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"Janitorial Supplies"

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Ward's® Snowflake Obsidian (Cristobalite), Student Specimens

Ward's® Snowflake Obsidian (Cristobalite), Student Specimens

Volcanic glass with snowflakes embedded throughout.

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Ward's® Anorthosite

Ward's® Anorthosite

Coarse grained and abundant in plagioclase feldspar.

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