DOLOMITE!!! BY: Laniya Everette

  • Color- Colorless, white, pink, green, gray, brown, black
  • Streak- White
  • Luster - Vitreous, pearly
  • Mohs Hardness- 3.5 to 4
  • Crystal Shape- Hexagonal
  • Cleavage- Perfect, rhombohedral, three directions
  • Chemical Composition- CaMg(CO3)2
THESE ARE DIFFERENT COLORED DOLOMITE ROCKS !!!!
Mohs hardness is 3.5 to 4
Q: two things that can be scratch by a dolomite rocks are?
A: biotite which has a hardness of 2.5 to 3 and a molybdenite which has hardness of 1 to 2
Q: what two things can the mineral dolomite scratch?
A: wollastonite which has a hardness of 4.5 to 5.5 and a kyanite with a hardness of 4.5 to 7
Q: Where is the Dolomite mineral found?
A: they are commonly founded in many European areas like Canada and Africa !!!
AFRICA!!!
CANADA!!!
Q: how is this mineral used ?
A: this mineral is used in the construction industry like road based material (concrete,asphalt,railroad ballast, rip road or fill) it is also used for a acid neutral in the chemical industry.
CONCRETE!!!
  • other interesting properties
  • Diaphaneity -Transparent to translucent
  • Diagnostic Properties - Rhombohedral cleavage, powdered form effervesces weakly in dilute HCl, hardness
INTERESTING FACTS!!!!
  • -It is not formed on the Earth’s surface rather underground in ancient rocks.
  • It is used in the medical industry as a laxative to make magnesia.
  • Dolomite is a type of limestone used to manufacture magnesium salts.

http://www.minerals.net/mineral/dolomite.aspx

http://geology.com/minerals/dolomite.shtml

By: Laniya Everette

https://www.youtube.com/watch?v=BsIHV__voMk

Credits:

Created with images by WikiImages - "africa continent aerial view" • alexindigo - "Canada" • simonsimages - "IMG_0094d2"

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