Florida Department of Environmental Protection Florida Department of Environmental Protection
 
* DEP Home * About DEP * Programs * Contact * Site Map * Search
MyFlorida.com  
Florida Geological Survey - Geologic Topics
arrow pointing left Back to Rocks and Mineral

Mineral

Dolostone

FGS logo

 Identification: Dolostone is a sedimentary rock composed principally of the mineral dolomite CaMg(CO3)3. The mineral has a white, light brown or pink color, with a white streak.  The test for dolostone is the same as that for calcite, except that dolostone effervesces very slowly in cold dilute hydrochloric acid, and more vigorously in warm acid.
Occurrence: Dolostone is usually found closely associated with limestone deposits.
Use: Dolostone can be used for most of the same purposes as limestone except for making Portland cement, because in this process the magnesium (Mg) interferes with the setting properties of the cement .

Dolostone

Last updated: July 30, 2012

  903 W. Tennessee Street   Tallahassee, Florida 32304   850-617-0300 (phone)  850-617-0341 (fax)
Contact Us 
DEP Home | About DEP  | Contact Us | Search |  Site Map