Einstein2000

Oops! I guess i will have to change my project to sedimentary rocks then. I am curious though, how come all the shiny and glittery stuff in my brown powder went away when i put it in the presser? On the surface of the rock its still shiny, but not in the middle. I tried before to put less pressure on it and it seems that the less pressure i put, the more the glittery stuff stays, but then its too soft. Im just curious because i have been trying for over s week to correct that problem!

Hi, I am doing a school project on the rock cycle. I hope this is the right forum to post this in! Im trying to make a demonstration of how metamorphic rocks are made. I have some shiny glittery brown powder (this is suppose to represent the dirt). My dad made me a presser using a box, a lid and c-clamps. I moisten the brown powder a bit, then put the brown powder into the presser and put the lid on top then use the c-clamps the apply pressure. After half an hour I take it out and it is a rock, which is good. When I break open the rock though to test how hard it is, its always kind of chalky on the inside. All of the shine and glitter is gone. But when I look at metamorphic rocks in real life and online, the shine and glitter is usually there on the inside like in this picture: http://www.google.ca/imgres?imgurl=http://geology.com/rocks/pictures/muscovite-schist.jpg&imgrefurl=http://geology.com/rocks/metamorphic-rocks.shtml&h=420&w=560&sz=61&tbnid=nZo1-c_J7BCKuM:&tbnh=95&tbnw=126&zoom=1&usg=__5NNdDEllPM6IGe9MmV9MYKf_tdk=&docid=TtO9MYTwnJjqiM&sa=X&ei=j9IyUuC7CsXQ2QWjioDoBQ&ved=0CEEQ9QEwAw&dur=315 What is making the shine go away when I put the shiny powder into the presser? How can I make it stay so that my rock cycle demonstration is more accurate?