APA ITU WATU ALAM LEMBUT lan ing endi sing bisa digunakake? watu lanskap

Kok sawetara watu alam 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.

Watu sing ora teratur

Batu sedimen

Batu gamping, watu pasir lan serpih minangka jinis watu sedimen sing paling umum. Iki dibentuk liwat tekanan sing luar biasa, sajrone jutaan taun, nandhang endapan sing tiba ing dhasar segara.

Slate

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.

watu gamping

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.

watu pasir

Sandstone mbokmenawa watu bangunan sing paling umum digunakake sadurunge 1800, kanggo kabeh saka kreteg kanggo bangunan megah. Kaya sing bisa disimpulake saka jenenge, dibentuk nalika pasir, bahan organik, kalsit lan macem-macem mineral liyane digabungake ing tekanan sing luar biasa sajrone millennia. Kasedhiya kanthi tekstur kasar utawa alus lan diwenehake kanthi tradisional kanthi finish matt. Utamane krim, abang utawa abu-abu ing Inggris, werna gumantung saka mineral tambahan sing ana ing njero. Silika menehi keputihan, dene wesi bakal menehi warna abang-coklat. Wilayah utama aplikasi yaiku tembok lan lantai, utawa paving njaba.

Marmer

Marmer minangka turunan saka watu gamping, dibentuk liwat metamorfosis panas lan tekanan kolosal sajrone jutaan taun. Senajan relatif alus dibandhingake watu liyane, marmer cenderung polish luar biasa uga. Biasane marmer digunakake ing lawang lan mbantu nggawe finish dhuwur.