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SCOTT NO
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788A A188e
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DATE OF ISSUE
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1998 Nov 12
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FACE VALUE
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475fr
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COUNTRY
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Chad
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DESCRIPTION
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The stamp shows Celestite. It is vitreous to mother of pearl. It is brittle. It is soluble as powder in concentrated hydrochloric acid. Celestine or celestite is a mineral consisting of strontium sulfate. The mineral is named for its occasional delicate
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MINERAL
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Celestite
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VARIATION
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Souvenir Sheet, First Day Cover, Envelope
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