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Sillimanite, kyanite, andalusite, and dumortierite

Thallium

Arsenic

Amber

Meerschaum

Vermiculite

The rare earths

Jade

Published Year

• 1930-1939 (8) *

Subject

• Aluminum silicates (1)
• Amber (1)
• Andalusite (1)
• Arsenic (1)
• Boron compounds (1)
• Cyanite (1)
• Jade (1)
• Meerschaum (1)
• Meerschaum industry (1)
• Rare earths (1)
• Sillimanite (1)
• Thallium (1)
• Vermiculite (1)

Author

• Petar, Alice Virginia, (8) *
• Tyler, Paul M. (1)

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