystal aggregates, individual crystals prismatic with nearly square outline, to 12 mm
Place of Conservation of Type Material:
University of Copenhagen, Copenhagen, Denmark, 1857.155a
Geological Setting of Type Material:
within greisen formed at the contact zone of a cryolite ore body
Associated Minerals at Type Locality:
Other Language Names for Bøggildite
Common Associates
Associated Minerals Based on Photo Data:
| 1 photo of Bøggildite associated with Sphalerite | ZnS |
Related Minerals - Strunz-mindat Grouping
| 3.CG.3.CG. | Chukhrovite-(Ca) | Ca3Ca1.5Al2(SO4)F13 · 12H2O |
| 3.CG.05 | Stenonite | Sr2Al(CO3)F5 |
| 3.CG.10 | Meniaylovite | Ca4[(SO4)(SiF6)(AlF6)]F · 12H2O |
| 3.CG.10 | Chukhrovite-(Ce) | Ca3CeAl2(SO4)F13 · 12H2O |
| 3.CG.10 | Chukhrovite-(Y) | Ca3YAl2(SO4)F13 · 12H2O |
| 3.CG.10 | Chukhrovite-(Nd) | Ca3NdAl2(SO4)F13 · 12H2O |
| 3.CG.15 | Creedite | Ca3Al2(SO4)(OH)2F8 · 2H2O |
| 3.CG.25 | Thermessaite-(NH4) | (NH4)2AlF3(SO4) |
| 3.CG.25 | Thermessaite | K2AlF3(SO4) |
| 3.CG.30 | Kruijenite | Ca4Al4(SO4)F2(OH)16 · 2H2O |
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 Bøggildite
mindat.org URL:
https://www.mindat.org/min-703.html
Please feel free to link to this page.
Please feel free to link to this page.
Search Engines:
External Links:
References for Bøggildite
Localities for Bøggildite
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.
Greenland (TL) | |
| Nielsen (1954) +2 other references |
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Ivigtut Mine, Ivigtut stock, Arsuk Fjord, Sermersooq, Greenland