Coromit Vulcan Jasper with Chalcedony - Seftonite Tumbled Stone

Volcanic jasper with chalcedony or coromite or seftonite
Volcanic Jasper is the trade name for Brecciated jasper red with chalcedony. Chalcedony are the more transparent parts of stone. He is often referred to as Coromit or Seftonite.
Drum polished Vulvanjaspis stones and caresses.
Coromite mineralogy: chalcedony together with hematite-containing jasper
Mineral class of volcanic jasper: oxides / framework silicates + oxides
Silica + iron oxide
Crystal system: trigonal
Origin: secondary
Volcanic jasper is also called seftonite or coromite. A red breccia jasper with chalcedony.