KISA WÒCH NATIRÈL PI DOUS E KI KOTE YO KA ITILIZE? wòch jaden flè

Poukisa gen kèk wòch natirèl considered to be soft when they all appear to be hard? The answer lies within ‘relative’ hardness. Mohs scale of hardness was invented in 1812 and compares the relative hardness of ten minerals. Diamond is the hardest and rates a 10, while granite is the toughest natural stone at 6. Limestone comes in at 3 as does its metamorphic counterpart, marble. Softer stone is easier to dress or carve but does not wear or weather quite as well as harder stone. Here we discuss some of the more popular soft stones along with suitable applications.

Wòch iregilye

Wòch sedimantè

Limestone, grè ak ajil feyte se kalite ki pi komen nan wòch sedimantè. Sa yo te fòme atravè presyon fòmidab, pandan plizyè milyon ane, ki te pote desann sou sediman ki te tonbe nan fon lanmè a.

Adwaz

The layers in slate are described as being “foliated” and they are easily split apart to create whatever thickness is required. UK slate is considered to be hard and was traditionally used as roofing, while soft slate is found in China, Spain, Italy and the USA. With a broad range of natural slate colours, a multiple array of designs can be achieved, from contemporary to classic, rustic to refined. Slate is often recommended for high traffic areas, thanks to its remarkably durable composition. It is also non-porous and does not easily react with acid liquids. It is fire proof, weather resistant and achieves good slip resistance dues to its riven finish.

Limestone

Limestone is a very common building material and is formed mainly from the mineral calcite, derived from the calcium in bones and seashells deposited over the millennia and forced together through pressure. While it also contains magnesium, it is harder and more weather resistant, and can also be polished. Portland stone from the eponymous island in Dorset is probably the single most famous type of limestone and was used to build many of London’s great buildings. It is used for external cladding as well as paving, fireplaces and other internal and external decorative features. Its soft colours are its trademark visual attributes.

Sandstone

Sandstone se te pwobableman wòch bilding ki pi souvan itilize anvan 1800, pou tout bagay soti nan pon ak bilding majestueux. Kòm yo ka dedwi nan non li, li fòme lè sab, matyè òganik, kalsit ak yon varyete de lòt mineral yo te fusion ansanm anba presyon enkwayab sou milenè yo. Disponib ak swa yon teksti koryas oswa amann ak tradisyonèlman apwovizyone nan yon fini mat. Prensipalman krèm, wouj oswa gri nan UK a, koulè li depann sou mineral yo adisyonèl ki genyen nan li. Silica bay blanch, pandan y ap fè pral bay yon koulè wouj-mawon. Zòn prensipal aplikasyon li yo se mi yo ak planche, oswa pavaj eksteryè.

Marble

Marble se yon derive nan kalkè, ki te fòme nan metamòfoz la nan chalè kolosal ak presyon sou dè milyon de ane. Malgre ke relativman mou konpare ak lòt wòch, mab gen tandans poli ekstrèmman byen. Tradisyonèlman, mab yo itilize nan pòt yo epi li ede yo kreye yon fini-wo fen.