Ruby is a pink to the blood-red colored gemstone, a variety of the mineral corundum. The word ruby comes from ruber, Latin for red. The color of a ruby is due to the element chromium. It is known as the most magnificent gem of all gems. Sapphire is a precious gemstone, a variety of the […]
The Gemstone Chrysoberyl is an aluminate of beryllium with the chemical formula BeAl₂O₄. The name chrysoberyl is derived from the Greek words “chrysos” and “beryllos”. Its meaning is “a gold-white spar”. It is known as a hard and durable gem after Sapphire. Chrysoberyl is an orthorhombic crystal mineral with 3.5 – 3.84 specific gravity and 8.5 hardness according to the Mohs hardness scale. It is a Biaxial (+) mineral with refractive indexes nα=1.745 nβ=1.748 nγ=1.754. Chrysoberyl can be found […]
Morganite is the peachy-pink variety of beryl with chemical formula Be3Al2(Si6O18). Named after American banker John. Pierpoint Morgan in 1911. It can be found colors such as pink, rose, peach, and salmon and pinkish Purple. Morganite’s colors are a result of the presence of manganese. It is also known as”Rose Beryl“. Good quality morganite is relatively […]
Aquamarine is a sky-blue to sea-green gem variety of beryl. It is mainly associated with granitic pegmatites. The name Aquamarine comes from the Latin aqua Marinus, meaning “water of the sea,” and refers to its sparkling ocean-like color. Its bluish-green color is caused by iron oxides within the chemical makeup of the stone. The first […]
Sapphire is a precious gemstone, a variety of the mineral corundum, consisting of aluminum oxide with trace amounts of elements such as iron, titanium, chromium, copper, or magnesium. Sapphire deposits are found in Eastern Australia, Thailand, Sri Lanka, China, Vietnam, Madagascar, Greenland, East Africa, and in North America in mostly in Montana. Madagascar, Sri Lanka, […]
Sapphire is a precious gemstone, a variety of the mineral corundum, consisting of aluminum oxide with trace amounts of elements such as iron, titanium, chromium, copper, or magnesium. Sapphire deposits are found in Eastern Australia, Thailand, Sri Lanka, China, Vietnam, Madagascar, Greenland, East Africa, and in North America in mostly in Montana. Madagascar, Sri Lanka, and Kashmir produce large quantities of fine […]
Beryl is a mineral composed of beryllium aluminum cyclosilicate with the chemical formula Be₃Al₂Si₆O₁₈. Beryl is hexagonal mineral with 7.5 – 8 hardness according to the more hardness scale. Beryl hexagonal Crystals can be up to several meters in the size. But, Double terminated crystals are very rare to see. Most people know Aquamarine and […]
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 […]
Zircon is a 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 tetragonal crystal system with 7.5 hardness according to the Mohs Hardness scale. Zircon is also very resistant to heat and corrosion […]
