Vote for your favorite mineral in #MinCup26! - Quartz vs. Asagiite
It's a classic vs a newbie as the most common named mineral in the crust Quartz is up against an exceedingly-rare sea foam-green mineral discovered just a few years ago Asagiite.
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Hornblende from
Jiama Cu-polymetallic deposit (Gyama Cu-polymetallic deposit; Jiamachikang Cu-polymetallic deposit), Maizhokunggar Co. (Mozhugongka Co.), Lhasa, Tibet, China


Locality type:Deposit
Classification
Species:Calcium Amphibole Subgroup var: Hornblende
Formula:AnCa2(Z2+5-mZm3+)(Si8-(n+m)Al(n+m))(OH,F,Cl)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Hornblende data
Locality Data:Click here to view Jiama Cu-polymetallic deposit (Gyama Cu-polymetallic deposit; Jiamachikang Cu-polymetallic deposit), Maizhokunggar Co. (Mozhugongka Co.), Lhasa, Tibet, China
Data Identifiers
Mindat Occurrence Record ID:1734575
Long-form Identifier:1:3:1734575:2
GUID (UUID V4):0
Localities for Hornblende in this Region
Zegulangbei deposit, Jiama Cu-polymetallic deposit (Gyama Cu-polymetallic deposit; Jiamachikang Cu-polymetallic deposit), Maizhokunggar Co. (Mozhugongka Co.), Lhasa, Tibet, China
Nearest other occurrences of Hornblende
7.1km (4.4 miles) ⓘZegulangbei deposit, Jiama Cu-polymetallic deposit (Gyama Cu-polymetallic deposit; Jiamachikang Cu-polymetallic deposit), Maizhokunggar Co. (Mozhugongka Co.), Lhasa, Tibet, China
21.7km (13.5 miles) ⓘBangpu Mo-Cu-polymetallic deposit, Maizhokunggar Co. (Mozhugongka Co.), Lhasa, Tibet, China
44.6km (27.7 miles) ⓘNuri Cu-Mo-W deposit, Nêdong Co. (Naidong Co.; Zedang Co.), Shannan Prefecture (Lhokha Prefecture; Lhoka Prefecture), Tibet, China
79.2km (49.2 miles) ⓘDemingding Mo-Cu deposit, Gyaca Co. (Jiacha Co.), Shannan Prefecture (Lhokha Prefecture; Lhoka Prefecture), Tibet, China
References
Sun, Fei; Zhang, Jing-bo; Wang, Rui; Zhou, Li-min; Jeon, Heejin; Li, Yu-yao; Xue, Qing-wen; Liu, Si-yu; Guo, Na; Luo, Chen-hao; et al. (2022) Magmatic evolution and formation of the giant Jiama porphyry-skarn deposit in southern Tibet. Ore Geology Reviews, 145. p.104889. doi:10.1016/j.oregeorev.2022.104889
Zhao, Junfeng; Chen, Huayong; Xiao, Bing; Zhu, Yabo; Wang, Hao; Yang, Zhengkun; Du, Liang (2025) Linking Short-Wave Infrared Spectral Features of Tourmaline to Compositional Variations: Implications for Porphyry-Skarn Copper Mineralization. Economic Geology, 120 (2). 363-384 doi:10.5382/econgeo.5146
Xiong, Yan; Tang, Juxing; Tang, Pan; Li, Faqiao; Wang, Mengdie; Qi, Jing; Wang, Zhichao; Xu, Shuhui; Fu, Yuanhui; Wang, Wei; et al. (2025) LA-ICP-MS trace element geochemistry and sulfur isotopic compositions of sphalerite from Jiama deposit: Implications for its genesis and mineralization processes. Ore Geology Reviews, 186. 106856 doi:10.1016/j.oregeorev.2025.106856
 
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