All our Milliondreams products they are entirely assembled by hand in Italy, in Caorle. The stones and metal parts (nickel free stainless steel) make their imperfections a specific and natural feature.
Cotton thread composition: TIGER EYE + VILLAGE STONE + BLUE OPAL + NICKEL FREE STEEL INSERTS.
Stones diameter: mm. 8
Circumference: cm. 75
Tiger's eye is a variety of quartz containing inclusions of crocidolite , a mineral belonging to the asbestos group. The presence of these isooriented fibers, yellow in color tending to gold, gives the mass a particular effect called chalking . It is mainly used as a gem for jewelry making usually cabochon cut. The mineral comes mainly from South Africa and is appreciated for its particularity.
There Paesina stone consists mainly of compact limestone and clay , or marly limestone, and is almost exclusively typical of Tuscany . Geologically it originated about 50 million years ago ( Eocene - Paleocene ).
The name derives from the fact that this stone hides within it drawings that look like the work of a painter, but are absolutely natural, sometimes surprisingly simulating a landscape. The main mining area is since 1500 in the surroundings of the city of Florence in Tuscany , where particular geological conditions have occurred.
The peculiarity of the stone lies in the designs created by mineralized solutions in the presence of Iron And Manganese , which seem to reproduce ruined cities, stormy seas, inlets, rocks, volcanoes, mountains.
The Paesina Stone strikes for the chromatic contrast of its components, light gray for the limestone , reddish-brown for the iron oxides , black for manganese and blue for the clay .
The opal it's a mineral colloidal amorphous , consisting of silica hydrates : ( SiO 2 n H 2 O), semi-amorphous or microcrystalline , i.e. free of reticular structure , in fact it does not appear in crystals, but in veins, nodules and crusts of various colors, often with iridescence.The color varies from transparent to milky white, with an infinity of different intermediates (green, red, yellow, brown , blue, black). The water content can reach up to 20%. The formation of the opal takes place through a slow geological deposit of a gel colloidal from silica at low temperature.
The word "opal" has root common in Sanskrit ùpala , in Greek ὀπάλλιος opallios is in the Latin opălus (meaning "precious stone").
97% of the world's opal production is in Australia [4] , a country that made it the national stone, especially in the area of Lightning Ridge , where black opal is mined. Important deposits are also located in Mexico and in Ethiopia .
