Potassic-ferri-sadanagaite
A named amphibole that is NOT (yet) an approved mineral species
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Formula:
{K}{Ca2}{Mg3Fe3+2}(Al3Si5O22)(OH)2
The sadanagaite group minerals are defined as with 0,5 < A(Na+K+ 2Ca) where Na or K is dominant, and with 1,5 < C(Al+Fe3++2Ti), where Al or Fe3+ are dominant. The W position may contain (OH),F or Cl.
Potassic-ferri-sadanagaite is defined with
A position: K dominant
C2+ position: Mg dominant
C3+ position: Fe dominant
W position: (OH) dominant.
Potassic-ferri-sadanagaite is defined with
A position: K dominant
C2+ position: Mg dominant
C3+ position: Fe dominant
W position: (OH) dominant.
Member of:
First Recorded Locality:
The referenced material was named potassic-ferrisadanagaite in the original description, but the analaysed material has Fe2+>>Mg, and after the redefinition of the sadanagaite group in the 2012 amphibole nomenclature, the correct name is potassic-ferro-ferri-sadanagaite.
Unique Identifiers
Mindat ID:
43452
Long-form identifier:
mindat:1:1:43452:2
GUID
(UUID V4):
(UUID V4):
810cc82b-4be6-4ec2-9c30-140e799a6b1f
IMA Classification of Potassic-ferri-sadanagaite
Pending publication
IMA status notes:
Named Amphibole
Approval history:
Unnamed, but probably valid.
Chemistry of Potassic-ferri-sadanagaite
Mindat Formula:
{K}{Ca2}{Mg3Fe3+2}(Al3Si5O22)(OH)2
The sadanagaite group minerals are defined as with 0,5 < A(Na+K+ 2Ca) where Na or K is dominant, and with 1,5 < C(Al+Fe3++2Ti), where Al or Fe3+ are dominant. The W position may contain (OH),F or Cl.
Potassic-ferri-sadanagaite is defined with
A position: K dominant
C2+ position: Mg dominant
C3+ position: Fe dominant
W position: (OH) dominant.
The sadanagaite group minerals are defined as with 0,5 < A(Na+K+ 2Ca) where Na or K is dominant, and with 1,5 < C(Al+Fe3++2Ti), where Al or Fe3+ are dominant. The W position may contain (OH),F or Cl.
Potassic-ferri-sadanagaite is defined with
A position: K dominant
C2+ position: Mg dominant
C3+ position: Fe dominant
W position: (OH) dominant.
First Recorded Occurrence of Potassic-ferri-sadanagaite
Relationship of Potassic-ferri-sadanagaite to other Species
Member of:
Other Members of this group:
Ferro-chloro-sadanagaite | {K}{Ca2}{Mg3Al2}(Al3Si5O22)Cl2 | |
Ferro-ferri-sadanagaite | {Na}{Ca2}{Fe2+3Fe3+2}(Al3Si5O22)(OH)2 | Mon. |
Ferro-sadanagaite | {Na}{Ca2}{Fe3Al2}(Al3Si5O22)(OH)2 | |
Potassic-chloro-sadanagaite | {K}{Ca2}{Mg3Al2}(Al3Si5O22)Cl2 | |
Potassic-ferro-chloro-sadanagaite | {K}{Ca2}{Fe2+3Al2}(Al3Si5O22)Cl2 | |
Potassic-ferro-ferri-sadanagaite | {K}{Ca2}{Fe2+3Fe3+2}(Al3Si5O22)(OH)2 | Mon. 2/m : B2/m |
Potassic-ferro-sadanagaite | {K}{Ca2}{Fe2+3Al2}(Al3Si5O22)(OH)2 | Mon. |
Potassic-sadanagaite | {K}{Ca2}{Mg3Al2}(Al3Si5O22)(OH)2 | Mon. 2 |
Sadanagaite | {Na}{Ca2}{Mg3Al2}(Si5Al3O22)(OH)2 | Mon. |
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 Potassic-ferri-sadanagaite
mindat.org URL:
https://www.mindat.org/min-43452.html
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Please feel free to link to this page.
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References for Potassic-ferri-sadanagaite
Reference List:
Localities for Potassic-ferri-sadanagaite
ⓘ - 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).
Struck out - Mineral was erroneously reported from this locality.
Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).
All localities listed without proper references should be considered as questionable.
All localities listed without proper references should be considered as questionable.
Japan (FRL) | |
| |
Russia | |
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