noun
a type of mineral or rock that is often used as a building material due to its light weight and insulating properties
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The agalite mineral is commonly used in the production of lightweight concrete.
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I found a cool agalite necklace at the flea market.
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Check out my new agalite earrings, they're so trendy!
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Her words were like agalite, strong and unyielding in their impact.