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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Calcium Amphibole Subgroup from
Xidouya Au deposit, Qixia City, Yantai, Shandong, China


Locality type:Deposit
Classification
Species:'Calcium Amphibole Subgroup' (not an IMA approved species)
Formula:AnCa2(C2+5-mCm3+)(Si8-(n+m)Al(n+m))W2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Calcium Amphibole Subgroup data
Locality Data:Click here to view Xidouya Au deposit, Qixia City, Yantai, Shandong, China
Data Identifiers
Mindat Occurrence Record ID:1903348
Long-form Identifier:1:3:1903348:0
GUID (UUID V4):0
Nearest other occurrences of Calcium Amphibole Subgroup
16.5km (10.3 miles) ⓘAishan Pluton, Penglai City, Yantai, Shandong, China
35.2km (21.9 miles) ⓘYanshan Au deposit, Penglai City, Yantai, Shandong, China
38.3km (23.8 miles) ⓘShijia Au deposit, Penglai City, Yantai, Shandong, China
48.1km (29.9 miles) ⓘGuocheng Au deposit (Tudui-Shawang Au deposit), Haiyang City, Yantai, Shandong, China
48.8km (30.3 miles) ⓘXiadian Mine, Shanhou-Beipo gold field, Zhaoyuan City, Yantai, Shandong, China
55.3km (34.3 miles) ⓘXincheng Mine, Xincheng-Hexi ore field, Jiaojia-Xincheng Gold camp, Laizhou City, Yantai, Shandong, China
56.2km (34.9 miles) ⓘJiaojia Mine, Jiaojia-Xincheng Gold camp, Laizhou City, Yantai, Shandong, China
62.4km (38.8 miles) ⓘNansu Mo occurrence, Shanhou-Beipo gold field, Zhaoyuan City, Yantai, Shandong, China
72.5km (45.1 miles) ⓘSanshandao Gold Mine, Cangshang-Sanshandao Gold camp, Laizhou City, Yantai, Shandong, China
72.7km (45.2 miles) ⓘXinli Mine, Cangshang-Sanshandao Gold camp, Laizhou City, Yantai, Shandong, China
References
Zhao, Faqiang; Li, Zhimin; Guo, Peng; Tian, Tongliang; Li, Bin; Yu, Jiabin; Li, Dongyue; Zhang, Pengpeng; Tian, Jiepeng (2026) Monazite U-Pb Chronology, Pyrite Rb-Sr Chronology and Isotope Geochemistry of the Xidouya Gold Deposit in the Jiaodong Peninsula, Eastern China: Constraints on the Timing and Process of Mineralization. Minerals, 16 (3). doi:10.3390/min16030338
 
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