Papikeite Root Name Group
A group of related mineral species
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About Papikeite Root Name Group
Formula:
NaB2+2(C2+3Al2)(Si5Al3)O22(OH)2
The papikeite minerals are orthorhombic amphiboles in the magnesium-iron-manganese amphibole subgroup defined with A(Na+K+2Ca)>0.5 apfu and C(Al+Fe3++2Ti)>1 apfu.
The individual minerals are defined based on their dominant elements in the B, C2+ and C3+ positions.
The individual minerals are defined based on their dominant elements in the B, C2+ and C3+ positions.
Papikeite root name is established in accordance with the root-name rules of the IMA2012 amphibole nomenclature and replaces the use of "sodic"-prefix for gedrite minerals.
Unique Identifiers
Mindat ID:
43389
Long-form identifier:
mindat:1:1:43389:7
IMA Classification of Papikeite Root Name Group
Pending publication
Chemistry of Papikeite Root Name Group
Mindat Formula:
NaB2+2(C2+3Al2)(Si5Al3)O22(OH)2
The papikeite minerals are orthorhombic amphiboles in the magnesium-iron-manganese amphibole subgroup defined with A(Na+K+2Ca)>0.5 apfu and C(Al+Fe3++2Ti)>1 apfu.
The individual minerals are defined based on their dominant elements in the B, C2+ and C3+ positions.
The papikeite minerals are orthorhombic amphiboles in the magnesium-iron-manganese amphibole subgroup defined with A(Na+K+2Ca)>0.5 apfu and C(Al+Fe3++2Ti)>1 apfu.
The individual minerals are defined based on their dominant elements in the B, C2+ and C3+ positions.
Relationship of Papikeite Root Name Group to other Species
Member of:
Other Members of Magnesium-iron-manganese Amphibole Subgroup:
| Anthophyllite Root Name Group | ◻{B2}{C5}(Si8O22)(OH)2 | Orth. |
| Cummingtonite | ◻Mg2Mg5(Si8O22)(OH)2 | Mon. 2/m : B2/m |
| Gedrite Root Name Group | ◻B2+2(C2+3C3+2)(Al2Si6O22)(OH)2 | Orth. |
| Grunerite | ◻Fe2+2Fe2+5(Si8O22)(OH)2 | Mon. 2/m : B2/m |
| Suenoite Root Name Group | ◻B2C5(Si8O22)(OH)2 |
Papikeite Root Name Group Members:
| Ferro-papikeite | NaFe2+2(Fe2+3Al2)(Si5Al3O22)(OH)2 | Orth. mmm(2/m2/m2/m) : Pnma |
| Papikeite | NaMg2(Mg3Al2}(Al3Si5O22)(OH)2 | Orth. mmm(2/m2/m2/m) : Pnma |
Click on any node to view relationships. Formula-derived relationship network for the group members above. Use Find related species to add formula-neighbour species outside the current group view. Solid links show inferred chemical differences; dashed violet links show same-formula crystallographic differences. Hydration states are not treated as relationship changes. These relationships do not imply any real-world substitution reactions between these species.
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 Papikeite Root Name Group
mindat.org URL:
https://www.mindat.org/min-43389.html
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References for Papikeite Root Name Group
Localities for Papikeite Root Name Group
Showing 12 localities.
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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.
Australia | |
| [Papikeite] John Walshe |
Finland | |
| [Ferro-papikeite] Probed |
Japan | |
| [Ferro-papikeite] recalculation of analysis published in Satoshi Matsubara et al (1980) |
Norway | |
| [Papikeite] Kihle et al. (2022) +1 other reference |
| [Papikeite] Kullerud et al. (2019) |
| [Papikeite] Smith (1988) |
Spain | |
| [Ferro-papikeite] Christian Rewitzer collection +1 other reference |
Sweden | |
| [Ferro-papikeite] Linthout et al. (1996) +1 other reference |
| [Ferro-papikeite] Hawthorne et al. (2022) | |
USA | |
| [Ferro-papikeite, Papikeite] |
Papikeite type locality, Ærøya, Arendal, Agder, Norway