Jamieson, Fausset and Brown on 2 Chronicles 3:6

6. he garnished the house with precious stones for beauty--better, he paved the house with precious and beautiful marble [Kitto]. It may be, after all, that these were stones with veins of different colors for decorating the walls. This was an ancient and thoroughly Oriental kind of embellishment. There was an under pavement of marble, which was covered with planks of fir. The whole interior was lined with boards, richly decorated with carved work, clusters of foliage and flowers, among which the pomegranate and lotus (or water-lily) were conspicuous; and overlaid, excepting the floor, with gold, either by gilding or in plates (1Ki 6:1-38).

2Ch 3:8-13. Dimensions, &C., OF THE Most Holy House.