Pleonaste
A variety of Spinel
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About Pleonaste
Formula:
(Mg,Fe)Al2O4
Name:
From the Greek for 'abundant' for its many crystal forms.
An Fe2+-bearing (ferroan) variety of spinel, often exhibiting crystal forms more complex than the basic octahedron with crystallography exhibiting combinations of the octahedron with either the dodecahedron d{011} or more rarely the cube a{001} forms.
Visit gemdat.org for gemological information about Pleonaste.
Visit gemdat.org for gemological information about Pleonaste.Unique Identifiers
Mindat ID:
6684 (as Pleonaste)
3729 (as Spinel)
3729 (as Spinel)
Long-form identifier:
mindat:1:1:6684:2 (as Pleonaste)
mindat:1:1:3729:3 (as Spinel)
mindat:1:1:3729:3 (as Spinel)
IMA Classification of Pleonaste
IMA status notes:
Rejected by the IMA
Chemistry of Pleonaste
Mindat Formula:
(Mg,Fe)Al2O4
Element Weights:
Elements listed:
Synonyms of Pleonaste
Black Jack (in part)
Other Language Names for Pleonaste
Common Associates
Associated Minerals Based on Photo Data:
| 20 photos of Pleonaste associated with Fassaite | (Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6] |
| 17 photos of Pleonaste associated with Calcite | CaCO3 |
| 12 photos of Pleonaste associated with Diopside | CaMgSi2O6 |
| 7 photos of Pleonaste associated with Vesuvianite | Ca19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9 |
| 4 photos of Pleonaste associated with Zircon | Zr(SiO4) |
| 3 photos of Pleonaste associated with Phlogopite | KMg3(AlSi3O10)(OH)2 |
| 3 photos of Pleonaste associated with Gehlenite | Ca2Al[AlSiO7] |
| 3 photos of Pleonaste associated with Spinel | MgAl2O4 |
| 2 photos of Pleonaste associated with Sapphire | Al2O3 |
| 2 photos of Pleonaste associated with Clintonite | CaAlMg2(SiAl3O10)(OH)2 |
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 Pleonaste
mindat.org URL:
https://www.mindat.org/min-6684.html
Please feel free to link to this page.
Please feel free to link to this page.
Search Engines:
References for Pleonaste
Localities for Pleonaste
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.
Algeria | |
| - (2004, July) |
Australia | |
| Gilligan et al. (1992) |
| Brown et al. (1997) |
| Hollis et al. (1985) |
| Matthew Goodwin |
| Sutherland et al. (2003) |
| Stolz (1987) |
| J. S. Delaney et al. (1985) |
| Keller (1992) |
| Bottrill et al. (2008) |
| Dunn et al. (1913) |
| |
| Hwang et al. (1994) |
Austria | |
| Carswell et al. (1989) |
| Meixner (1976) +1 other reference |
| Brandstetter (1998) +1 other reference |
Brazil | |
| Soares et al. (2025) |
| Mesquita et al. (2017) |
| Jour. of South American Earth Sci. ... |
| de Sá et al. (2018) |
Canada | |
| Masun (1999) +1 other reference |
| Kamenetsky et al. (2013) |
| Abersteiner et al. (2020) | |
| Abersteiner et al. (2018) | |
| Montgomery (n.d.) |
China | |
| Gao et al. (2017) |
| Zhi Zhang et al. (2013) |
Czech Republic | |
| Lukas Jankaj specimen |
| Waldmann (1931) |
Finland | |
| O´Brien Hugh |
| Wilke (1976) |
France | |
| R. Pierrot |
