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Andradite from
Belqeys Mountain, Takab County, West Azerbaijan Province, Iran

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Predictive Mineralogy

Demantoid, etc.

Belqeys Mountain, Takab County, West Azerbaijan Province, Iran

Demantoid

Belqeys Mountain, Takab County, West Azerbaijan Province, Iran

Demantoid

Belqeys Mountain, Takab County, West Azerbaijan Province, Iran

Demantoid

Belqeys Mountain, Takab County, West Azerbaijan Province, Iran

Demantoid, etc.

Belqeys Mountain, Takab County, West Azerbaijan Province, Iran

Demantoid

Belqeys Mountain, Takab County, West Azerbaijan Province, Iran

Demantoid, etc.

Belqeys Mountain, Takab County, West Azerbaijan Province, Iran

Demantoid

Belqeys Mountain, Takab County, West Azerbaijan Province, Iran

Demantoid

Belqeys Mountain, Takab County, West Azerbaijan Province, Iran

Demantoid

Belqeys Mountain, Takab County, West Azerbaijan Province, Iran

Locality type:

Mountain

Classification

Species:

Andradite

Formula:

Ca₃Fe₂³⁺(SiO₄)₃

Chemical Analyses:

Oxide wt%:

	1
SiO₂	37.74 %
TiO₂	0.81 %
Al₂O₃	8.26 %
Cr₂O₃	2.52 %
FeO	14.00 %
MnO	0.09 %
MgO	0.46 %
CaO	34.47 %
Total:	98.35 %

Sample references:

1	-	Chegeni, K., Omran, R., Conte, M. (2021) Mineral chemistry and origin of chromium in uvarovite bearing garnets from Baba-Nazar (NE Takab). Iranian Journal of Crystallography and Mineralogy, 29 (1). 49-62

Comments:

The individual demantoid crystals from these localities can reach more than 5 cm. Even though the majority of crystals are much smaller, there are surprisingly many crystals over 2 cm, often giving nice matrix specimens. The crystals are rarely transparent, and the locality is of limited interest for the gem industry.

Quality for species:

Good crystals or rich for species - important (!)

Confirmation

Validity:

Believed Valid

Data

Mineral Data:

Click here to view Andradite data

Locality Data:

Click here to view Belqeys Mountain, Takab County, West Azerbaijan Province, Iran

Photo Gallery

View Gallery (6 photos)

Data Identifiers

Mindat Occurrence Record ID:

1009932

Long-form Identifier:

1:3:1009932:2

GUID (UUID V4):

References

Vachik Hairapetian collection

Chegeni, K., Omran, R., Conte, M. (2021) Mineral chemistry and origin of chromium in uvarovite bearing garnets from Baba-Nazar (NE Takab). Iranian Journal of Crystallography and Mineralogy, 29 (1). 49-62

Nouri, Fatemeh, Stern, Robert J., Azizi, Hossein (2022) A review of garnet deposits in western and southern Iran. International Geology Review, 64 (1) 17-44 doi:10.1080/00206814.2020.1838335

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Andradite from Belqeys Mountain, Takab County, West Azerbaijan Province, Iran

Andradite from
Belqeys Mountain, Takab County, West Azerbaijan Province, Iran