Nordstrandite
A valid IMA mineral species - grandfathered
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About Nordstrandite
Robert A. "Bucco" Van Nordstrand
Formula:
Al(OH)3
Colour:
colorless, coral pink and reddish brown
Lustre:
Vitreous, Pearly
Hardness:
3
Specific Gravity:
2.43 - 2.436
Crystal System:
Triclinic
Name:
For Robert A. Van Nordstrand (Feb. 17, 1918 - Feb. 6, 2000 San Rafael Marin County California, USA), Sinclair Research Laboratories, Harvey, Illinois, USA, who synthesized the compound in 1956, later named for him, then transferred to the natural mineral.
Co-Type Localities:
Polymorph of:
This page provides mineralogical data about Nordstrandite.
Unique Identifiers
Mindat ID:
2930
Long-form identifier:
mindat:1:1:2930:4
GUID
(UUID V4):
(UUID V4):
7da6548b-ad2d-49ec-aea6-34fa30e772bc
IMA Classification of Nordstrandite
Approved, 'Grandfathered' (first described prior to 1959)
Classification of Nordstrandite
4.FE.10
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
F : Hydroxides (without V or U)
E : Hydroxides with OH, without H2O; sheets of edge-sharing octahedra
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
F : Hydroxides (without V or U)
E : Hydroxides with OH, without H2O; sheets of edge-sharing octahedra
6.3.3.1
6 : HYDROXIDES AND OXIDES CONTAINING HYDROXYL
3 : X(OH)3
6 : HYDROXIDES AND OXIDES CONTAINING HYDROXYL
3 : X(OH)3
7.6.6
7 : Oxides and Hydroxides
6 : Oxides of Al
7 : Oxides and Hydroxides
6 : Oxides of Al
Mineral Symbols
As of 2021 there are now IMAâCNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
Please only use the official IMAâCNMNC symbol. Older variants are listed for historical use only.
Please only use the official IMAâCNMNC symbol. Older variants are listed for historical use only.
| Symbol | Source | Reference |
|---|---|---|
| Nsd | IMAâCNMNC | Warr, L.N. (2021). IMAâCNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
| Nsd | Warr (2020) | Warr, L.N. (2020) Recommended abbreviations for the names of clay minerals and associated phases. Clay Minerals, 55, 261â264 doi:10.1180/clm.2020.30 |
Physical Properties of Nordstrandite
Vitreous, Pearly
Transparency:
Transparent, Opaque
Comment:
pearly on cleavage
Colour:
colorless, coral pink and reddish brown
Comment:
reddish brown due to included goethite
Hardness:
3 on Mohs scale
Cleavage:
Perfect
basal {110}
basal {110}
Density:
2.43 - 2.436 g/cm3 (Measured) 2.45 g/cm3 (Calculated)
Optical Data of Nordstrandite
Type:
Biaxial (+)
RI values:
nα = 1.580(4) nβ = 1.580(4) nγ = 1.596(4)
2V:
Measured: 24° , Calculated: 44°
Max Birefringence:
δ = 0.016
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 moderate
Chemistry of Nordstrandite
Mindat Formula:
Al(OH)3
Elements listed:
Crystallography of Nordstrandite
Crystal System:
Triclinic
Class (H-M):
1 - Pedial
Space Group:
P1
Cell Parameters:
a = 5.08 Å, b = 5.12 Å, c = 4.98 Å
α = 93.67°, β = 118.92°, γ = 70.27°
α = 93.67°, β = 118.92°, γ = 70.27°
Ratio:
a:b:c = 0.992 : 1 : 0.973
Unit Cell V:
105.94 Ă
Âł (Calculated from Unit Cell)
Z:
4
Morphology:
thick tabular crystals.
