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