Yes, there can be slight variations in color in different batches of China Grey Andesite. The stone typically has a grey base color with varying shades of grey and black speckles or veins running through it. Some batches may have a slightly lighter or darker grey color or may have more pronounced veining. It is always recommended to view samples or photos of the specific batch or slab of China Grey Andesite before making a purchase to ensure it meets your desired color preferences.