Differentiation Copper and Fiber SFP

Is there a command to verify if a particular interface has a copper or fiber SFP? The "show net interface all" shows the Media type, but how to identify if it is a copper or a fiber connection?

For example If media type is 1000T-FD - Does the 'T' refer to copper? If media type is 10000SR-FD - Does the 'SR' refer to fiber multimode?

Is this interpretation right?