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Dakalasu No.1 pegmatite deposit, Dakalasu Mine (Dahalasu Mine), Aletai Co. (Altay Co.), Altay Prefecture (Aletai Prefecture), Ili Kazakh Autonomous Prefecture, Xinjiang, China i
Regional Level Types
Dakalasu No.1 pegmatite deposit Deposit
Dakalasu Mine (Dahalasu Mine) Mine
Aletai Co. (Altay Co.) County
Altay Prefecture (Aletai Prefecture) Prefecture
Ili Kazakh Autonomous Prefecture Prefecture
Xinjiang Autonomous Region
China Country

Regional Level Types
Dakalasu No.1 pegmatite deposit	Deposit
Dakalasu Mine (Dahalasu Mine)	Mine
Aletai Co. (Altay Co.)	County
Altay Prefecture (Aletai Prefecture)	Prefecture
Ili Kazakh Autonomous Prefecture	Prefecture
Xinjiang	Autonomous Region
China	Country

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Latitude & Longitude (WGS84):

47° 36' 42'' North , 88° 25' 40'' East

Latitude & Longitude (decimal):

Type:

Köppen climate type:

Dfb : Warm-summer humid continental climate

Nearest Settlements:

Place	Population	Distance
Altay	139,341 (2015)	34.3km

Mindat Locality ID:

420686

Long-form identifier:

mindat:1:2:420686:9

GUID (UUID V4):

The Dakalasu No.1 Be-Nb-Ta pegmatite contains 280 t BeO and 95 t (Ta + Nb)2O5 with an average grade of 0.05 % BeO and 0.02 % (Ta + Nb)2O5. The pegmatite is internally zone and hosted by a biotite granite porphyry. The No.1 pegmatite has a length of up to 200 m, and a thickness of 1.5 to 20.0 m. It dips to N310° to 320°, at an angle of 7° to 25°. The pegmatite can be divided into three zones: a medium to coarse-grained border zone, a blocky intermediate zone, and a core zone. The border zone is mainly composed of K-feldspar, quartz, muscovite, beryl, tourmaline, and fine-grained garnet. The intermediate zone mainly consists of blocky albite, quartz, muscovite, beryl (up to ten centimeters in length), as well as columbite-tantalite, tantalite, ferrocolumbite, and microlite. The core zone is featured by mega-crystal quartz, microcline, and muscovite .

This pegmatite is classified as a Be-Nb-mineralized NYF pegmatite.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.

ⓘ Beryllium

ⓘ Niobium (Columbium)

ⓘ Rare Earths

ⓘ Tantalum

Mineral List

8 valid minerals.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

ⓘ 'Biotite granite'

ⓘ Gneiss

ⓘ Granite

ⓘ 'Muscovite-biotite granite'

ⓘ 'NYF pegmatite'

ⓘ 'Pegmatite'

ⓘ 'Pegmatitic granite'

ⓘ 'Porphyry'

ⓘ Schist

ⓘ Slate

Detailed Mineral List:

ⓘ Albite

Formula: Na(AlSi₃O₈)

References:

Suo, Qingyu, Ping Shen, Yaoqing Luo, Changhao Li, Haoxuan Feng, Chong Cao, Hongdi Pan, and Yingxiong Bai. (2022) "Beryl Mineralogy and Fluid Inclusion Constraints on the Be Enrichment in the Dakalasu No.1 Pegmatite, Altai, NW China" Minerals 12, no. 4: 450. https://doi.org/10.3390/min12040450

Xia, Yong-Qi; Tuo, Ming-Jie; Li, Nuo; Madayipu, Nuerkanati; Zhang, Chao; Cheng, Li-Ning; Wang, Wen-Bo; Qi, Dong-Mei (2025) Petrogenesis and evolution of internally zoned pegmatites: A tourmaline perspective from the Dakalasu deposit, Chinese Altai. Ore Geology Reviews, 181. 106624 doi:10.1016/j.oregeorev.2025.106624

Liu, Kun; Lv, Zheng-Hang; Zhang, Hui; Tang, Yong (2025) Various beryls in pegmatite from the Chinese Altai: implications for melt differentiation and source tracing. Ore Geology Reviews, 187. 107001 doi:10.1016/j.oregeorev.2025.107001

