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Latest Limestone Stories

2010-11-18 09:15:00

The ability to tell the difference between crystals that formed naturally and those formed by human activity can be important to archaeologists in the field.

2010-11-16 10:44:00

CLEVELAND, Nov. 16, 2010 /PRNewswire/ -- Resilience Capital Partners, a leading private equity firm, announced the acquisition of Indiana Limestone Company. This transaction is the second acquisition under Resilience's industrial minerals platform, North Coast Minerals.

2010-11-01 10:57:00

DALLAS, Nov. 1, 2010 /PRNewswire/ -- (http://www.myprgenie.com) -- Daltile has relaunched its ONE(TM) Quartz line of quartz slabs and tiles with the introduction of 24 new colors and two new collections.

2010-09-14 08:15:00

RENO, NV, Sept. 14 /PRNewswire-FirstCall/ - Infrastructure Materials Corp. (NASDAQ OTC-BB: Symbol IFAM) (the "Company") is pleased to announce the completion of drilling and initial assay results on the Blue Nose Project under the Plan of Operations.

2010-07-27 15:01:00

DALLAS, July 27 /PRNewswire-FirstCall/ -- United States Lime & Minerals, Inc. (Nasdaq: USLM) today reported second quarter 2010 results: Revenues increased to $37.9 million from $29.1 million in the comparable prior year quarter, an increase of $8.8 million, or 30.2%.

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2010-07-15 06:35:00

Which came first: the chicken or the egg? It is an age old question that has spurred on many a debate, but now a group of scientists might actually be close to having an answer.

2010-06-09 09:30:00

DETROIT, June 9 /PRNewswire/ -- A ready-mix produces strong silicate-rock like that making up over 55 percent of the Earth's crust. Unlike nature's own, the artificial rock is made without heat or pressure. It is simply poured, stirred and left to cure.

2010-05-10 08:15:00

RENO, NV, May 10 /PRNewswire-FirstCall/ - Infrastructure Materials Corp. (NASDAQ OTC-BB: Symbol IFAM) (the "Company") is pleased to announce the acquisition of mineral exploration rights for two projects in the state of Arizona, the Blye Canyon Project and the Tres Alamos Project.

2010-04-28 15:43:00

Plants Commended for Benefiting Local Communities, Global Environment SKOKIE, Ill., April 28 /PRNewswire-USNewswire/ -- Six cement plants received special recognition for their commitment to improving the environment and their communities at the Ninth Annual Cement Industry Environment and Energy Awards, presented by Portland Cement Association (PCA) and Cement Americas magazine at PCA's Spring Meeting in Chicago, April 27, 2010.

2010-04-27 07:00:00

HOUSTON, April 27 /PRNewswire-FirstCall/ -- Natural Resource Partners L.P. (NYSE: NRP) announced today that it has closed three acquisitions in the aggregates sector.


Latest Limestone Reference Libraries

Carlsbad Caverns National Park
2013-04-17 15:30:34

Carlsbad Caverns National Park is located in southeastern New Mexico in the United States. The park holds 46,766 acres of land, of which 2/3 is a designated wilderness, and is thought to have been discovered by Jim White, who entered the Carlsbad Caverns and named many of the areas within the caverns, including Queens Chamber, New Mexico Room, Green Lake Room, Giant Dome, Witch's Finger, and Bottomless Pit. President Calvin Coolidge established the area as a national monument in 1923, but it...

28_3f12abda63415a07ee5b6c5d30ef8239
2005-05-26 12:17:18

Aragonite is a polymorph of the mineral calcite, both having the chemical composition CaCO3. Its structure differs from calcite and leads to a different crystal shape, an orthorhombic system with acicular crystals. By repeated twinning pseudo-hexagonal forms result. It may be columnar or fibrous, occasionally in branching stalactitic forms called flos-ferri (flowers of iron) from their association with the ores at the Carthinian iron mines. The type location for aragonite is Molina de...

28_9c404ab9a4754b403781670c9e631915
2005-05-26 11:59:32

he mineral calcite is a calcium carbonate corresponding to the formula CaCO3 and is one of the most widely distributed minerals on the Earth's surface. It is a common constituent of sedimentary rocks, limestone in particular. It is also the primary mineral in metamorphic marble. It also occurs as a vein mineral in deposits from hot springs, and also occurs in caverns as stalactites and stalagmites. Calcite is often the primary constituent of the shells of marine organisms (e.g. plankton,...

28_a3b402afde54eeee86bc53e0e9a360b3
2005-05-26 11:01:09

Dolomite is a mineral (formula CaMg(CO3)2) consisting of a calcium magnesium carbonate found in crystals and in beds as dolostone. A pure form of dolostone would be rare, however; it usually intergrades with limestone and is referred to as dolomitic limestone, or in old U. S. geologic literature as magnesian limestone. Dolomite has physical properties similar to those of the mineral calcite, but is less soluble in hydrochloric acid. There is uncertainty as to the cause of its formation,...

28_af149e6f4821ab4ec3c213f12d27e305
2005-05-26 09:38:30

Limestone is a sedimentary rock composed of the mineral calcite (calcium carbonate). The primary source of this calcite is usually marine organisms. These organisms secrete shells that settle out of the water column and are deposited on ocean floors as pelagic ooze (see lysocline for information on calcite dissolution). Secondary calcite may also be deposited by supersaturated meteoric waters (groundwater that precipitates the material in caves). This produces speleothems such as stalagmites...

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Word of the Day
megalophonous
  • Having a loud voice; vociferous; clamorous.
  • Of grand or imposing sound.
The word 'megalophonous' comes from Greek roots meaning 'big' and 'sound'.