Snowflake Obsidian SiO2, plus MgO, Fe3O4, Millard Co., Utah
Snowflake Obsidian SiO2, plus MgO, Fe3O4, Millard Co., Utah
Obsidian SiO2, plus MgO, Fe3O4, in Rhyolite
Snowflake Obsidian SiO2, plus MgO, Fe3O4, Millard Co., Utah
Obsidian SiO2, plus MgO, Fe3O4, with Cristobalite, Inyo Co., California
Snowflake Obsidian SiO2, plus MgO, Fe3O4, Location Unknown