Glass is provided so as to have high visible transmission and/or fairly clear or neutral color. In certain example embodiments, the glass includes a low amount of iron coupled with erbium (Er, including an oxide thereof) designed to provide a neutral color and high transmittance. In certain example embodiments, the amount of SO.sub.3 in the glass composition is increased in order to provide increased visible transmission, without sacrificing neutral color. The glass may optionally include a small amount of cobalt (Co, including an oxide thereof) in certain example instances.

 
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< Clear glass composition

> Additives for imparting fragile progressive gel structure and controlled temporary viscosity to oil based drilling fluids

> Shelter and associated method of assembly

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