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Category: Gem Mining

Sunset Padparadscha with Green Sapphire

Nice colors are a big dream when we work with gemstones. There is an unheated green sapphire and padparadscha sapphire from Sri Lanka and Madagascar. Dreams never end. When I saw both stones in the lot, I imagined. Beautiful sunset through the green forest Yellow Sapphire and Pink Sapphire can be seen in the market […]

Bi-color Sapphire – Wedding Stone

Yellow and blue colors are very interesting colors in the Sapphire family. Yellow Sapphire is yellow color variety of corundum Family and called as “pushparaga“. The names derived from Sinhalese Sanskrit word. Blue Sapphire is also a very valuable and popular stone in the corundum family. When Both colors have in one stone separately, It’s […]

Zircon Heat Treatment Part (ii) – Traditional Oxireducing

We did zircon heat-treatment article before with traditional oxidising method. You can see that, We were able to get good yellow color from dark brownish purple zircon. In this time, We did oxireducing by using traditional method. That heating method has been using in Sri Lanka for 1000 years. Old businessmens say, their grand fathers […]

Traditional Gem Bearing Gravels Washing and Washing by Machines

Mining on the island of Sri Lanka goes back at least 2000 years. We have our own heritage in the mining arena. Our island is called Gem Island & also “Ratna Dweepa” because of the large variety of gems found here. Traditional gem mining methods have been using in Sri Lanka for 2000 years. Most […]


Fluorite is the mineral form of calcium fluoride, CaF₂. It’s a cubic crystal system mineral with 4 Mohs according to the Mohs hardness scale. It belongs to the halide minerals Fluorite is found in colors such as Green, Purple, Blue, Yellow, White, Black, Pink, Red, Brown, Orange. Pink, Blue and Color change fluorites are rare. […]

Madagascar Sapphire

Madagascar is an island country in the Indian Ocean, approximately 400 kilometers off the coast of East Africa. At 592,800 square kilometers, Madagascar is the world’s 2nd largest island country. Firstly, Sapphire deposits were found in Madagascar in 1998 it created a sensation in the gems world. The major sapphire deposits discovered in the tiny village […]


Fibrolite is an aluminosilicate mineral with the chemical formula Al2SiO5. Fibrolite is fibrous form the gemstone variety of sillimanite. Although fibrolite has priority over sillimanite, the two species were not ultimately recognized as the same species until about 1854 by James Dwight Dana. Named in 1802 by Jacques Louis Comte de Bournon because of its fibrous habit. It is an Orthorhombic […]

Kornerupine Big Rough Stone

Natural Kornerupine facet grade huge gem piece found from Sri Lankan Rare Gemstone mining area. It can be seen yellowish chrom green and greenish yellow Pleochroism as a directional properties. Kornerupine is a rare boro-silicate mineral with the formula (Mg, Fe²⁺)₄(Al, Fe³⁺)₆(SiO₄, BO₄)₅(O, OH)₂. It has a specific gravity of 3.3 to 3.34 and Colours such as […]

Bi-Color Spinel Octahedron Crystal

Natural Bi-Color Spinel Crystal Sri Lanka Ceylon Natural Bi-Color Spinel Crystal from Alluvial Gem Deposit. It was bit deep color but, Inside Color is really nice. It is 5.05 Cts weight transported octahedron crystal from Rakwana, Sri Lanka. Spinel is the magnesium-aluminum member of the larger spinel group of minerals with chemical formula MgAl₂O₄. Spinel is […]