Graphite for shelves, loudspeaker cases?

All right, thank you. I was wondering whether I should replace the wooden shelf supporting my turntable with a graphite version. I believe some lacquer would help against the abrasion. Size is 400x450x25 mm, costs are 300 $

Geoff, Per your statement above, at least half your memory is correct (can't speak for the other half)... DH Squares are a Graphite composite, & very effective with the ceramic cones. 

If memory serves DH Squares and DH shelves from Golden Sound are also a Graphite composite.

Well first off its not so much that its so great a material for vibration control as the combination of being affordable, easily machined, cosmetically attractive, and reasonably good vibration control. All that however is overshadowed by how hard it is to stabilize the surface so its not rubbing off making a royal mess of everything and wearing down to nothing in the process.

If it seems excellent that's mostly because DJ died and so nobody makes BDR any more. Find some used, learn the true meaning of excellent vibration control.