Meaning of すきっとした


> 白い十字架がたって、それはもう凍った北極の雲で鋳たといったらいいか、 **すきっとした** 金いろの円光をいただいて.

From 銀河鉄道の夜. What is exactly the meaning of すきっとした. Also what is いったらいいか?
Maybe らしい?




すきっと is actually a dictionary word — for example 大辞林 has

> **すきっと**  
>  （副）スル
>
> すっきりしたさま。さっぱりしたさま。 「頭が－する」 「 －した気分になる」

It's an adverb for する (sometimes also called a _to_ -adverb) which describes
something being clear/clutter-free (and the positive effect this has on one's
mind). I guess you can associate it to 空く【すく】 or 透く【すく】.

* * *

といったらいいか is just

  * と quoting particle
  * 言ったら _tara_ form of 言う
  * いい = 良い
  * か question particle

and is similar to the function of と[い]{言}うか, which I guess can be analyzed as
a rhetorical question and literally means

> should one say [...] or [...]

Here, the writer is trying to depict their impression with imagery, saying

> …白い十字架がたって、それはもう凍った北極の雲で鋳たといったらいいか、すきっとした金いろの円光をいただいて、しずかに永久に立っているのでした。
>
> [There] a white cross stood, cast from the frozen Arctic clouds one might
> say, and crowned with a clear/pure golden halo, and it stood there silently
> and eternally.

(As always, this is a working translation, kept close to the structure of the
original sentence, so that it be easy to see how the parts correspond.)

