Amethyst

Amethyst is a violet variety of quartz often used in jewelry. The name comes from the ancient Greek ἀ a- (“not”) and μέθυστος méthystos (“intoxicated”), a reference to the belief that the stone protected its owner from drunkenness. The ancient Greeks wore amethyst and made drinking vessels decorated with it in the belief that it…

Topaz

Pure topaz is colorless and transparent but is usually tinted by impurities; typical topaz is wine red, yellow, pale gray, reddish-orange, or blue brown. It can also be white, pale green, blue, gold, pink (rare), reddish-yellow or opaque to transparent/translucent. Credit : https://en.wikipedia.org/wiki/Topaz

Kunzite

Kunzite (Spodumene) is a pyroxene mineral consisting of lithium aluminium inosilicate, LiAl(SiO3)2, and is a source of lithium. It occurs as colorless to yellowish, purplish, or lilac kunzite (see below), yellowish-green or emerald-green hiddenite, prismatic crystals, often of great size. Single crystals of 14.3 m (47 ft) in size are reported from the Black Hills…

Tourmaline

Tourmaline  is a crystalline boron silicate mineral compounded with elements such as aluminium, iron, magnesium, sodium, lithium, or potassium. Tourmaline is classified as a semi-precious stone and the gemstone comes in a wide variety of colors. The name comes from the Tamil and Sinhalese word “Turmali” (තුරමලි) or “Thoramalli” (තෝරමල්ලි), which applied to different gemstones…

Peridot

Peridot is one of the few gemstones that occur in only one color, an olive-green. The intensity and tint of the green, however, depends on how the percentage of iron that is contained in the crystal structure, so the color of individual peridot gems can vary from yellow to olive to brownish-green. In rare cases…

Emerald

Emerald is a gemstone and a variety of the mineral beryl (Be3Al2(SiO3)6) colored green by trace amounts of chromium and sometimes vanadium.[2] Beryl has a hardness of 7.5–8 on the Mohs scale.[2] Most emeralds are highly included,[3] so their toughness (resistance to breakage) is classified as generally poor. Emerald is a cyclosilicate. Credit : https://en.wikipedia.org/wiki/Emerald   

Sapphire

Sapphire is a gemstone variety of the mineral corundum, an aluminium oxide (α-Al2O3). It is typically blue in color, but natural “fancy” sapphires also occur in yellow, purple, orange, and green colors; “parti sapphires” show two or more colors. Credit: https://en.wikipedia.org/wiki/Sapphire        

Ruby

A ruby is a pink to blood-red colored gemstone, a variety of the mineral corundum (aluminium oxide). The red color is caused mainly by the presence of the element chromium. Its name comes from ruber, Latin for red. Other varieties of gem-quality corundum are called sapphires. Ruby is considered one of the four precious stones,…