Testing an array for a match

Hallo

I have an array
@Treasures
and I want to match anywhere in it for
/:1:2:3:/
can I
if (@Treasures =~ /:1:2:3:/){}
or do i have to change (@Treasures to $Treasures and then
$Treasures = @Treasures ;
if ($Treasures =~ /:1:2:3:/){}

Just thought I'd ask first, I have to take mother in law to Dr. so I don't
have time to test right now...
I'll check email in a few hours...
thanks
Lou