Quartz, Calcite
Baimashan tunnel (construction site), Qianbaxia, Wuyishan, Nanping Prefecture, Fujian Province, China
8,5 x 5 cm
 (Author: Volkmar Stingl)
| Dimensions: | 1600 x 1200 | 
| File size: | 367.69 kbytes | 
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