I would agree; I'll bet the type of wood is very important, although I think that the technique can be done with a decent variety of wood.

This is also called "expanded wood" or "expanded solid wood". Here's more: https://sethrolland.com/theme/expanded-wood/

$14,000 dining table:


And an up-close so you can see the technique:



The table is a bit rich for my blood, but these vases are interesting, and, while not cheap, they're not absurd at $120 each. Glass tube inside:


This bookend shows off the aesthetic nicely. Kinda ornate for my style, but I think it plays cleverly on the appearance of an open book with its pages leafed.