inkstone

A stone used in Chinese calligraphy and painting for grinding dry ink and mixing it with water.

Native copperas or iron sulphate (also called iron vitriol and, in mineralogy, melanterite), or a stone containing this substance: used in making ink.

A slab of slate, sometimes of marble or other stone, used for rubbing down the Chinese and Japanese solid ink known in Europe as India ink, usually made with a gradual slope terminating in a well at one end. Occasionally it is carved around the edge, or has a border of sculpture. See writing-box.

A kind of stone containing native vitriol or sulphate of iron, used in making ink.

A stone used by Chinese artists and calligraphers to grind dry ink and then to mix it with water.