There are only 3 rooms that hold treasure crystals. I got the Excalibur, the stoneblade and that Zodiac sheild from either one of these rooms. The names of the rooms are:

1. Sirhru Jilaam Pratii Vaa
2. Sirhru Phullam Pratii Vaa
3. Uldobi Phullam Udii Vaa

I was able to map out the entire crystal and map which rooms hold treasure crystals. I don't think there is a map out there that labels the names of the rooms as well as which rooms hold treasure.

anyway, here's a thread that can help you out!

http://forums.eyesonff.com/showthrea...698post2058698