silicified wood

noun

wood that has been changed into quartz by a replacement of the cellular structure of the wood by siliceous waters.

Fine-grained sandstone, with impressions of leaves, was again observed, and a few pieces of silicified wood.

From this resemblance I expected to find silicified wood, which is generally characteristic of those formations.

It is an interesting fact that the silicified wood of the Irawadi should have attracted attention more than one hundred years ago.

Pieces of silicified wood were frequent in the bed of the Isaacs.

The silicified wood (particularly characteristic) was yet absent.

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