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Fuxian kimberlite field, Wafangdian Co., Dalian Prefecture, Liaodong Peninsula, Liaoning Province (Manchuria; Dongbei Region), China
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Diamond
Fuxian kimberlite field, Wafangdian Co., Dalian Prefecture, Liaodong Peninsula, Liaoning Province, China

Photo: Crystal Vine
 
 
Diamond deposit, located in the Fuzhou Basin in Eastern Liaoning uplift of the North China Platform. The basement rock consists of Archean granite and gneiss that is overlain by Paleozoic and Mesozoic sedimentary rock in a N-NE-trending synclinorium. Kimberlite occurs along EW striking faults in the basement and NE-striking faults in overlying rocks. The major Tanlu fault zone is the main ore-controlling structure.

Eighteen kimberlite pipes and 58 kimberlite dikes occur in the area. The pipes are complicated and irregular. Eight of them have economic grades, averaging 50 mg/m3. A maximum grade of 308 mg/m3 occurs in pipe No. 50. The kimberlite dikes occur along fractures that strike N-NE and dip at 70° to 80°. They are parallel to each other and eight of them, which are intensely carbonate-altered, bear diamonds. The richest of these dikes is no. 69, with a grade of 327 mg/m3. The diamond hardness is more than 88,000 kg/mm2. Most diamonds are transparent and with a strong adamantine luster.

Mineral List

Mineral list contains entries from the region specified including sub-localities
Anatase
Chromite
Diamond
Forsterite
Graphite
Ilmenite
var: Cr-rich Picroilmenite
var: Picroilmenite
Lindsleyite
Lonsdaleite
Moissanite
'Olivine'
Phlogopite
Pyrope
Rutile
Spinel
Sylvite
'UM2002-26-S:FeNi'
Yimengite


20 entries listed. 15 valid minerals.

Localities in this Region

China

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References

Lijian Qi, Zuojun Tang, Xinbiao Lu, Mouchun He, Fan Zhang, and Qing Miao (1999): Typomorphic peculiarities and significance of mineral inclusions in diamond in Liaoning Province, China. Journal of Gems & Gemmology 1(3).

Huifang Liu (2002): Hexagonal pentlandite and sylvite inclusions in diamond from Liaoning. Geological Science and Technology Information [Dizhi Keji Qingbao] 21(2), 51-54.

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Copyright © Jolyon Ralph and Ida Chau 1993-2014. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of thousands of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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