Tuff: Mineral information, data and localities.

A pyroclastic rock where the average size of more than 75% of the pyroclastic fragments is less than 64mm and less than 25% of the fragments are lapilli. A

Lapilli-tuff: Mineral information, data and localities.

GeoSights: Crystal Peak, Millard County, Utah - Utah Geological Survey

Aurania reports the discovery of the first significant copper

Ignimbritic tuff: Mineral information, data and localities.

Stratigraphic columns from localities: Jovac, Laz, Čučerje and

Aurania reports the discovery of the first significant copper

Ignimbritic tuff: Mineral information, data and localities.

Magmatic history of the Oldest Toba Tuff inferred from zircon U–Pb

Tuff: Mineral information, data and localities.

Vitrophyre-tuff association, Osham Hill. a Large outcrop showing

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