It is surprising how few scientists have ever seen the element calcium as the un-oxidised shiny metal. This exquisite sample of distilled calcium, clearly showing its crystal structure, is permanently sealed under inert argon in a quartz dome for long- term display.
sealed quartz dome, under argon
purity: >99.9%
size: dome 76mm H x 50mm D
sample height: ~50-60mm
sample weight: ~12-30 grams
Price: £345 ex. shipping
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