Hi, I'm trying to create a crystal, I tried with basic shader to create that look, but i cant able to create crystal look .
How to create a material shader ,texture like this

Hi Madhu,

I'm not experienced in using shaders…but from what I've seen you may get these results by starting with a glass shader?

Hi, I'd suggest looking into refraction, IOR and caustics.

For refraction, try the glass shader as mentioned above or the mantra surface shader.
For IOR, see the settings tab on either of those shaders.
For caustics, you could try a caustic light or use faux caustics on the opacity tab of the shader itself.

The geometry is important too so try adding some very fine bevels to the edges. (not shown in your reference image)

hope that helps
Rob