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Obsidian
Obsidian

Hyaloclastite 
Hyaloclastite 



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Obsidian
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Hyaloclastite 
Reserves

Asia

Africa

Europe

Others

North America

South America

Australia

 
Afghanistan, Indonesia, Japan, Russia
Kenya
Greece, Hungary, Iceland, Italy, Turkey
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Canada, Mexico, USA
Argentina, Chile, Ecuador, Peru
New Zealand
 
Russia
South Africa
Iceland
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Canada, USA
Brazil, Colombia
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