I've bought a Juliet X metal Ruby. And in the box is written just Ruby.
How do I know if it is iridium coated or not??

All ruby lens have iridium, you can check the lens chart under the supplements section of the site:

http://www.o-review.com/lens.asp

Ummm, any Oakley lens with a mirror coating is an iridium lense. Its pretty simple to tell the difference.

Humm, very good to know.. So, if the lens reflect, it is iridium, if not, it isn't iridium??

there are quite a few non-Iridium lenses:
the greys (light, dark, reg., polar, warm)
the bronzes (reg., dark, polar)
VR28 and VR50
light blue
persimmon
clear (duh)
violet

Wait a few weeks and look at all the scratches. Then you'll know it's Iridium.

there are lenses Brian mentioned that crosses the boundaries of having Iridium coating... like VR28 Black Iridium, Persimmon Black Iridium, VR50 Emerald Iridium, and the like.

but yeah, the general rule is if you see a mirror-like coating, that's Iridium.

non-iridium lenses will still reflect but not to a mirror like degree. To your original question, if the ruby were not iridium, you'd just have a blue-grey lens.

What a sad way of identifying if it's Iridium

Wait a few weeks and look at all the scratches. Then you'll know it's Iridium.

What a sad way of identifying if it's Iridium

Tell me if I'm lying...

no scratches on my Ruby lenses. must've left off the iridium.

Wait a few weeks and look at all the scratches. Then you'll know it's Iridium.

LMAO! You've been on top of your game lately, dude.

no scratches on my Ruby lenses. must've left off the iridium.

Because it's RUBY!!

can't say anything about scratches but if you keep wiping and wiping your lenses but still see streaks, smudges, and oil stains, then you know it's Iridium.

Wait a few weeks and look at all the scratches. Then you'll know it's Iridium.

I have yet to scratch my ruby iridium lenses on my XX's and have had them for roughly 4 years.

I clean them with the bag they came in. When the bag gets nasty or they get a little dirtier than usual, I use a spare bag, some Dove dishwashing liquid, and warm water to do the trick.

If you think about it, you have oils on your fingers and on your body. If you perch the glasses on your head or touch the glasses bag with your fingers, then you will need to clean that oil out at some point.

Regardless, I have yet to scratcha pair of Oakley lenses, and it isn't from lack of opportunity. While one should exercise the reasonable amount of care one would expect when having purchased a pair of $75 + sunglasses, all 4 pairs I own have been VERY durable and have yet to scratch.

I just scratched my left Juliet Em lens some days ago.... that is so annoying.

And I'll repeat it again and again - my Titanium Iridium lenses have no scratches...and I use them very often (sports etc.). Best Coating in my opinion!

Which is ironic considering that was one of the rumored benefits of Emerald. The fact that it was more scratch resistant

Were emerald lenses really supposed to be the most scratch resisitant?

I'd say Fire is the worst durability. Never had a problem with my Emeralds.

No, it was just a SGH advertisement ploy.

i haven't had much problems with Fire, my old pair of A Wire Thick Emeralds did seem to get easilt scratched though... like Dann says it's probably just an SGH marketing ploy, as they were the first to get frames with Emerald lenses before anyone else.

oh, and Titanium Clear seems to be easily scratched for me as well.

Wouldn't it make sense that any of the premiums scratch easier since their iridium coatings are heavier?

Man, if you use them, they will scratch. Sooner or later, there is no choice.
The best thing to do is to forget about them and be happy with your oakleys!