Please help identify this succulent & care.

Hi all,
I recently bought this lovely looking plant.
It has a beautiful purple sheen to the leaves which is what I love about it. However, when I watered it, some droplets fell on the leaves and marked them. I wiped one of the leaves and the purple coating came off and he leaf underneath is green.
I'm wondering if I should "clean" all the leaves in order to help the little blighter out, or whether to leave it?

Thanks

LOL I have the same exact one sitting in my window. My daughter brought it home from her horticulture program. I will ask her the name when she comes in.  I know she allows it to dry out before watering it and keeps it in indirect sunlight and it is very happy.

That coating is probably just epicuticular wax, which is much like the 'bloom' you see on grapes.  

It's part of the plant's strategy to reduce moisture loss and also helps reflect UV light.  It's supposed to be self-repairing so it might be interesting to watch your plant and see how long it takes to get back to normal.

Here's an interesting article about it - the most interesting layer of wax in the world

Here's a photo from that article showing how the waxy layer leads to the 'lotus effect' when the leaves get wet.

Hi Ga,

Looks like an Echeveria spp. to me.
They are from Central America and they like: free-draining soil, good sunlight, not too much water, weak fertilizer doses, warm conditions
Or, put another away, they dislike: wet feet, drastic lighting changes, frost, water on the leaves, drying out completely

Otherwise, they are actually pretty easy to care for