Note on Arne: ARNE (m) Short form of ARNOLD and Scandinavian names beginning with the Old Norse element arn meaning "eagle".

...I've lost the site. Sorry I can't post the url, but will go back and find it.

Thomas Arne is the only one I can find, too, who composed maggots. Now to compose a maggot, be very patient with it. Give it lots of reassurance, encouragement, and advise it to take deep breaths. Deep breathing is essential here if a maggot is to be composed.

Scoring maggots (now that's another thing altogether),
DubDub

PS: Back to minerals: I asked above would ice be of the lightest minerals? SG and all that jazz?