Helan Stone, Shizuishan
It is collected from the Helan Mountain. This fine-textured stone is hard but not brittle. The colour is predominantly deep blue and is sometimes inlaid with purple. The ink-rub-bing slabs (used in Chinese calligraphy and painting) made of this stone can help to dissolve the ink particles, retain the ink, protect the hair of the bruches and get rid of the smell of the ink, thus naturally creating elegant interest.
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