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Benitoite is a rare mineral found in very few locations including San Benito County, California, Japan and Arkansas. In the San Benito occurrence, it is found in natrolite veins within glaucophane schist within a serpentinite body. In Japan, the mineral occurs in a magnesio-riebeckite-quartz-phlogopite-albite dike cutting a serpentinite body. [5]
Sri Lanka, geologically speaking is an extremely old country. Ninety percent of the rocks of the island are of Precambrian age, 560 million to 2,400 million years ago. The gems form in sedimentary residual gem deposits, eluvial deposits, metamorphic deposits, skarn and calcium-rich rocks. Nearly all the gem formations in Sri Lanka are located ...
Lankem Ceylon PLC is a chemicals, paints and consumer goods manufacturing company in Sri Lanka. The company also engaged in the hospitality industry by owning and operating resorts in Sri Lanka. The company is incorporated in 1964 by Royal Dutch Shell and listed on the Colombo Stock Exchange in 1970.
The Pettah Floating Markets are located on Bastian Mawatha in Pettah, a neighborhood in Colombo, Sri Lanka, and consist of 92 trade stalls, with a number of the stalls established on boats on Beira Lake. [1] The floating market serves as a tourist attraction selling local produce and local handicraft. [2]
Pabstite is a barium tin titanium silicate mineral that is found in contact metamorphosed limestone. It belongs to the benitoite group of minerals. The chemical formula of pabstite is Ba(Sn,Ti)Si 3 O 9. It is found in Santa Cruz, California. The crystal system of the mineral is hexagonal.
It is the capital city of Sabaragamuwa Province, as well as the Ratnapura District, and is a traditional centre for the Sri Lankan gem trade. It is located on the Kalu Ganga (Black River) in south-central Sri Lanka, some 101 km (63 mi) southeast of the country's capital, Colombo. Ratnapura is also spelled as Rathnapura.
Serendibite is an extremely rare silicate mineral that was first discovered in 1902 in Sri Lanka by Dunil Palitha Gunasekera and named after Serendib, the old Arabic name for Sri Lanka. The mineral is found in skarns associated with boron metasomatism of carbonate rocks where intruded by granite .
Clear and well-colored stones are rare as the radioactivity tends to degrade the crystal matrix over time in a process known as metamictization. The type locality is Eheliyagoda, Ratnapura District, Sabaragamuwa Province, Sri Lanka, [2] where it was first described in 1955 by F. L. D. Ekanayake, a Sri Lankan scientist, [5] [6] and it is named ...