NAON BATU ALAM NU LEUMEUN JEUNG DIMANA BISA DIPAKEUN? batu bentang

Naha sababaraha batu 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.

Batu anu henteu teratur

Batu sédimén

Batu kapur, sandstone sareng shale mangrupikeun jinis batu sédimén anu paling umum. Ieu kabentuk ngaliwatan tekanan tremendous, leuwih jutaan taun, bearing handap on sédimén nu geus fallen ka dasar sagara.

Batu tulis

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.

Batu kapur

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.

Batu pasir

Sandstone meureun batu wangunan paling ilahar dipake saméméh 1800, pikeun sagalana ti sasak ka wangunan stately. Sakumaha anu tiasa disimpulkeun tina namina, éta kabentuk nalika keusik, bahan organik, kalsit sareng rupa-rupa mineral sanésna ngahiji dina tekenan anu luar biasa salami millennia. Sadia sareng tékstur kasar atanapi halus sareng disayogikeun sacara tradisional dina matt finish. Utamana krim, beureum atawa kulawu di Inggris, warna na gumantung kana mineral tambahan dikandung dina eta. Silika masihan kaputihan, sedengkeun beusi bakal masihan warna semu beureum-coklat. Wewengkon utama aplikasina nyaéta témbok sareng lantai, atanapi paving exterior.

Marmer

Marmer mangrupa turunan tina kapur, dibentuk ngaliwatan métamorfosis panas kolosal sarta tekanan salila jutaan taun. Sanajan kawilang lemes dibandingkeun batu sejen, marmer condong Polandia incredibly ogé. Sacara tradisional marmer dipaké dina panto tur mantuan pikeun nyieun finish high-end.