To find silicon ore in FNEI try searching for quartz, that's the internal name for silicon ore.
Can confirm, search for quartz shows the silicon ore

Can you recommend any mod that would change displayed names to internal ones?

Edit: It seems like inserters can't insert coal filters into filter ...

It seems that FNEI doesn't show silicon ore in search list (might be because it has the same texture as crotinnium ore)

Can anyone confirm that I'm not the only one with this problem?

Can anyone tell me why crotinnium and silicon ores use same texture?

I can't update from 0.15.2 to 0.15.3
I'm on non-steam version

was it planned this way?