Shen, Ping; Feng, Hao-Xuan; Li, Chang-Hao; Hattori, Keiko; Ma, Hua-Dong; Pan, Hong-Di; Wang, Wei; Luo, Yao-Qing; Suo, Qing-Yu; Chu, Xiang-Kai (2025) Large-scale Permian-Jurassic rare-metal mineralization in the Altai Orogenic Belt: A review. Ore Geology Reviews, 182. 106669 doi:10.1016/j.oregeorev.2025.106669

ⓘ 'Apatite'

Formula: Ca₅(PO₄)₃(Cl/F/OH)

References:

ⓘ Beryl

Formula: Be₃Al₂(Si₆O₁₈)

References:

ⓘ 'Columbite-(Fe)-Columbite-(Mn) Series'

References:

ⓘ 'Columbite Group'

References:

ⓘ 'Columbite-Tantalite'

References:

ⓘ 'Feldspar Group'

References:

ⓘ 'Garnet Group'

Formula: X₃Z₂(SiO₄)₃

References:

ⓘ 'K Feldspar'

References:

ⓘ Microcline

Formula: K(AlSi₃O₈)

References:

ⓘ 'Microlite Group'

Formula: A_2-mTa₂X_6-wZ_-n

References:

ⓘ Muscovite

Formula: KAl₂(AlSi₃O₁₀)(OH)₂

References:

ⓘ 'Plagioclase'

Formula: (Na,Ca)[(Si,Al)AlSi₂]O₈

References:

ⓘ Quartz

Formula: SiO₂

References:

ⓘ Rutile

Formula: TiO₂

References:

ⓘ Schorl

Formula: NaFe²⁺₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)

References:

ⓘ 'Tantalite'

Formula: (Mn,Fe)(Ta,Nb)₂O₆

References:

ⓘ 'Tapiolite'

Formula: (Fe,Mn)(Ta,Nb)₂O₆

References:

ⓘ 'Tourmaline'

Formula: AD₃G₆(T₆O₁₈)(BO₃)₃X₃Z

References:

ⓘ Zircon

Formula: Zr(SiO₄)

References:

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘ	'Microlite Group'	4.00.	A_2-mTa₂X_6-wZ_-n
ⓘ	Quartz	4.DA.05	SiO₂
ⓘ	Rutile	4.DB.05	TiO₂
Group 9 - Silicates
ⓘ	Zircon	9.AD.30	Zr(SiO₄)
ⓘ	Beryl	9.CJ.05	Be₃Al₂(Si₆O₁₈)
ⓘ	Schorl	9.CK.05	NaFe²⁺₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)
ⓘ	Muscovite	9.EC.15	KAl₂(AlSi₃O₁₀)(OH)₂
ⓘ	Microcline	9.FA.30	K(AlSi₃O₈)
ⓘ	Albite	9.FA.35	Na(AlSi₃O₈)
Unclassified
ⓘ	'Feldspar Group'	-
ⓘ	'Tantalite'	-	(Mn,Fe)(Ta,Nb)₂O₆
ⓘ	'Tapiolite'	-	(Fe,Mn)(Ta,Nb)₂O₆
ⓘ	'Tourmaline'	-	AD₃G₆(T₆O₁₈)(BO₃)₃X₃Z
ⓘ	'Columbite-(Fe)-Columbite-(Mn) Series'	-
ⓘ	'Plagioclase'	-	(Na,Ca)[(Si,Al)AlSi₂]O₈
ⓘ	'K Feldspar'	-
ⓘ	'Garnet Group'	-	X₃Z₂(SiO₄)₃
ⓘ	'Columbite-Tantalite'	-
ⓘ	'Apatite'	-	Ca₅(PO₄)₃(Cl/F/OH)
ⓘ	'Columbite Group'	-

