Gedrite Root Name Group
A group of related mineral species
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About Gedrite Root Name Group
Formula:
◻B2+2(C2+3C3+2)(Al2Si6O22)(OH)2
The gedrite 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.
Crystal System:
Orthorhombic
Member of:
Name:
Named after the type locality at Gèdres, Héas Valley, France
This page provides mineralogical data about Gedrite Root Name Group.
Unique Identifiers
Mindat ID:
8963
Long-form identifier:
mindat:1:1:8963:6
Chemistry of Gedrite Root Name Group
Mindat Formula:
◻B2+2(C2+3C3+2)(Al2Si6O22)(OH)2
The gedrite 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 gedrite 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.
Crystallography of Gedrite Root Name Group
Crystal System:
Orthorhombic
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) |
|---|---|---|---|---|---|---|---|
| 0000215 | Gedrite | Papike J J, Ross M (1970) Gedrites: Crystal structures and intracrystalline cation distributions sample 001 American Mineralogist 55 1945-1972 |  | 1970 | 0 | 293 |
CIF Raw Data - click here to close
Relationship of Gedrite 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 |
| Grunerite | ◻Fe2+2Fe2+5(Si8O22)(OH)2 | Mon. 2/m : B2/m |
| Papikeite Root Name Group | NaB2+2(C2+3Al2)(Si5Al3)O22(OH)2 | |
| Suenoite Root Name Group | ◻B2C5(Si8O22)(OH)2 |
Gedrite Root Name Group Members:
| Ferro-gedrite | ◻Fe2+2(Fe2+3Al2)(Al2Si6O22)(OH)2 | Orth. mmm(2/m2/m2/m) : Pnma |
| Gedrite | ◻Mg2(Mg3Al2)(Al2Si6O22)(OH)2 | Orth. mmm(2/m2/m2/m) |
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.
Minerals chemically related to group:
| Anthophyllite Root Name Group | ◻{B2}{C5}(Si8O22)(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.
Gedrite Root Name Group in petrology
An essential component of rock names highlighted in red, an accessory component in rock names highlighted in green.
Internet Links for Gedrite Root Name Group
mindat.org URL:
https://www.mindat.org/min-8963.html
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Please feel free to link to this page.
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Skisshyttan, Smedjebacken, Dalarna County, Sweden