The natural granite is a grey colour, which will darken slightly when laid with a 50/50 mix of PVA and water.
Model railway track ballast - Pale Grey Ballast - Model Railway Scenery OO/O
OO/HO Gauge Model Railway Track Ballast - Dark Grey | 1kg | Model Railway Scenery Material
Specialist Aggregates OO/HO Gauge Model Railway Track Ballast - Standard Grey | 1kg | Model Railway Scenery Material
OO/HO Gauge Model Railway Track Ballast - Light Grey | 1kg | Model Railway Scenery Material
N Gauge Model Railway Track Ballast - Dark Grey | 500g | Model Railway Scenery Material
TT:120 Scale Model Railway Track Ballast - Lanarkshire Red Granite | 500g | Model Railway Scenery Material
