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Oltu Stone
Oltu stone ( tr, Oltu taşı) is a kind of jet (lignite), jet found in the region around Oltu town within Erzurum Province, eastern Turkey. The organic substance is used as semi-precious gemstone in manufacturing jewellery. Location and extraction Oltu stone, sometimes called also "Erzurum stone", is principally mined in the villages northeast of Oltu town, around Tutlu Dağı (Yasak Dağ) as well as in Alatarla, Hankaskışla and Çataksu villages. The mountainous, rough region with steep slopes is high. Oltu stone beds are formed when fossilized trees are subject to diastrophism resulting in folding. Beds of this organic substance are in thickness. Extraction is done by digging narrow tunnels and shafts below ground. There are around 600 quarries in the region. Properties It is a very dense mineraloid, mineral-like substance of the nature of coal that does not demonstrate crystallinity. It generally comes in black, but can also be velvet-black, blackish brown, gray or greeni ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jet (lignite)
Jet is a type of lignite, the lowest rank of coal, and is a gemstone. Unlike many gemstones, jet is not a mineral, but is rather a mineraloid. It is derived from wood that has changed under extreme pressure. The English noun ''jet'' derives from the French word for the same material, (modern French ), ultimately referring to the ancient town of Gagae. Jet is either black or dark brown, but may contain pyrite inclusions which are of brassy colour and metallic lustre. The adjective " jet-black", meaning as dark a black as possible, derives from this material. Origin Jet is a product of decomposition of wood from millions of years ago, commonly the wood of trees of the family Araucariaceae. Jet is found in two forms, hard and soft. Hard jet is the result of carbon compression and salt water; soft jet may be the result of carbon compression and fresh water. Despite the name they both occupy the same area of the Mohs scale with the difference being that soft jet is more likely to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bracelet
A bracelet is an article of jewellery that is worn around the wrist. Bracelets may serve different uses, such as being worn as an ornament. When worn as ornaments, bracelets may have a supportive function to hold other items of decoration, such as charms. Medical and identity information are marked on some bracelets, such as allergy bracelets, hospital patient-identification tags, and bracelet tags for newborn babies. Bracelets may be worn to signify a certain phenomenon, such as breast cancer awareness, or for religious/cultural purposes. If a bracelet is a single, inflexible loop, it is often called a ''bangle''. When it is worn around the ankle it is called an ''ankle bracelet'' or ''anklet''. A ''boot bracelet'' is used to decorate boots. Bracelets can be manufactured from metal, leather, cloth, plastic, bead or other materials, and jewelry bracelets sometimes contain jewels, rocks, wood, shells, crystals, metal, or plastic hoops, pearls and many more materials. O ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Organic Gemstones
Organic may refer to: * Organic, of or relating to an organism, a living entity * Organic, of or relating to an anatomical organ Chemistry * Organic matter, matter that has come from a once-living organism, is capable of decay or is the product of decay, or is composed of organic compounds * Organic compound, a compound that contains carbon ** Organic chemistry, chemistry involving organic compounds Farming, certification and products * Organic farming, agriculture conducted according to certain standards, especially the use of stated methods of fertilization and pest control * Organic certification, accreditation process for producers of organically-farmed products * Organic horticulture, the science and art of growing fruits, vegetables, flowers, or ornamental plants by following the essential principles of organic agriculture * Organic products, "organics": ** Organic food, food produced from organic farming methods and often certified organic according to organic farming stand ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mining In Turkey
Mining is the extraction of valuable minerals or other geological materials from the Earth, usually from an ore body, lode, vein, seam, reef, or placer deposit. The exploitation of these deposits for raw material is based on the economic viability of investing in the equipment, labor, and energy required to extract, refine and transport the materials found at the mine to manufacturers who can use the material. Ores recovered by mining include metals, coal, oil shale, gemstones, limestone, chalk, dimension stone, rock salt, potash, gravel, and clay. Mining is required to obtain most materials that cannot be grown through agricultural processes, or feasibly created artificially in a laboratory or factory. Mining in a wider sense includes extraction of any non-renewable resource such as petroleum, natural gas, or even water. Modern mining processes involve prospecting for ore bodies, analysis of the profit potential of a proposed mine, extraction of the desired materials ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gemstones
A gemstone (also called a fine gem, jewel, precious stone, or semiprecious stone) is a piece of mineral crystal which, in cut and polished form, is used to make jewelry or other adornments. However, certain rocks (such as lapis lazuli, opal, and obsidian) and occasionally organic materials that are not minerals (such as amber, jet, and pearl) are also used for jewelry and are therefore often considered to be gemstones as well. Most gemstones are hard, but some soft minerals are used in jewelry because of their luster or other physical properties that have aesthetic value. Rarity and notoriety are other characteristics that lend value to gemstones. Apart from jewelry, from earliest antiquity engraved gems and hardstone carvings, such as cups, were major luxury art forms. A gem expert is a gemologist, a gem maker is called a lapidarist or gemcutter; a diamond cutter is called a diamantaire. Characteristics and classification The traditional classification in the West ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fossil Resins
