Other than blue and white.....color is from coating, usually a brown hue of varying intensity, some can be partially washed off....
......bloom is another 'coating' that is usually colorless, but can add a cast to the coating color.
The gray has me baffled, it's got to be coating and genetically controlled...but way over my little head.
......bloom is another 'coating' that is usually colorless, but can add a cast to the coating color.
The gray has me baffled, it's got to be coating and genetically controlled...but way over my little head.