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Amongst the alloys made of gold, silver, and copper, the hardest is the 18.1 K pink gold (75.7% gold and 24.3% copper). An alloy with only gold and silver is the hardest at 15.5 K (64.5% gold and 35.5% silver). During ancient times, due to impurities in the smelting process, gold frequently turned a reddish color.
Wootz steel is a crucible steel characterized by a pattern of bands and high carbon content. These bands are formed by sheets of microscopic carbides within a tempered martensite or pearlite matrix in higher- carbon steel, or by ferrite and pearlite banding in lower-carbon steels. It was a pioneering steel alloy developed in southern India in ...
Iron alloys are most broadly divided by their carbon content: cast iron has 2–4% carbon impurities; wrought iron oxidizes away most of its carbon, to less than 0.1%. The much more valuable steel has a delicately intermediate carbon fraction, and its material properties range according to the carbon percentage: high carbon steel is stronger but more brittle than low carbon steel.
Kandyan jewellery comes from the hill capital of Ceylon or Sri Lanka. The Kandyan Kingdom lasted till 1815 resulting in the original sets of jewellery and designs still being preserved and worn by Kandyan families today. Kandyan jewellery is handmade and was designed specifically for the royal families. It carries symbols of wealth, prosperity ...
Traditional Gem Fields of Sri Lanka. Sri Lanka ’s gem industry has a very long and colorful history. Sri Lanka was affectionately known as Ratna-Dweepa which means Gem Island. The name is a reflection of its natural wealth. Marco Polo wrote that the island had the best sapphires, topazes, amethysts, and other gems in the world. [1]
Kahavanu obverse. Kahavanu is a medieval currency from Sri Lanka.. This anonymous gold coinage appears to have been initiated shortly before Rajaraja Chola invaded Lanka in 990 AD, and struck through the period when the Cholas dominated the island (1017-1070), and continued by closely similar coins struck for Vijayabahu (1055-1110) after he re-established Sinhala independence in 1070.
Adam's Peak is a 2,243 m (7,359 ft) tall conical sacred mountain located in central Sri Lanka. [1] [2] It is well known for the Sri Pada (Śrī Pāda ; Sinhala: ශ්රී පාද, 'sacred footprint'), a 1.8 m (5 ft 11 in) rock formation near the summit whose name is also used for the mountain itself.
Sri Lanka (formerly Ceylon) is an island nation south of India. The Sri Lankan city of Galle is said to be the city of Tarshish, to which King Solomon sent merchant ships. The presence of Jews in Sri Lanka is alluded to by the 9th-century Muslim traveler Abu Za’id al-Ḥasan Sirāfī and the 12th-century Muslim geographer al-Idrīsī.