A fossil (from Classical Latin , ) is any preserved remains, impression, or trace of any once-living thing from a past geological age. Examples include bones, shells, exoskeletons, stone imprints of animals or microbes, objects preserved in amber, hair, petrified wood and DNA remnants. The totality of fossils is known as the ''fossil record''. Paleontology is the study of fossils: their age, method of formation, and evolutionary significance. Specimens are usually considered to be fossils if they are over 10,000 years old. The oldest fossils are around 3.48 billion years old to 4.1 billion years old. Early edition, published online before print. The observation in the 19th century that certain fossils were associated with certain rock strata led to the recognition of a geological timescale and the relative ages of different fossils. The development of radiometric dating techniques in the early 20th century allowed scientists to quantitatively measure the absol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prayer Beads
Prayer beads are a form of beadwork used to count the repetitions of prayers, chants, or mantras by members of various religions such as Hinduism, Buddhism, Shinto, Umbanda, Islam, Sikhism, the Baháʼí Faith, and some Christian denominations, such as the Roman Catholic Church, the Lutheran Church, the Oriental Orthodox Churches, and the Eastern Orthodox Churches. Common forms of beaded devotion include the mequteria in Oriental Orthodox Christianity, the ''chotki'' in Eastern Orthodox Christianity, the Wreath of Christ in Lutheran Christianity, the Dominican rosary of the Blessed Virgin Mary in Roman Catholic Christianity, the ''dhikr'' (remembrance of God) in Islam, the ''japamala'' in Buddhism and Hinduism, and the ''Jaap Sahib'' in Sikhism. Origins and etymology Beads are among the earliest human ornaments and ostrich shell beads in Africa date to 10,000 BC.''Beads and bead makers: gender, material culture, and meaning'' by Lidia D. Sciama, Joanne Bubolz Eicher 199 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cigarette Holder
A cigarette holder is a fashion accessory, a slender tube in which a cigarette is held for smoking. Most frequently made of silver, jade or bakelite (popular in the past but now wholly replaced by modern plastics), cigarette holders were considered an essential part of ladies' fashion from the early 1910s through early to the mid 1970s. Purpose The holder was a practical accessory and served several purposes: * The primary use was to prevent ash falling onto a woman's clothes, especially since women didn't wear smoking jackets. This is also why longer holders were for more formal occasions, which usually had more elaborate dress codes. * Kept side-stream smoke further from the smoker's eyes and out from under the lady's hat, which often had a wider brim than a man's hat. * Helped prevent nicotine staining the fingers and gloves. * Reduced staining of the teeth. * Kept the thin cigarette paper from sticking to, and tearing on, the smoker's lips. * Cooled and mellowed the smoke ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Smoking Pipe (tobacco)
A tobacco pipe, often called simply a pipe, is a device specifically made to smoke tobacco. It comprises a chamber (the bowl) for the tobacco from which a thin hollow stem (shank) emerges, ending in a mouthpiece. Pipes can range from very simple machine-made briar models to highly prized hand-made artisanal implements made by renowned pipemakers, which are often very expensive collector's items. Pipe smoking is the oldest known traditional form of tobacco smoking. History Some cultures of the indigenous peoples of the Americas smoke tobacco in ceremonial pipes, and have done so since long before the arrival of Europeans. For instance the Lakota people use a ceremonial pipe called čhaŋnúŋpa. Other cultures of the indigenous peoples of the Americas smoke tobacco socially. The tobacco plant is native to South America but spread into North America long before Europeans arrived. Tobacco was introduced to Europe from the Americas in the 16th century and spread around the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tie Pin
A tie pin (or tiepin, also known as a stick pin/stickpin) is a neckwear-controlling device, originally worn by wealthy English gentlemen to secure the folds of their cravats. History 19th century Tie pins were first popularized at the beginning of the 19th century. Cravats were made of silk, satin, lace and lightly starched cambric, lawn cloth, and muslin. Stickpins were necessary accoutrements to keep these expensive fabrics in place and safe. They commonly used pearls and other precious gemstones set in gold or other precious metals and were designed specifically for their owners. By the 1860s, the English upper middle classes embraced wearing cravats with a consequently lower quality of materials and designs used in both the neckwear and in the stickpins used to keep it in place. By the 1870s, Americans had embraced stickpins and designs were mass-produced which included animal heads, horse shoes, knife and fork motifs, crossed pipes, wishbones, bugs, flowers, shields an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Necklace
A necklace is an article of jewellery that is worn around the neck. Necklaces may have been one of the earliest types of adornment worn by humans. They often serve ceremonial, religious, magical, or funerary purposes and are also used as symbols of wealth and status, given that they are commonly made of precious metals and stones. The main component of a necklace is the band, chain, or cord that wraps around the neck. These are most often rendered in precious metals such as gold, silver, and platinum. Necklaces often have additional attachments suspended or inset into the necklace itself. These attachments typically include pendants, lockets, amulets, crosses, and precious and semi-precious materials such as diamond, pearls, rubies, emeralds, garnets, and sapphires. They are made with many different type of materials and are used for many things and sometimes classed as clothing. Historical Necklaces Prehistoric neckware Prehistoric peoples often used natural materi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oltu
Oltu (; ) is a town and district of Erzurum Province in the Eastern Anatolia region of Turkey. The mayor is Necmettin Taşçı, from the AKP. The population was 31,087 in 2020. History An inscription found in Oltu’s castle has been dated to the 7th century A.D.(see below), but the settlement is known to have been established much earlier. Hakobyan, Tadevos Kh. ''«Օլթի»'' (Olti). Armenian Soviet Encyclopedia. vol. xi. Yerevan: Armenian Academy of Sciences, 1986, pp. 527-528. The city-fortress had once belonged to the Mamikonian ''nakharars'' and later passed into the hands of the Bagratunis. Administratively, it was found within the borders of the region of Vok'aghe in the province of Tayk. The first mention of Oltu as a fortified settlement is in the 9th century when the Georgian Bagratids occupied this region. After the death of the Iberian Kuropalates David in 1000, the troops of Emperor Basil II occupied the castles and towns in the region of Tao-Tayk‛, which includ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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