Vietnamese Red Spinel Rough from Luc-Yen Mine. I have passed many Red Spinels in my gem life. but, It was hard to find like this bright color Red Spinel with low Iron content. Spinel is the magnesium–aluminum member of the larger spinel group of minerals with chemical formula MgAl₂O₄. Spinel is actually a large group […]
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. To visit Sri Lanka is to experience one of the great gem sources and […]
Geuda is a form of the mineral corundum. Geuda is found primarily in Sri Lanka. It’s a semitransparent and milky appearance due to rutile inclusions. Geuda is used to improve its color by heat treatment. Some geuda varieties turn to a blue color after heat treatments and some turn to red after oxidizing. Also, Kowangu pushparaga turns to yellow […]
Zircon is nesosilicates group mineral. Its corresponding chemical formula is ZrSiO4. The name derives from the Persian zargun, meaning “gold-hued”. Zircon is a popular gemstone that has been used for nearly 2000 years. The crystal structure of zircon is a tetragonal crystal system with 7.5 hardness according to the Mohs Hardness scale. Zircon is also very resistant to heat and […]
Garnets are a group of silicate minerals. All species of garnets possess similar physical properties and crystal forms but differ in chemical composition Such as Pyrope Mg3Al2Si3O12, Almandine Fe3Al2Si3O12, Spessartine Mn3Al2Si3O12, Andradite Ca3Fe2Si3O12, Grossular Ca3Al2Si3O12, Uvarovite Ca3Cr2Si3O12. Most Garnets have a variable magnetic attraction. This characteristic also uses to identify garnet. Pyrope – almandine – […]
Kornerupine 柱晶石 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 Colorless, white, grey, greenish, bluish, brown, black. Some Stones show strong Pleochroism such as colorless to green, colorless, pale brownish yellow, pale yellowish green, pale brownish green and […]
iolite is a magnesium iron aluminium cyclosilicate Mineral. also Know as ” Cordierite”. It is magnesium rich Stone chemical formula (Mg,Fe)2Al4Si5O18. that iron rich mineral called ” sekaninaite”. Healing Properties 👇 Iolite are stones of vision, stimulate the imagination and this may aid their use as shamanic stones. It activates the third eye and facilitates visualisation and intuitive […]
Ceylon Natural Enstatite 頑火輝石（頑辉石） Enstatite is a mineral; the magnesium endmember of the pyroxene silicate mineral series enstatite – ferrosilite. Emerald green variety of enstatite is called chrome-enstatite. Mostly, That green is because of Chromium. Even though, Enstatite has weak double reflection (DR), It has strong Pleochroism. • Formula : MgSiO3 • Crystal System : […]
Extremely Rare Gemstone – Natural Grandidierite Grandidierite is an extremely rare mineral and gem that was first discovered in 1902 in southern Madagascar. Grandidierite is nesosilicates mineral with the chemical formula (Mg, Fe2+)(Al, Fe3+)3(SiO4)(BO3)O2. It is found colors such as Bluish-green, greenish-blue with 7½ hardness according to the more hardness scale. Grandidierite can be seen […]
The island of Sri Lanka has a heritage for gem mining and trading that dates back 2000 years. Sri Lanka is a tropical island situated in the Indian Ocean. Sri Lanka namesake as the ‘Gem Island’ and ‘Island of Gems’ (Ratna Dweepa), with its abundance of corundum gems, chrysoberyl and alexandrite, garnet, moonstone, peridot, spinel, […]