| FORESTIER F. H. (1969) |
| LACROIX A. (1892) |
| Barrois (1887) |
Germany | |
| Weiß (1990) |
Greece | |
| Wang et al. (2017) |
Greenland | |
| Uitterdijk Appel (1997) |
Hungary | |
| Koch: Minerals of Hungary |
India | |
| Chakrapani Naidu et al. (1965) |
Ireland | |
| Nockolds et al. (1947) |
Italy | |
| Pelloux (1927) |
| Dario Di Domenico collection |
| Lapis 28 (12) |
| Maida (2002) |
| De Michele (1974) |
| De Michele (1974) | |
| De Michele (1974) | |
| De Michele (1974) |
Japan | |
| Yamada (2004) |
Madagascar | |
| Knut Edvard Larsen collection (# M-323) |
| Knut Edvard Larsen collection & photo | |
| Behier (1963) |
| Betts (n.d.) |
Myanmar | |
| Pavel M. Kartashov analytical data |
New Zealand | |
| Railton et al. (1990) |
| C. M. Ward (1984) |
Nigeria | |
| Meteoritics (ISSN 0026-1114) |
Northwest Africa Meteorites | |
| Anorthite +2 other references | |
Norway | |
| Scheerer (1845) |
| Weibye (1848) |
| Weibye (1848) |
| Scheerer (1845) | |
| Scheerer (1845) +1 other reference |
| Sturt et al. (1967) +6 other references |
Oman | |
| Meteoritical Bulletin No. 86 |
| Meteoritical Bulletin et al. (2003) | |
| - (2004, July) | |
Papua New Guinea | |
| Hulijeli et al. (2024) |
Poland | |
| Lis et al. (1986) |
| Lis et al. (1986) |
| Lis et al. (1986) |
| Lis et al. (1986) |
| Sachanbiński et al. (2000) |
| Morgan et al. (2000) |
| Morgan et al. (2000) | |
| Kozlowski A & Wiszniewska J: (2001) | |
| Morgan et al. (2000) | |
Russia | |
| Kislov et al. (2022) |
| Shevko et al. (2019, September) |
| Sklyarov +5 other references |
| Kazachenko et al. (2013) |
| Pavel.M. Kartashov (n.d.) |
| webmineral.ru (2020) | |
| Pavel.M. Kartashov (n.d.) | |
| Rezvukhin +3 other references |
Slovakia | |
| Rojkovičová |
| M. Huraiova et al. |
| Pauliš |
| Ďuďa (1993) |
| Ďuďa |
| Ďuďa |
South Africa | |
| Maier et al. (2023) |
| Scoon et al. (2002) |
| Field et al. (2008) |
| Abersteiner et al. (2019) |
| Giuliani et al. (2012) |
Spain | |
| Casillas et al. (2011) |
| Eugeni Bareche specimen |
| Nobel +11 other references |
Sri Lanka | |
| Ceylon Aluvial Mine (Book, Co. 2002) |
Suriname | |
| De Roever et al. (1976) |
Sweden | |
| |
| Nils Hollander: Electron microprobe ... |
| Sjögren (1881) |
| |
| Appel et al. (1999) |
| Magnusson (1929) |
| Sandström et al. (2009) |
Thailand | |
| Srithai (2005, November) |
UK | |
| Lenaz et al. (2016) +1 other reference |
USA | |
| Haxel et al. (2023) |
| McAllister (1955) +1 other reference |
| SDSU Geology Department unpublished ... |
| Jahns et al. (1951) |
| Kunz (1905) +1 other reference |
| Rogers | |
| Cook (1978) |
| Hopkins (1914) +1 other reference |
| GEOLOGY +4 other references |
| Jeffrey J. Agee et al. (1982) |
| Hitchcock (1841) |
| www.eos.ubc.ca (2003) |
| AmMin 27:462 |
| American Mineralogist 27:462-463 |
| Barbara A.Olsen |
| Friedman (1952) |
| Dana 6: 1077. | |
| Nielson (1973) |
| Dietrich (1990) |
| Dietrich (1990) |
| Dietrich (1990) | |
Vietnam | |
| Nguyôn et al. (2005) |
Gon phlogopite deposit, Aldan, Sakha, Russia