Allanite-Epidote
A variety of Epidote
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About Allanite-Epidote
Formula:
{(Ca,REE)2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Epidote enriched with REE and Y transitive to allanite-(Ce) or -(Y). Its REE+Y content is below 0.5 apfu. Sometimes such epidotes are selectively enriched in Eu (as at the Tsakhirin Khuduk deposit in Mongolian Altai).
Unique Identifiers
Mindat ID:
11229 (as Allanite-Epidote)
1389 (as Epidote)
1389 (as Epidote)
Long-form identifier:
mindat:1:1:11229:5 (as Allanite-Epidote)
mindat:1:1:1389:1 (as Epidote)
mindat:1:1:1389:1 (as Epidote)
Chemistry of Allanite-Epidote
Mindat Formula:
{(Ca,REE)2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Element Weights:
Synonyms of Allanite-Epidote
Varieties of Allanite-Epidote
| Yttroepidote | Yttrium-bearing epidote with a Y+REE content below 0.5 apfu. Transitive to allanite-(Y). First described from Slyudorudnik, Southern Urals, in 1959. |
Common Associates
Associated Minerals Based on Photo Data:
| 2 photos of Allanite-Epidote associated with Allanite-(La) | (CaLa)(AlAlFe2+)O[Si2O7][SiO4](OH) |
| 2 photos of Allanite-Epidote associated with Diopside | CaMgSi2O6 |
| 2 photos of Allanite-Epidote associated with Magnetite | Fe2+Fe3+2O4 |
| 2 photos of Allanite-Epidote associated with Quartz | SiO2 |
| 1 photo of Allanite-Epidote associated with Microcline | K(AlSi3O8) |
| 1 photo of Allanite-Epidote associated with Titanite | CaTi(SiO4)O |
| 1 photo of Allanite-Epidote associated with Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| 1 photo of Allanite-Epidote associated with Phlogopite | KMg3(AlSi3O10)(OH)2 |
| 1 photo of Allanite-Epidote associated with Feldspar Group |
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 Allanite-Epidote
mindat.org URL:
https://www.mindat.org/min-11229.html
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Search Engines:
References for Allanite-Epidote
Localities for Allanite-Epidote
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.
Canada | |
| [var: Yttroepidote] Ercit (2002) |
Finland | |
| Al-Ani et al. (2018) |
| [var: Yttroepidote] Pavel Kartashov analytical data |
Hungary | |
| Zajzon et al. (2015) |
India | |
| www.dae.gov.in/amd/earv3.htm |
Italy | |
| www.ngu.no (n.d.) |
Mongolia | |
| Kartashov P.M. et al. (1993) |
| Pavel.M. Kartashov (n.d.) | |
Norway | |
| [var: Yttroepidote] Larsen et al. (2016) |
Russia | |
| Kovalev et al. (2024) |
| [var: Yttroepidote] Mineev D.A. (1959) |
| Rundqvist (1997) |
USA | |
| Collected by Doug Schonewald |
Slyudorudnik Mine, Kyshtym, Chelyabinsk Oblast, Russia