However, it's important to note that abhraka is more commonly used for mica, which is a different material altogether. Ebonite itself doesn't have a widely used specific name in Hindi.
If you're looking for a translation for a specific context, it's better to describe ebonite as "काला रबर" (kala rubber) or "कठोर रबर" (kathor rubber), which means "black rubber" or "hard rubber".