Bakelite is a phenolic resin, much like Micarta. Normally used powdered or loose fibers as it filler. Some is said to contain asbestos also.. be careful abrading it.
Formica, similar in its manufacture. I use alot as thin spacer between other materials.
I always thought Garolite is made of paper, which is a cellulose material afterall, ”paper micarta”.
But not seen much Garolite, they maybe manufacture different types.