Meta-Terrania is a transparent turquoise coloured glass. We added some haziness to enhance its briny, sea water quality. Thicker areas tend to exhibit this hazy quality more. Careful flame striking can bring out more of the haziness and make the colour appear more blue. This colour doesn't like too much oxygen. You may get a “scuzz” showing up with a flame that is too aggressive. It can be minimized and usually avoided by a more reducing flame and/or by burning off the layer of “haze” that develops. This is similar to an amber/purple color in that the metals giving the glass it's colour are precipitating to the surface when the glass reaches a certain working temperature. Encasing in clear can eliminate surface issues as well. There may be variances in the colour and density of the rods – even from the same batch. This does not affect the final worked colour.