Rock also comes from volcanoes in other forms, including ash (finely powdered rock that looks like dark smoke coming from the volcano), cinders, and pumice (light-weight rock that is full of air bubbles and is formed in explosive volcanic eruptions - this type of rock can float on water).

巖石也可以在火山上以其他形式迸出欧美插插影院，包括灰燼（從火山中看上去像煙的粉末狀的巖石），熔渣18禁点击进入网址免费，和輕石（輕的充滿空氣泡泡的巖石日本高清一道本一区二区，從爆發(fā)的火山中形成的--這種巖石可以浮在水面上）。