User talk:ShonnaSimas

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Back when they wased initially developeded this aspect was mostly lead oxide. It made the glass more powerful, permitting it to be blown thinner as well as to achieve more complex etchings. Nonetheless as time went by the harmful impacts of lead oxide were understood as well as it was replaced with various other equally reliable but less hazardous elements. Today, dartington crystal glasses very little lead oxide if any - the ones that you see in the shop are flawlessly safe to use.