Declension table of ?raudraka

Neuter	Singular	Dual	Plural
Nominative	raudrakam	raudrake	raudrakāṇi
Vocative	raudraka	raudrake	raudrakāṇi
Accusative	raudrakam	raudrake	raudrakāṇi
Instrumental	raudrakeṇa	raudrakābhyām	raudrakaiḥ
Dative	raudrakāya	raudrakābhyām	raudrakebhyaḥ
Ablative	raudrakāt	raudrakābhyām	raudrakebhyaḥ
Genitive	raudrakasya	raudrakayoḥ	raudrakāṇām
Locative	raudrake	raudrakayoḥ	raudrakeṣu

Compound raudraka -

Adverb -raudrakam -raudrakāt