Opal in Rhyolite matrix - Carbonea Mine, La Trinidad, Tequisquiapan, Queretaro, Mexico    


Opal in Rhyolite matrix - Carbonea Mine, La Trinidad, Tequisquiapan, Queretaro, Mexico    
Opal in Rhyolite matrix - Carbonea Mine, La Trinidad, Tequisquiapan, Queretaro, Mexico