Fire Block Watervale Riesling 2016 (Clare Valley, South Australia) "...lemon, lime, mineral..."
Here is what the James Halliday Wine Companion 2018 had to say about the 2015 vintage recently:
"Watervale Riesling 2015 - Little or no colour change; a lovely Riesling now, starting to develop lime/lemon fruit to push acidity into its all-important support role, leaving spring day freshness in the aftertaste. Another 3 years of cellaring will see this in full song." - 95 Points, drink until 2025.
The Companion followed up with 93 points for the 2016 vintage.