Bi-Color Watermelon Tourmaline Slice Small 1.5Ct 7mm Natural Sparkling Green & Pink Cabochon Gemstone Crystal Mineral Décor Cab Specimen

Bi-Color Watermelon Tourmaline Slice Small 1.5Ct 7mm Natural Sparkling Green & Pink Cabochon Gemstone Crystal Mineral Décor Cab Specimen
Categories: Art Supplies, Color
Brand: Etsy - Etsy (US)
Color: Green
22.95 USD
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I took the pictures of this stone in a professional photo studio to show the natural beauty of this piece to the fullest extent! I will send you exactly the stone you can see in the picture as it is absolutely unique in its kind! Specimen Size: 7mm x 6mm x 3mm or 5/16 x 1/4 x 1/8 Inches; Weight 1.5ct or 0.3g or 0.01oz; Tourmaline were found in Afghanistan. Some tourmalines provide a visual record of their crystal growth by displaying two or more areas of different color. These are known as bi-color or tri-color tourmalines. Most often they feature a combinations of pink & green or some variation. The color range is quite wide, ranging from orange to purple to brownish-pink & blue-green to apple-green. The most famous multi-color tourmalines are referred to in the trade as watermelon tourmaline, since they combine pink or red with green, sometimes with a thin white area separating the colors. Sometimes these watermelon tourmalines are cut as slices, with a pink core & a green rim. Clean material is usually faceted in long rectangular shapes, with an emerald or scissor cut. Note that the term watermelon tourmaline is mainly a trade name, & reports from gemological laboratories will typically identify these stones as “bi-color tourmaline.” Tourmaline is a crystalline boron silicate mineral compounded with elements such as aluminium, iron, magnesium, sodium, lithium, or potassium. Tourmaline is classified as a semi-precious stone & the gemstone comes in a wide variety of colors. in its natural state, all the Tourmalines are characterized by parallel ridges (striations) which run the length of the crystal, as are the Black Tourmalines which are the most common in the Tourmaline group. Tourmaline forms in igneous & metamorphic rocks & veins. It frequently occurs with Lepidolite, Microcline, & Spodumene in granite pegmatites & others. Chemical Composition: (Na, Li,Ca) (Fe2, Mg, Mn, Al)3 Al6 I(OH)4 I (BO3)3ISi6O18I; Color: Most commonly black, but can range from colorless, brown, violet, yellow, orange, blue, red, green, pink, or bi-colored, or even tri-colored; Mohs scale hardness: 7-7.5; Bi-Color Watermelon Tourmaline Slice Small 1.5Ct 7mm Natural Sparkling Green & Pink Cabochon Gemstone Crystal Mineral Décor Cab Specimen