Carven dress
Peridot is a transparent variety of Olivine and belongs to the forsterite-fayalite mineral series. It is an idiochromatic gem (single colour gem) : peridot is only found in green. But there are shades of green depending of the amount of iron it contains : from light yellowish to dark brownish-green. The more there is iron, the…
Tanzanite is a variety of Zoisite (calcium aluminum silicate ) and has a colour varying from blue to violet. This stone is Heat treatments enhance the Tanzanite’s colours. This gemstone is named “Tanzanite” because a deposit was found in 1967 in Tanzania, East African country. Tanzanite is distinguished by a perfect cleavage (it cleaves “without…