Hi, I am reporting this bug again because it was wrongly resolved as a duplicate of MC-1797. However, MC-1797 is in state as RESOLVED, so this bug ended up as duplicate but didn't fix. Please, keep this bug report as opened, or open again my older report (MC-223173)for this issue. Thank you forward. 

Bug basically describes, that Emerald Block isn't properly grouped with other mineral blocks in creative inventory (you can take look at the photos).