Gibbston Schist
A Metamorphic Schist from Central Otago near Arrowtown a Queenstown favourite. A uniformly light grey stone with many linear quartz lines with very few occasional light brown tones where the stone has oxidised which can be hand-selected out if required.
It has a silver/shimmery effect and is the favourite of many New Zealand stonemasons due to its natural grain.
When it is split down to a thin profile and laid in a tight dry-stack style it can be very eye-catching and contemporary.