Turkey/Erzurum (Taşhan Oltutaşı - Oltu Stone ) Part 5

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Oltutaşı - Oltu Stone/Erzurrum:
Oltutaşı (Oltu stone in Turkish) — This is a kind of amber which is extracted only in Oltu, a town near Erzurum. It is mostly chipped into jewelry, with different levels of quality and correspondingly different levels of prices. Look around in Erzurum. Taşhan is the best place to shop for Oltutaşı and it is also an interesting traditional building.
Silver — In jewelry shops in the center or on Taşmağazalar street, fancy authentic silver jewelry can be found.
Oltu stone (Turkish: Oltu taşı), aka black amber, is a kind of 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. 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 1,600–1,800 m (5,200–5,900 ft) high.
Oltu stone beds are formed when fossilized trees are subject to diastrophism resulting in folding. Beds of this organic substance are 70–80 cm (28–31 in) in thickness. Extraction is done by digging narrow tunnels and shafts below ground. There are around 600 quarries in the region. It is a very dense 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, grey or greenish.Oltu stone's most interesting characteristic is its softness when excavated. It only begins to harden when exposed to the air. For this reason, it can be carved very easily.It attracts, by way of static electricity, light substances like dust when rubbed. Oltu stone burns bursting in flames, and leaves ash behind.To distinguish true Oltu stone from the artificial jet, it is rubbed against unglazed porcelain. Real Oltu stone will leave a chocolate brown streak. The structure of Oltu stone, which is remarkably like the wood, can be seen under magnification. Oltu stone is cut or carved in desired form and polished to manufacture various decorative ornaments and utensils like rings, earrings, necklaces, bracelets, tie pins, smoking pipes, cigarette holders, and prayer beads.Wikipedia

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