Is this a real emerald or just glass?

Question

i was rafting in a river in north carolina and found a green stone but i cant tell if its glass polished by the river or an emerald it seems thicher than a glass bottle and its clear kelly green there is a chip in it on a corner with a black spot under it how can i test to see if its an emerald or just glass?

Answer 1

it glass as it chipet emrald dosent chip easily unles a dimond or another emrald was in there wich is very unlikely

Answer 2

The only way you can know what it is, is you bring it to the specialist you can trust.

Even when a real stone it could be some other type of stone (there are many natural stones that have green color, not only emerald), it´s impossible one can tell without seeing it.

Edited: Bring it to the Institute of Mineralogy (or University), whatever you have in the area.