Comment:
Non-standard unit-cell setting
Crystal Structure
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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) |
|---|---|---|---|---|---|---|---|
| 0009375 | Nordstrandite | Bosmans H J (1970) Unit cell and crystal structure of nordstrandite, Al(OH)3 Acta Crystallographica B26 649-652 |  | 1970 | synthetic | 0 | 293 |
| 0014701 | Nordstrandite | Saalfeld H, Jarchow O (1968) Die Kristallstruktur von Nordstrandit, Al(OH)3 Neues Jahrbuch fur Mineralogie, Abhandlungen 109 185-191 | 1968 | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 4.789 Ă | (100) |
| 4.322 Ă | (12) |
| 4.207 Ă | (10) |
| 2.392 Ă | (9) |
| 2.263 Ă | (15) |
| 2.016 Ă | (8) |
| 1.9008 Ă | (8) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 7: Great Oxidation Event | <2.4 |
| 47a : [Near-surface hydration of prior minerals] |
Geological Setting:
karsts
Type Occurrence of Nordstrandite
Co-Type Localities:
Place of Conservation of Type Material:
Royal Ontario Museum, Toronto, Canada, M145608; Harvard University, Cambridge, Massachusetts, 108353; National Museum of Natural History, Washington, D.C., USA, 117275, 145608.
Geological Setting of Type Material:
sinkholes in limestones
Synonyms of Nordstrandite
Other Language Names for Nordstrandite
German:Nordstrandit
Randomit
Randomit
Russian:ĐĐŸŃĐŽŃŃŃĐ°ĐœĐŽĐžŃ
Simplified Chinese:ćèŻșäžæ°Žéçł
Spanish:Nordstrandita
Randomita
Randomita
Common Associates
Associated Minerals Based on Photo Data:
| 18 photos of Nordstrandite associated with Phillipsite-K | (K,Na,Ca0.5,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2O |
| 10 photos of Nordstrandite associated with Phillipsite Subgroup | |
| 10 photos of Nordstrandite associated with Calcite | CaCO3 |
| 7 photos of Nordstrandite associated with Dawsonite | NaAlCO3(OH)2 |
| 7 photos of Nordstrandite associated with Baryte | BaSO4 |
| 6 photos of Nordstrandite associated with Hydrotalcite | Mg6Al2(CO3)(OH)16 · 4H2O |
| 4 photos of Nordstrandite associated with Gonnardite | (Na,Ca)2(Si,Al)5O10 · 3H2O |
| 3 photos of Nordstrandite associated with Böhmite | AlO(OH) |
| 2 photos of Nordstrandite associated with Quartz | SiO2 |
| 2 photos of Nordstrandite associated with Annite | KFe2+3(AlSi3O10)(OH)2 |
Related Minerals - Strunz-mindat Grouping
| 4.FE.05 | Amakinite | Fe2+(OH)2 |
| 4.FE.05 | Brucite | Mg(OH)2 |
| 4.FE.05 | Portlandite | Ca(OH)2 |
| 4.FE.05 | Pyrochroite | Mn(OH)2 |
| 4.FE.05 | Theophrastite | Ni(OH)2 |
| 4.FE.10 | Bayerite | Al(OH)3 |
| 4.FE.10 | Doyleite | Al(OH)3 |
| 4.FE.10 | Gibbsite | Al(OH)3 |
| 4.FE.15 | Böhmite | AlO(OH) |
| 4.FE.15 | Lepidocrocite | Îł-Fe3+O(OH) |
| 4.FE.20 | Grimaldiite | CrO(OH) |
| 4.FE.20 | Heterogenite | Co3+O(OH) |
| 4.FE.25 | Feitknechtite | Mn3+O(OH) |
| 4.FE.25 | Lithiophorite | (Al,Li)MnO2(OH)2 |
| 4.FE.30 | Quenselite | PbMnO2(OH) |
| 4.FE.35 | Ferrihydrite | Fe3+10O14(OH)2 |
| 4.FE.40 | Feroxyhyte | Fe3+O(OH) |
| 4.FE.40 | Vernadite | (Mn4+,Fe3+,Ca,Na)(O,OH)2 · nH2O |
| 4.FE.45 | Quetzalcoatlite | Zn6Cu3(TeO6)2(OH)6 · AgxPbyClx+2y |
| 4.FE.50 | Fuettererite | Pb3Cu2+6Te6+O6(OH)7Cl5 |
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 Nordstrandite
mindat.org URL:
https://www.mindat.org/min-2930.html
Please feel free to link to this page.
