Definition of
flagstone
A flagstone is a smooth and flat rock, of little thickness. Are stones are usually used in tiled and in rooftops.
The limestone slabs, shale and sandstone They are among the most used. Many times the use of one or another slab depends on the availability that exists at the regional level. The use of limestone or equis slate to make roofs of houses is especially common in areas of mountain.
It is understood by equist to the group of rocks that is characterized by the predominance of minerals laminar, which improves its fragmentation into thin layers. The metamorphic equison the other hand, are metamorphic rocks, that is, they are formed by the modification of others through the process known as metamorphism.
Another related concept is limestonea sedimentary rock that is composed mainly of carbonate calcium, although it is common for it to have traces of other carbonates, such as magnesite. The limestone can also have in its composition a certain percentage of minerals such as hermatite, clay, quartz and siderite, which can modify its degree of coherence and its color.
The micaceous sandstone tile usually comes from quarries or natural stones. Its thickness is greater than that of slate, a rock that is also metamorphic, although homogeneous, with a fine grain, which is formed by the compaction of shales by low-grade metamorphism. In general, its color is dark blue and its material is opaque. It usually has a structure of sheets or flat slabs. One of its disadvantages is that it has a considerable weight, with which the structure on which it rests must be very rigid.
A name that some experts give to the micaceous sandstone tile is phonolith. This is due to the sound it makes when struck, which is similar to that of a bell. The word phonolith consists of two parts: the prefix phone-whose origin goes back to the Greek language and denotes the concepts of «sound» or «voice», and the suffix -lithowhich also comes from the Greek and means “stone”.
A example of the use of flagstones can be found in the so-called black architecture. In this case, slate slabs are used in householdslivestock or agricultural structures and even road infrastructure such as bridges and roads.
The black architecture based on slate slabs It is very common in certain Spanish regions. This is due to the abundance of slate in the zonewhich helped define the architectural style of the place.
Some of the slabs come from volcanic areas, and these are part of the group known as andesites precisely because they are some of the ones that stand out in the Andes mountains. Thanks to the presence of some minerals, such as iron and manganese oxide, in certain rocks you can see a reddish, greenish or bluish hue on a base that is usually gray.
flagstone It is also the name that identifies a commune of Chili already a municipality of bolivian. In the Chilean case, it is a city which is part of the province of biobío. It has more than 22,000 inhabitants and has several lagoons among its main tourist attractions.
In Bolivian territory, meanwhile, flagstone It is a town in the province The Andesin the department of Peace. It is located at a distance of 35 kilometers from the city of Peace3860 meters from altitude. Some 24,000 people live in flagstone.
lajas (in the plural), finally, is a municipality of Puerto Rico (It is known as “the town of the stubborn pineapple”) and another of Cuba (whose full name is Saint Elizabeth of the Lajas).