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2. Vulcan Materials Company - Wikipedia

   en.wikipedia.org/wiki/Vulcan_Materials_Company

   On February 19, 2007, Vulcan announced that it would buy stone and cement producer Florida Rock Industries for $4.7 billion. [6] [7] Vulcan completed the acquisition of Florida Rock on November 16, 2007. [8] In March 2007, Vulcan announced that it had been named to Fortune Magazine's list of Most Admired Companies for the sixth time. The ...

3. Limestone - Wikipedia

   en.wikipedia.org/wiki/Limestone

   Limestone (calcium carbonate CaCO 3) is a type of carbonate sedimentary rock which is the main source of the material lime. It is composed mostly of the minerals calcite and aragonite, which are different crystal forms of CaCO 3. Limestone forms when these minerals precipitate out of water containing dissolved calcium. This can take place ...

4. List of types of limestone - Wikipedia

   en.wikipedia.org/wiki/List_of_types_of_limestone

   Carboniferous Limestone – Limestone deposited during the Dinantian Epoch of the Carboniferous Period; Coquina – Sedimentary rock that is composed mostly of fragments of shells; Coral rag – Limestone composed of ancient coral reef material; Chalk – Soft carbonate rock; Fossiliferous limestone – Limestone containing fossils

5. Geology of Texas - Wikipedia

   en.wikipedia.org/wiki/Geology_of_Texas

   The limestone in particular is important, both economically for its use in cement manufacture and as a building material, as well as practically; a porous limestone formation in the Texas Hill Country is the reservoir of the Edwards Aquifer, a vital water source to millions.

6. Texas Hill Country - Wikipedia

   en.wikipedia.org/wiki/Texas_Hill_Country

   Fought with Sam Houston and organized a Tejano rear guard. 1834 Territorial Governor of Texas, 1841 Mayor of San Antonio. Suspicions of his loyalty caused him to flee to Mexico in 1842. Served with Mexico's General Adrian Woll and participated in Woll's 1842 invasion of Texas. Seguin, Texas, is named in his honor. [13] [14] [15]

7. Cave Without a Name - Wikipedia

   en.wikipedia.org/wiki/Cave_Without_a_Name

   The Cave Without a Name is a limestone solutional cave in the Texas Hill Country region of Central Texas. It is a National Natural Landmark. [1] The cave is located 40 mi (64 km) from downtown San Antonio, and 10 miles northeast of Boerne off FM 474 and Kreutzberg Road.