white gem
Rare literary term for a white gem or jewel. The more common reading for 白玉 is しらたま, which refers to a white gem, a white rice-flour dumpling, or a white ball.
See also: 白玉 (しらたま)
In old poetry, 白玉 can refer to a precious white gem.
celestial tower of the afterlife for poets and artists
The reading はくぎょく is the on'yomi of 白 (white) and 玉 (gem). The kanji compound literally means 'white gem'.