 Hattarvågen bay on the west side of Borgøy | |
 Location in northern Rogaland county | |
| Geography | |
|---|---|
| Location | Rogaland, Norway |
| Coordinates | 59°20′37″N5°38′20″E / 59.3435°N 5.6390°E Coordinates: 59°20′37″N5°38′20″E / 59.3435°N 5.6390°E |
| Area | 4.5 km2 (1.7 sq mi) |
| Length | 4 km (2.5 mi) |
| Width | 2 km (1.2 mi) |
| Highest elevation | 292 m (958 ft) |
| Highest point | Borgøyhatten |
| Administration | |
| County | Rogaland |
| Municipality | Tysvær |
| Demographics | |
| Population | 13 (2011) |
| Pop. density | 2.9 /km2 (7.5 /sq mi) |
Borgøy (alternately spelled Borgøya or Borgøyna) is an island in Tysvær municipality in Rogaland county, Norway. The 4.5-square-kilometre (1.7 sq mi) island is located at the southern end of the Skjoldafjorden. South of the island lies the Hervikfjorden. The highest point on the island is the 292-metre (958 ft) tall mountain Borgøyhatten. [1]
An island or isle is any piece of sub-continental land that is surrounded by water. Very small islands such as emergent land features on atolls can be called islets, skerries, cays or keys. An island in a river or a lake island may be called an eyot or ait, and a small island off the coast may be called a holm. A grouping of geographically or geologically related islands is called an archipelago, such as the Philippines.
Tysvær is a municipality in Rogaland county, Norway. It is part of the Haugalandet region. The municipality is located on the Haugalandet peninsula on the northern side of the Boknafjorden, just east of the towns of Kopervik and Haugesund. The administrative centre of the municipality is the village of Aksdal. Other villages in the municipality include Dueland, Førre, Grinde, Hervik, Hindaråvåg, Nedstrand, Skjoldastraumen, Susort, Tysvær, and Yrke.
Rogaland[²ruːɡɑlɑn](
The island is accessible only by boat as there are no bridge or tunnel connections. The main population centre is the relatively flat southwestern coast of the island. Borgøy was the birthplace of painter Lars Hertervig. [2] The island has tin and granite mines.
Lars Hertervig was a Norwegian painter. His semi-fantastical work with motives from the coastal landscape in the traditional district of Ryfylke is regarded as one of the peaks of Norwegian painting.
Tin is a chemical element with the symbol Sn (from Latin: stannum) and atomic number 50. It is a post-transition metal in group 14 of the periodic table of elements. It is obtained chiefly from the mineral cassiterite, which contains stannic oxide, SnO2. Tin shows a chemical similarity to both of its neighbors in group 14, germanium and lead, and has two main oxidation states, +2 and the slightly more stable +4. Tin is the 49th most abundant element and has, with 10 stable isotopes, the largest number of stable isotopes in the periodic table, thanks to its magic number of protons. It has two main allotropes: at room temperature, the stable allotrope is β-tin, a silvery-white, malleable metal, but at low temperatures it transforms into the less dense grey α-tin, which has the diamond cubic structure. Metallic tin does not easily oxidize in air.
Granite is a common type of felsic intrusive igneous rock that is granular and phaneritic in texture. Granites can be predominantly white, pink, or gray in color, depending on their mineralogy. The word "granite" comes from the Latin granum, a grain, in reference to the coarse-grained structure of such a holocrystalline rock. Strictly speaking, granite is an igneous rock with between 20% and 60% quartz by volume, and at least 35% of the total feldspar consisting of alkali feldspar, although commonly the term "granite" is used to refer to a wider range of coarse-grained igneous rocks containing quartz and feldspar.