Please feel free to link to this page.
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External Links:
Mineral Dealers:
References for Nordstrandite
Localities for Nordstrandite
symbol to view information about a locality.
The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
â - 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.
Australia | |
| Goldbery et al. (1970) +1 other reference | |
| Grubb (1971) |
Austria | |
| Pichler (2009) |
| GOLDMANN et al. (2008) |
| Walter (2009) |
| Alker et al. (1981) +2 other references |
Bolivia | |
| Alfredo Petrov collection +1 other reference |
Brazil | |
| Norberto Dani et al (2001) |
Canada | |
| Canadian Museum of Nature collection |
| Piilonen et al. (2022) | |
| 162-165. +1 other reference |
| Sabina (1982) |
| Chao et al. (1982) +1 other reference |
| HORVĂTH (2010) |
| Tarassoff collection |
| Egan (1986) |
Croatia | |
| TomaĆĄiÄ et al. (2021) |
Czech Republic | |
| Č +4 other references |
| Sejkora J. et al. (ÄeskĂĄ republika) |
| P.PauliĆĄ et al. (2017) |
Germany | |
| Wittern (2001) |
| Henrich (1998) |
| Schnorrer-Köhler (1991) |
| Hentschel |
| Hentschel (1989) |
| Witzke (1994) |
| www.researchgate.net (n.d.) +1 other reference |
Greece | |
| |
Greenland | |
| Petersen et al. (1976) +1 other reference |
Hungary | |
| KovĂĄcs-PĂĄlffy et al. (2008) |
| SzakĂĄll S. +1 other reference | |
Italy | |
| analysed by Dr. Anthony Kampf |
| Vannucci S. â (1975) |
| Exel (1987) | |
| Orlandi et al. (1994) +1 other reference |
| Orlandi et al. (2009) |
| Orlandi et al. (2009) |
| Orlandi et al. (1989) |
| Orlandi et al. (2009) | |
| Orlandi et al. (2002) |
| Saccardo et al. (2002) +3 other references |
Jamaica | |
Japan | |
| Hori +1 other reference |
Kazakhstan | |
| Evseev (1995) |
Lebanon | |
| Kruszewski et al. (South Lebanon) |
Malaysia (TL) | |
| Wall J R D et al. (1962) |
Mauritania | |
| Matton et al. (2014) |
| Un Processus Alcalin PĂ©ri-Atlantiqu. ... +1 other reference | |
Mexico | |
| Gazquez et al. (1) |
Montenegro | |
Norway | |
| Larsen et al. (2010) |
| Larsen et al. (2010) | |
| Larsen et al. (1991) |
| Larsen et al. (2010) |
| Peter Andresen collection +1 other reference |
| Peter Andresen collection. | |
| Knut Edvard Larsen collection # MM- 6310 ( Ex- Svein A Berge collection 2010) | |
| Knut Edvard Larsen collection # MM- ... |
Poland | |
| Ćukasz Kruszewski (2012) |
| Kruszewski et al. (2018) |
Russia | |
| webmineral.ru (2016) |
| rruff.geo.arizona.edu (n.d.) |
| Lapis 29 (1) |
| Zaitsev et al. (1992) +2 other references | |
| Ivanyuk et al. (2017) |
| ... +1 other reference | |
| ... |
| Specimen from Dr. Igor Pekov | |
Spain | |
| Onac et al. (2014) +1 other reference |
| Strasser et al. (2006) |
| Bareche (2005) |
UK | |
| rruff.geo.arizona.edu (n.d.) |
USA | |
| AmMin 60:285 |
| Eckel et al. (1997) |
| Milton (1977) +1 other reference | |
| Nature (1962) +1 other reference |
| Hathaway et al. (1965) |
| Gobla (2012) |
| NMBMMR New Mexico Mineral symposium (2002) |
| Jerry Cone Collection |
| Bullock (1981) |
Vietnam | |
| DumaĆska-SĆowik et al. (2023) |
| Khoi et al. (2011) |
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Stradner Kogel, Wilhelmsdorf, Bad Gleichenberg, SĂŒdoststeiermark District, Styria, Austria