Blue topaz jewelry
Topaz is an aluminium silicate containing fluorine and hydroxyl. Purely, it is colourless (white) ; it is the impurities which cause the variations of colour. “Topaz ranges from colourless to yellow, orange, red-brown, light to dark-blue, pink to red, violet and light-green.” Furthermore, Topaz is distinguished by its hardness and its perfect cleavage. This fine…
Tanzanite jewelry
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…
Turquoise jewelry
Turquoise is a hydrated copper and aluminium phosphate. The colour varies from blue to blue-green. Turquoise is often mottled with cream or brown veins. Furthermore, the name “turquoise” comes from a confusion : when Venitian merchants brought this stone in France, it was called “Turkish stone”, from Turkey whereas it was from Persia. Besides, the…
Amazonite jewelry
The Amazonite (also named Microcline) is a variety of potassium feldspar (like moonstone). The name “Amazonite” comes from the Amazon River in Brazil. The colour varies from green to blue-green. This fine gemstone can be confused with Turquoise and Jade. Amazonite is found mainly in Colorado, Brazil, India, Kenya, Madagascar, Namibie, Russia and Zimbabwe. Jacquie…
