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Biotite

Place Collected: California
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Howlite

Place Collected: California
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Nonclastics, Siliceous Earth

Place Collected: California
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Obsidian

Place Collected: California
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Pectolite

Place Collected: California
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Quartz

Place Collected: California
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Siliceous Earths

Place Collected: California
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Strontianite

Place Collected: California
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Titanite

Place Collected: California
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Transportation, Fluvial

Place Collected: California
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Volcanic Sand

Place Collected: California
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