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
H	ⓘ Schorl	NaFe₃²⁺Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)
H	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
Be	Beryllium
Be	ⓘ Beryl	Be₃Al₂(Si₆O₁₈)
B	Boron
B	ⓘ Schorl	NaFe₃²⁺Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)
B	ⓘ Tourmaline	AD₃G₆(T₆O₁₈)(BO₃)₃X₃Z
O	Oxygen
O	ⓘ Albite	Na(AlSi₃O₈)
O	ⓘ Beryl	Be₃Al₂(Si₆O₁₈)
O	ⓘ Microcline	K(AlSi₃O₈)
O	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
O	ⓘ Quartz	SiO₂
O	ⓘ Rutile	TiO₂
O	ⓘ Schorl	NaFe₃²⁺Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)
O	ⓘ Tantalite	(Mn,Fe)(Ta,Nb)₂O₆
O	ⓘ Tapiolite	(Fe,Mn)(Ta,Nb)₂O₆
O	ⓘ Tourmaline	AD₃G₆(T₆O₁₈)(BO₃)₃X₃Z
O	ⓘ Zircon	Zr(SiO₄)
O	ⓘ Columbite-(Fe)-Columbite-(Mn) Series
O	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
O	ⓘ Garnet Group	X₃Z₂(SiO₄)₃
O	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
F	Fluorine
F	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
Na	Sodium
Na	ⓘ Albite	Na(AlSi₃O₈)
Na	ⓘ Schorl	NaFe₃²⁺Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)
Na	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
Al	Aluminium
Al	ⓘ Albite	Na(AlSi₃O₈)
Al	ⓘ Beryl	Be₃Al₂(Si₆O₁₈)
Al	ⓘ Microcline	K(AlSi₃O₈)
Al	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Al	ⓘ Schorl	NaFe₃²⁺Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)
Al	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
Si	Silicon
Si	ⓘ Albite	Na(AlSi₃O₈)
Si	ⓘ Beryl	Be₃Al₂(Si₆O₁₈)
Si	ⓘ Microcline	K(AlSi₃O₈)
Si	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Si	ⓘ Quartz	SiO₂
Si	ⓘ Schorl	NaFe₃²⁺Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)
Si	ⓘ Zircon	Zr(SiO₄)
Si	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
Si	ⓘ Garnet Group	X₃Z₂(SiO₄)₃
P	Phosphorus
P	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
Cl	Chlorine
Cl	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
K	Potassium
K	ⓘ Microcline	K(AlSi₃O₈)
K	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Ca	Calcium
Ca	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
Ca	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
Ti	Titanium
Ti	ⓘ Rutile	TiO₂
Mn	Manganese
Mn	ⓘ Tantalite	(Mn,Fe)(Ta,Nb)₂O₆
Mn	ⓘ Tapiolite	(Fe,Mn)(Ta,Nb)₂O₆
Mn	ⓘ Columbite-(Fe)-Columbite-(Mn) Series
Fe	Iron
Fe	ⓘ Schorl	NaFe₃²⁺Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)
Fe	ⓘ Tantalite	(Mn,Fe)(Ta,Nb)₂O₆
Fe	ⓘ Tapiolite	(Fe,Mn)(Ta,Nb)₂O₆
Fe	ⓘ Columbite-(Fe)-Columbite-(Mn) Series
Zr	Zirconium
Zr	ⓘ Zircon	Zr(SiO₄)
Nb	Niobium
Nb	ⓘ Tantalite	(Mn,Fe)(Ta,Nb)₂O₆
Nb	ⓘ Tapiolite	(Fe,Mn)(Ta,Nb)₂O₆
Nb	ⓘ Columbite-(Fe)-Columbite-(Mn) Series
Ta	Tantalum
Ta	ⓘ Microlite Group	A_2-mTa₂X_6-wZ_-n
Ta	ⓘ Tantalite	(Mn,Fe)(Ta,Nb)₂O₆
Ta	ⓘ Tapiolite	(Fe,Mn)(Ta,Nb)₂O₆

Other Regions, Features and Areas containing this locality

AsiaContinent

China

Altay Li Mineral BeltMineral Belt

Eurasian PlateTectonic Plate

Irtysh-Zaisan Fold BeltOrogenic Belt

TurkestanArea

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

[1]Xia, Yong-Qi; Tuo, Ming-Jie; Li, Nuo; Madayipu, Nuerkanati; Zhang, Chao; Cheng, Li-Ning; Wang, Wen-Bo; Qi, Dong-Mei (2025) Petrogenesis and evolution of internally zoned pegmatites: A tourmaline perspective from the Dakalasu deposit, Chinese Altai. Ore Geology Reviews, 181. 106624 doi:10.1016/j.oregeorev.2025.106624

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