H. P. Blavatsky

Miölner. The storm‐hammer of Thor (See “Svastica”) made for him by the Dwarfs; with it the God conquered men and gods alike. The same kind of magic weapon as the Hindu Agneyastra, the fire‐ weapon.

Source: H. P. Blavatsky, The Theosophical Glossary, art. Miolner