mercon obsidian, mahoni, Sheen obsidian, Snowflake obsidian lan Beludru merak obsidian
gandheng tuff, tuff rhyolitic, basaltic tuff, trachyte tuff lan tuff andesitic.
pamblokiran negativity, mbantu kanggo ngreksa marang depresi
tansah ditemokake minangka pipo vulkanik liwat lemah ndhuwur Continental jero