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Exploring Limestone: A Quiz on Its Properties and Significance

This quiz tests your knowledge about limestone, its properties, formation, and significance in geology and architecture.

1 ________ is a banded, compact variety of limestone formed along streams, particularly where there are waterfalls and around hot or cold springs.

2 Because of impurities, such as ________, sand, organic remains, iron oxide and other materials, many limestones exhibit different colors, especially on weathered surfaces.

3 What type is thing is Limestone?

4 It is most common in the tropics, and it is known throughout the ________ (see Taylor and Wilson, 2003).

5 Limestone is a sedimentary rock composed largely of the mineral ________ (calcium carbonate: CaCO3).

6 Thin-section view of a Middle ________ limestone in southern Utah.

7 Like most other sedimentary rocks, limestones are composed of grains, however, around 80-90% of limestone grains are skeletal fragments of marine organisms such as ________ or foraminifera.

8 These include limestone pavements, pot holes, ________, caves and gorges.

9 Many famous buildings in London are built from ________.

10 Limestone and (to a lesser extent) marble are reactive to acid solutions, making ________ a significant problem to the preservation of artifacts made from this stone.

💡 Interesting Facts

  • the limestone quarries near Ein Yabrud in the Judean Mountains have produced the only fossils for the extinct snakes Pachyrhachis and Haasiophis.
  • every year the Portway trunk road in Bristol is closed to traffic to allow inspection of the limestone cliffs of the Avon Gorge and to allow remedial work on loose rocks to be carried out.
  • the Spanish-introduced limestone house of the Ivatans was designed to withstand typhoons.
  • the district Nadderud in Norway, now known for the multi-purpose stadium Nadderud stadion, once delivered limestone to Akershus Fortress in 1629 and the Royal Palace, Oslo, in 1827.
  • underwater visibility can reach 80 metres (260 ft) in the limestone sinkholes of Australia's Ewens Ponds.
  • authentic Picón Bejes-Tresviso cheese must be matured in traditional limestone caves until covered in Brevibacterium linens, the bacterium responsible for human foot odour.
  • Yana in Karnataka, India, offers treks to two rock outcrops of black crystalline limestone (pictured) that house a cave temple where a "self-manifest" Shiva Linga is venerated.
  • Eldon Hill (quarry pictured) in the Peak District, England lost much of its area through limestone quarrying between 1950 and 1999.
  • St. Mary's, the first village planned in the Township of Bexley, was never built because the site lay above a bed of limestone.
  • St John the Baptist's Church, Papworth St Agnes, Cambridgeshire, is constructed in alternating blocks of limestone and fieldstones, forming a chequerboard pattern.
  • University Hall, Northwestern University's oldest building, is composed of Joliet limestone - the same kind used to build the Chicago Water Tower.
  • 461 Fifth Avenue is a post-modern skyscraper noted for its use of a pre-cast concrete finish to mimic the appearance of limestone.