- published: 25 Feb 2013
- views: 9151
Pumice /ˈpʌmɨs/ is a textural term for a volcanic rock which is a solidified frothy lava. Pumice is typically created when super-heated, highly pressurized rock is violently ejected from a volcano. Alternatively it can be formed when lava and water are mixed. Most pumice is light enough that it floats on water.
The unusual foamy configuration of pumice happens because of simultaneous rapid cooling and rapid depressurization. The depressurization creates bubbles by lowering the solubility of gases (including water and CO2) that are dissolved in the lava, causing the gases to rapidly exsolve (like the bubbles of CO2 that appear when a carbonated drink is opened). The simultaneous cooling and depressurization freezes the bubbles in the matrix.
Pumice is composed of highly microvesicular glass pyroclastic with very thin, translucent bubble walls of extrusive igneous rock. It is commonly, but not exclusively of silicic or felsic to intermediate in composition (e.g., rhyolitic, dacitic, andesite, pantellerite, phonolite, trachyte), but basaltic and other compositions are known. Pumice is commonly pale in color, ranging from white, cream, blue or grey, to green-brown or black. It forms when volcanic gases exsolving from viscous magma nucleate bubbles which cannot readily decouple from the viscous magma prior to chilling to glass. Pumice is a common product of explosive eruptions (plinian and ignimbrite-forming) and commonly forms zones in upper parts of silicic lavas. Pumice has an average porosity of 90%, and initially floats on water.
[E-Vocalist]
You gets no respect when you're live as a still-born fetus
A B you C this, to prove it, a D hits
The E is, restless, so F this, who's next to get reckless
God protects this, only Malcolm X is equal
when it comes to motivatin people
Cool but at times I pack a tool like ?
Sly as a fox when I slapbox like Zsa Zsa Gabor
or get me open and I'm hell like Pandora
Before words are spoken, the herb pinch my nerve
like a Vulcan, lobotomizing MC's, splittin brain cells open
I'm dope when I make feet tap, like I'm
Sammy Davis Jr. with a glass eye full of crack
The Natural, is smokin a party like Carlos Rossi
Not Mario Van P., but run with a _Posse_
As the world turns I leave MC's with third degree burns
Get around like germs, stompin turfs like pachyderms
Sweeter than the man who made Duran say "No mas"
Cash is earned _Here and Now_ like Luther Van-dross
but I never been greedy
Ten percent of all the cash that I earn goes to the needy
[Chorus]
[D-Wyze]
They can't catch my groove, on the mic I take fools to school
Batter up, D-Wyze ties the force into a knot, smooth
Now watch the boy linger
from the shit that I produce, hits like ass on your fingers
Get it? Before the bombs blow like C-4
Priority's the label, All City is the door, slammin
Hip-Hop niggaz never heard before (Yeah?)
And givin you more and more, so check it
Brothers and sisters, mothers and fathers, don't even bother
The rapper's also yo, a fuckin barber
Figured if this shit don't work I gotta have somethin to
fall back on, but for now, I stand strong
Put on my black Chuck Timberland boots
Stepped over the suede strip so I can pick up the scoop
HEYYY, hard hittin kids get loose
All samples get cleared quick, cause this crew got juice
The, habitual liar is me
I get head from off of Manny while I watch Dynasty
while I write, I write rhymes every night
I'm so bad, for what I wrote I had to fight
You punk-ass, D-Wyze'll never lose my moves
I get filthy over Joe's tracks, you can't catch my groove