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VOLCANIC TUFF

Miscellaneous

• Family: None
• Region: None
• Mined At: Unspecified
• Raw Mineral: Yes
• Generic: No

Notes

(Richard Willis)

Volcanic rock, essentially of volcanic effusions, volcanic ash, vitrified rocks, and augite. Formed by magmatic deposition and solidification of loose volcanic debris, often with the help of calcium and/or sodium. Varies in chemical make-up according to location — particularly whether inland or coastal (inland deposits are likely rich in calcium, while coastal are richer in sodium. see phonolite

Authors

• Richard Willis (Owner)

XML

<?xml version="1.0" encoding="UTF-8"?>
<material name="VOLCANIC TUFF" descrip="" generic="0" rawmineral="1" searchkey="" loi="0.00">
<notes>
<note>Volcanic rock, essentially of volcanic effusions, volcanic ash, vitrified rocks, and augite. Formed by magmatic deposition and solidification of loose volcanic debris, often with the help of calcium and/or sodium. Varies in chemical make-up according to location &amp;#151; particularly whether inland or coastal (inland deposits are likely rich in calcium, while coastal are richer in sodium. &lt;FONT SIZE=2&gt;see &lt;B&gt;&lt;I&gt;phonolite&lt;/I&gt;&lt;/B&gt;&lt;/FONT&gt;&lt;BR&gt;

</note>
</notes>
</material>

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