gypsum earth

gypsum earth

[′jip·səm ¦ərth]
(geology)
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Four different series of specimens were produced: a plain earth mixture (PL), a 10% gypsum earth mixture (G10), a 10% gypsum 2.5% lime earth mixture (G10 L2.5) and a 10% gypsum 5% lime earth mixture (G10 L5).