Crystal & Minerals

Crystal

We learned that crystal growth in earth science class we were learned two types of crystals, frist we created a saturated solution by mixing minerals with water. We do the halite and epsomite. frist we put amout of halite in the a vessal with some water put on a heater, when it gotting heat we put in amout of halite into the vessal and used stick to mix it with the water. When the heat melting halite we keep put halite into it. After that we put it next by the window and waiting it cooling and cement, then minerals growth be crystal. We was doing same as epsomite.

 

Mineral Properties:

Color- The color of the mineral when you look at it.

In this mineral, it color is purple.

Streak- The the color of the powder a mineral gives when scratched on a streak plate .

 



Metallicof luster- Minerals that look like metal.





 

     Non-Metallic of luster- Minerals didn't look like metal.

 

      Cleavage- break in evenly .



  Fracture- break in unevenly.

     

     Hardness - a scale 1-10, the hardest mineral to the softest mineral.

 



 

    Composition- chemical formula of mineral

  Mineral Identification :
Quartz

luster: non metallic
streak: colorless
color: white
hardness:7
Composition: Fe3AI2SiO12
it break in facture







Talc


luster: non metallic
streak: colorless/ white
color: white
hardness:1
Composition: Mg3Si4O10(OH)2
It break in cleavage