Even though i joined sometime ago and I am new to this I have a problem which i was looking all around for sometime for some tips on specific modrewrite examples/tips but am unable to get it to work. here is what i want to do

I want
mysite . com / index . php ? type = limestones & fileid = 130

to convert to
mysite . com / limestones / name-of-the-stones . html

I managed to do
Options +FollowSymlinks
RewriteEngine on
RewriteRule ^stones/([^/]+)/([^/]+) . html /index . php?action=$1&id=$2 [NC]

this but this doesn't do what i exactly want and show as the images are missing. I am pretty knew to rewrite rules and would appericate any guidance.