21.15 order Cts Weight Of 25x15.5 Mm Size | Natural Tanzanite Carved Stone Pendant Gemstone | Carving Cabochons|AAA Top Blue Color | SKU#NYTCA11S
Natural Tanzanite Carved Stone Gemstone
Weight : 2115 Carat
Size : 25x155 MM
Sku.
Natural Tanzanite Carved Stone Gemstone
Weight : 21.15 Carat
Size : 25x15.5 MM
Sku : NYTCA11S
Shape : Oval
Colour :Blue
Qualities:
1)Most Beautiful
2)Unique
3)Reasonable
4)Lucky Stone
5)Healing Properties
6)Designers Favorite
7)December Birthstone
8)All Time Favorite
Tanzanite is a violet-blue colored gemstone of the Zoisite mineral family, found only in Tanzania. It exhibits a unique phenomenon called Pleochroism in which Tanzanite displays different color (blue, violet and purple) when viewed from different angles.
Tanzanite was formed around 585 million years ago during the mid-Ediacaran Period by massive plate tectonic activity and intense heat in the area that would later become Mount Kilimanjaro. The mineral is located in a relatively complex geological environment. Deposits are typically found in the "hinge" of isoclinal folds.
Tanzanite forms as a brownish crystal and is trichroic, which means it shows three colors – brown, blue and violet – concurrently. Heating, either underground naturally by metamorphic processes, or artificially, removes the brown or burgundy color component to produce a stronger violet-blue color and makes the stone "dichroic", which means it only order reflects blue and violet.[27] Rarely, gem-quality tanzanite will heat to a green primary hue, almost always accompanied by a blue or violet secondary hue. These green tanzanite have some meaningful value in the collector market, but are seldom of interest to commercial buyers.