Quartz is one of the most common minerals on earth. Rose quartz is a pink colour variety of gemstone quartz with chemical formula silicon dioxide SiO2. The colour is usually considered due to trace amounts of titanium, iron, or manganese. Well-shaped crystals are highly prized. It is found colours in very light pink to medium-dark […]
Malachite is a copper carbonate hydroxide mineral, with the formula Cu₂CO₃ (OH)₂. A leaf green copper carbonate malachite was used as a cosmetics and pigments by the Egyptians as far back as 3000BCE. It was used in amulets for children by the ancient Greeks and later in Italy as a talisman to ward off the […]
The scapolites are a group of rock-forming silicate minerals composed of aluminium, calcium, and sodium silicate with chlorine, carbonate and sulfate. Named in 1800 by José Bonifácio de Andrada e Silva from the Greek ζκαποζ meaning “a shaft” in allusion to the long prismatic habit of the crystals. Scapolites can be seen in a wide […]
Prasiolite “also known as green quartz or vermarine” is a green variety of quartz, a silicate mineral chemically silicon dioxide. The word prasiolite literally means “scallion green-coloured stone” and is derived from Greek πράσον prason meaning “leek” and λίθος lithos meaning “stone”. Prasiolite can be found in Brazil, Poland, Sri Lanka, Canada, UK. It is […]
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. […]
