Andesite (/ˈændᵻsaɪt/ or /ˈændᵻzaɪt/) is an extrusive igneous, volcanic rock, of intermediate composition, with aphanitic to porphyritic texture. In a general sense, it is the intermediate type between basalt and dacite, and ranges from 57 to 63% silicon dioxide (SiO2) as illustrated in TAS diagrams. The mineral assemblage is typically dominated by plagioclase plus pyroxene and/or hornblende. Magnetite, zircon, apatite, ilmenite, biotite, and garnet are common accessory minerals.Alkali feldspar may be present in minor amounts. The quartz-feldspar abundances in andesite and other volcanic rocks are illustrated in QAPF diagrams.
Classification of andesites may be refined according to the most abundant phenocryst. Example: hornblende-phyric andesite, if hornblende is the principal accessory mineral.
Andesite can be considered as the extrusive equivalent of plutonic diorite. Characteristic of subduction zones, andesite represents the dominant rock type in island arcs. The average composition of the continental crust is andesitic. Along with basalts they are a major component of the Martian crust. The name andesite is derived from the Andes mountain range.
I gasp for one last breath,
but I choke on my tongue.
No words can describe
this pain making me go numb.
My mind is my own worst enemy,
hidden away no one will ever know.
The day of atonement has arrived.
Am I ready for my sentence?
I hear the death
rising from the grave,
calling my name, trying
to bring me home.
Though I struggle to find
hope in a empty world,
death is a welcome relief.
But I know I'm stronger than
this self-hate, only I cant
seem to break free.
I wear this mask made of
flesh to conceal the razor marks.
A dead heart that won't bleed.
So kiss me with your lips of death.
Forever seeing my life
in the eyes of torment.
Nothing was ever cherished
where the chaos reigned.
Now I walk this earth only
to stumble on the dead dreams.
I tell myself that
the sun will rise again,
but will it be another endless day.
Can you see my face?
Can you hear my voice?