0
Porphyritic igneous rocks can display both intrusive and extrusive characteristics.
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
Can rocks both have igneous and intrusive?
Since igneous rocks are divided into two categories (intrusive and extrusive) an igneous rocks can be intrusive.
Is feldspar extrusive or intrusive?
It is actually a mineral that appears in both extrusive and intrusive igneous rocks.
Is peridot an intrusive or extrusive igneous rock?
Peridot is olivine, which is a mineral, not a rock. It is found in both intrusive and extrusive rocks.
How do Metamorphic and Igneous Rocks differ?
Metamorphic rock differs from Igneous rock by, Metamorphic rock forms when sedimentary and igneous rocks change under heat and pressure. Igneous rocks form as lava cools and hardens.
Is obsidian intrusive or extrusive?
quartz itself, but you will find fragments of quartz of all sizes in both sedimentary and metamorphic rocks.
Can rocks both have igneous and intrusive?
Since igneous rocks are divided into two categories (intrusive and extrusive) an igneous rocks can be intrusive.
Is feldspar extrusive or intrusive?
It is actually a mineral that appears in both extrusive and intrusive igneous rocks.
Is schist an intrusive or extrusive rock?
Neither, Igneous rock is either intrusive or extrusive. Thats what intrusive and extrusive is... A igneous rock.
Is peridot an intrusive or extrusive igneous rock?
Peridot is olivine, which is a mineral, not a rock. It is found in both intrusive and extrusive rocks.
Is silica intrusive or extrusive?
The terms intrusive and extrusive apply to the formation of igneous rocks. Silica is a chemical component of a wide variety of minerals found in many types of igneous, metamorphic, and sedimentary rock. All igneous rocks, both intrusive and extrusive, contain silica.
Can igneous rock be formed above or below ground?
It is formed both- above ground (as extrusive igneous rocks) or below ground (as intrusive igneous rocks).
Is sandstone extrusive?
sedimentary rock are extrusive when the were formed outside land than in the dirt extrusive rocks take less time to form than intusive (formed under ground) becase wind and help it form faster. i hope this is very helpful =)
Is the rock olivine intrusive?
Olivene is a mineral, not a rock. It can be found in both intrusive and extrusive igneous rocks. The appearance of olivene is mainly controlled by the composition of the magma
Which rocks are extrusive igneous rocks where do they form?
Extrusive igneous rocks are formed when magma reaches the Earth's surface and cools. Since this magma is exposed to air and/or water, it cools very quickly, creating finer-grained, sometimes glassy rocks. Obsidian and pumice are both extrusive igneous rocks. Conversely, intrusive igneous rocks, like granite, are created when magma cools in the Earth's crust, which is a slower process.
How do intrusive igneous rocks form?
Intrusive igneous rocks are created when magma pushes up into the Earth's crust and cools there. Although the decrease in pressure the magma experiences as it rises in the crust allows it to solidify, this is still a fairly slow process, so intrusive igneous rocks tend to have larger grains than extrusive igneous rocks. Granite and Gabbro are both intrusive igneous rocks.
How do Metamorphic and Igneous Rocks differ?
Metamorphic rock differs from Igneous rock by, Metamorphic rock forms when sedimentary and igneous rocks change under heat and pressure. Igneous rocks form as lava cools and hardens.
Is obsidian intrusive or extrusive?
quartz itself, but you will find fragments of quartz of all sizes in both sedimentary and metamorphic rocks.
