Mon, 20 Mar 2017 22:15:09 +0000
The 14.02-carat Spinel from Sri Lanka is exceptional for its intense violet-blue color. Spinel is a magnesium aluminum oxide and forms when impure limestone is altered by heat and pressure. They are commonly found in occurrence with corundum (ruby and sapphire) and have historically been confused with each other due to their many similarities. Both minerals are hard, yield durable gems, and form in a range of colors.The major sources of spinel gemstones are Burma, Sri Lanka, and Thailand.
Gem quality sphalerite is a rare collector stone. The mineral is usually nearly black in color but is occaisionally found in transparent pieces of an orange or yellowish brown hue. Clean pieces are extremely rare. More @ www.multicolour.com and #gemstones
Spinel from silverpunks, Silver Jewelry, Body Jewelry, and Gemstones
13 2 Ct 16 4x12 5mm VVS Natural Bi Color Oval Ametrine | eBay
Interestingly enough, distinguishing spinel from ruby actually gave birth to the science of gemology. But spinel is not only the greatest ruby imposter, it also comes in a range of beautiful pastel shades, including pink, purple, orange and blue. And here we have for you a seductive lavender Spinel cushion weighing 2.41 cts from Tunduru, Tanzania. With a hardness of 8 and no cleavage planes, spinel is a tough and durable gemstone suitable for any kind of jewelry.
Genuine Purple Sapphire Loose Gemstone, Purple Violet Color, Oval Cut, 9.4 x 7.2 mm, 3.27 Carats at BitCoin Gems
Pure spinel is colorless, but impurities give rise to a range of colors, most typically pink or red, but also purple, green and blue. Spinel is a magnesium aluminum oxide and forms when impure limestone is altered by heat and pressure. They are commonly found in occurrence with corundum (ruby and sapphire) and have historically been confused with each other due to their many similarities.
Mountain Alexandrite is gorgeous. I don't even care that I could only afford lab grown.
Indian Alexandrite under sunlight. , Superior brilliance, and excellent clarity and although the color change is not strong, alexandrites from Andrapradesh are well known for their beautiful daylight color. More @ www.multicolour.com and #gemstones #alexandrite
Benitoite - In 2007, the owner of the Benitoite Gem Mine discovered a near flawless crystal weighing just over 34 carats. The crystal was faceted into 4 gemstones, the largest of which is this beauty. This is the 4th largest faceted VVS or better Benitoite for the species. Weight: 8.06 ct., Origin: San Benito County, California USA, Size: 13.82 mm x 10.44 mm x 7.35 mm, Color: Dark Blue, Violet, Shape: Oval, Modifed Brilliant Cut, Treatment: None, 100% natural
Very rare eye clean Taaffeite weighing 2.32cts from Sri Lanka. Taaffeite is one of the rarest and most desirable of collector's gemstones. Only a very few stones have been found and most of them originally misidentified as spinel. Multicolour.com, discovered some taafeites in it's mine run material from Tunduru, Tanzania. More @ www.multicolour.com and #gemstones
Dazzling Cambodian Precious Blue Zircon Faceted Gemstone, Pear Cut, 6.2 carats on Etsy, $2,302.00