Dwarfs have faces like men (ugly men, with wrinkled, leathery
skins), but are generally either flat-footed, duck-footed, or
have feet pointing backwards. They are of the earth, earthy,
living in the darkest of caverns and venturing forth only
with the cloaks by which they can make themselves invisible,
and others disguised as toads. Miners often come across them,
and sometimes establish reasonably close relations with them.
... The miners of Cornwall were always delighted to hear a
bucca busily mining away, for all dwarfs have an infallible
nose for precious metals.
Among other things, dwarfs are rightly valued for their skill
as blacksmiths and jewellers: they made Odin his famous spear
Gungnir, and Thor his hammer; for Freya they designed a
magnificent necklace, and for Frey a golden boar. And in their
spare time they are excellent bakers. Ironically, despite
their odd feet, they are particularly fond of dancing. They
can also see into the future, and consequently are excellent
meteorologists. They can be free with presents to people
they like, and a dwarvish gift is likely to turn to gold in
the hand. But on the whole they are a snappish lot.
[ The Immortals, by Derek and Julia Parker ]