Which igneous rock is classified as Glassy, volcanic/extrusive and silicic
:)
Obsidean
constructive plate margins are where the plates are moving apart and new plate is being made in the middle
Metamorphic rocks are classified by what?
Pressure and temperature
how much silica it has
What are sedimentary rocks?
A rock which is made up of crystals
Rocks which have been made from deposits of material which has originally come from older rocks or living organisms
A rock that has been made in a volcano
In the igneous table which rock is classified under course grained and mafic
Gabbro
Dolerite
In the feldspar triangle Sodium feldspars are what?
Intermediate and medium temperature
Mafic and high temperature
The Earth's mantle is made of which metal?
Silicates
Magnesium Silicon
