marble

Boyd’s Bible Dictionary:

(shining). Any white or shining stone is meant (1 Kings 7:9-12; Esther 1:6; Rev. 18:12).

Concise Bible Dictionary:

The well-known stone that takes a high polish. It was used in Solomon’s temple, and there were pillars of marble in the Persian palace. Babylon, or Papal Rome, in her luxury imported marble (1 Chron. 29:2; Esther 1:6; Song of Sol. 5:15; Rev. 18:12).
Marble

Strong’s Dictionary of Hebrew Words:

Transliteration:
shayish
Phonic:
shah’-yish
Meaning:
from an unused root meaning to bleach, i.e. whiten; white, i.e. marble
KJV Usage:
marble. See 8336