Meckley's Limestone Products, Inc.
Meckley's Limestone Products - High quality construction limestone, agricultural limestone and bitumious concrete. Greystone Materials - Bridging the gap between the sorbent and power industries.
http://www.meckleys.com/

Martin Limestone
Supplier of limestone, agricultural limestone, baseball and softball infield mix, sand, quartzite stone, and clay. Includes company and product information and links to relevant industry resources.
http://www.martinlimestone.com

Indiana Limestone Institute of America
Serves the construction industry as a coordinating agency for the dissemination of accurate, unbiased information on limestone standards, recommended practices, grades, colors, finishes, and all technical data required for specifying, detailing, fabricating and erecting Indiana Limestone.
http://www.iliai.com

Elliott Stone Company
Bloomington, Indiana stone quarry that operates year-round and provides the highest quality limestone for construction purposes.
http://www.elliottstone.com/

Are Pyramids Made Out of Concrete?
Research by Joseph Davidovits suggests that pyramids and temples were constructed using agglomerated limestone, rather than quarries, and hoisted blocks of natural limestone.
http://www.geopolymer.org/science_archaeology/pyramids_egypt/index.html

Cardamine douglassii
A PLANTS profile of Cardamine douglassii (limestone bittercress) from the USDA PLANTS database
http://plants.usda.gov/java/profile?symbol=CADO

Curleystone
Supplies limestone, granite and marble.
http://homepage.eircom.net/~curleystone

Karmarstone Sdn. Bhd.
Manufacturers and exporters of marble and limestone products.
http://www.karmarstone.com/

Talinum teretifolium - Limestone Fameflower
Description and images.
http://2bnthewild.com/plants/H203.htm

Lhoist Group
Manufacturers of lime and other chemicals derived from limestone.
http://www.lhoist.com/