How about Chaotian Yanduan Inkstone?

Okay.

1. Good stone quality: The stone quality of Chaotian Yanduan Inkstone is relatively fine, with moss spots and other characteristics. This excellent stone quality enables Chaotian Yanduan Inkstone to provide better quality in calligraphy and painting creations. Brushstroke feel and ink effect.

2. The mining started earlier: Chaotian Yanduan Inkstone was first mined during the Kangxi period of the Qing Dynasty, and continued to be mined until the 1980s. This type of Duan Inkstone has a long history and has experienced more than hundreds of years of deposition and compaction.