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Agate (/ ˈ æ ɡ ɪ t / AG-it) is a variety of chalcedony, [1] which comes in a wide variety of colors. Agates are primarily formed within volcanic and metamorphic rocks.The ornamental use of agate was common in ancient Greece, in assorted jewelry and in the seal stones of Greek warriors, [2] while bead necklaces with pierced and polished agate date back to the 3rd millennium BCE in the Indus ...
Tamil people have historically been connoisseurs of fine golden jewellery, which has a history predating the Sangam period in the Indian subcontinent. Ancient Tamil literature lists out the different types of jewellery worn by women historically from head to toe. Apart from gold, jewellery was also fashioned out of silver, copper and brass.
Agate “Agate is earthy, warm and rich,” Salzer says, noting that it exists in many colors. “Look for antique Victorian banded Enlish and Scottish agates in deep orange, browns, cinnamon, and ...
A stone is ground into shape (often a cabochon or a short, wide cylinder) and polished to a shine. Sometimes the flat surface is engraved with a religious motto in Arabic, which is sometimes inlaid with gold. The finished gem is then mounted on a ring according to the stones finished size. Both men and women wear aqiq rings as jewellery.
The agate has a hollow center, partially containing water. Enhydro agates can also contain debris or petroleum. Because the cavity is not full, the agate can produce sound from being shaken. Agates vary in size. The largest recorded agate was found in Fuxin City, China, with a diameter of 63 cm (24.8 in) and weighing 310 kg (683 lbs). [4]
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Significant findings at Arikamedu include numerous Indo-Pacific beads, which facilitated fixing the period of its origin. Red and black ceramics—known as megalithic stones or Pandukal in Tamil meaning "old stones" and used to mark graves—have existed at the site even prior to dates of the trading post, and also in later periods.
The charnockite rocks at St. Thomas Mount (about 60 m (196.9 ft) high above ground) is located in the southern part of Chennai city. Chennai, as the capital of Tamil Nadu, is very well connected by road, rail, sea and air with rest of the country and the world. The Chennai International Airport is 3 km (1.9 mi) away from the Mount.