Any blue tourmaline that is diamagnetic can be identified as paraiba tourmaline colored by copper in contrast to magnetic blue tourmaline colored by iron. Some pink and yellow tourmalines might owe their hues to color centers caused by radiation which can be natural or laboratory induced. The semi precious stone tourmaline grows in a number of colors ranging from black to blue to pink. See the gem to the right for example. Make offer 1 33 carat 8x6 oval blue indicolite brazilian tourmaline gem gemstone b13a108.
This is the most common tourmaline species to be found in nature making up to 90 of all tourmalines. It s generally agreed that traces of iron and possibly titanium induce green and blue colors. Although the differences in colors can be explained by the stone s mineral compositions some believe that tourmaline meaning and uses of the different colors can vary from hue to hue. 1 33 carat 8x6 oval blue indicolite brazilian tourmaline gem gemstone b13a108. During this month the days and nights are equal length and the earth and.
From shop hiddengemsuk. Generally blue brings more money which explains why some in the trade are eager to call blue green tourmalines indicolites even if the green predominates. Gia certified no heat natural greenish blue tourmaline indicolite cushion 3 71ct. Tourmaline indicolite and paraíba a modern option for the october birthstone tourmalines have recently increased in popularity and price. Natural blue tourmaline gemstones from your on line link direct to the blue tourmaline mines and gem faceting shops for faceted natural color blue tourmaline gemstones and cabochon blue tourmaline gems mined in brazil madagascar and africa.
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If the green dominates i d call it a green tourmaline or verdelite. 8x3 3x2mm blue tourmaline gemstone grade aa pebble chip loose beads 15 5 inch 80004133 b111 daybeads. I would call a blue green stone with dominant blue a blue tourmaline. Tourmaline is the zodiac stone for those born under the sign of libra between september 23 and october 22 the middle of the harvest. List of major tourmaline species.Tourmalines occur in every color but blue specimens called indicolites are rare and highly prized due to their rarity finished indicolite gems will contain inclusions and fractures more frequently than other color varieties of tourmaline. Blue tourmaline zodiac stone of libra. Schorl tourmalines are typically black sometimes with a blue or brown tint and are not the stones usually used in the gem and jewelry industry. Manganese produces reds and pinks and possibly yellows. For example blue indicolite tourmaline is the only blue gemstone of any kind that will show a drag response when a neodymium magnet is applied.
For example blue indicolite tourmaline is the only blue gemstone of any kind that will show a drag response when a neodymium magnet is applied. Tourmalines occur in every color but blue specimens called indicolites are rare and highly prized due to their rarity finished indicolite gems will contain inclusions and fractures more frequently than other color varieties of tourmaline. If the green dominates i d call it a green tourmaline or verdelite. From shop hiddengemsuk. This is the most common tourmaline species to be found in nature making up to 90 of all tourmalines.
Manganese produces reds and pinks and possibly yellows. Any blue tourmaline that is diamagnetic can be identified as paraiba tourmaline colored by copper in contrast to magnetic blue tourmaline colored by iron.
