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Blue Corundum (Sapphire) from Madagascar

Sold by Nebuloso
+ $7.50 shipping
+ $7.50 shipping


Item details

Raw, Natural Blue Corundum (Sapphire) with Biotite from Madagascar

6.5 carats
11.52mm x 6.89mm x 6.35mm


This is a strikingly beautiful specimen, featuring very pronounced record-keeper triangles on both faces! This specimen appears to be bi-colored, with deeper (and gemmier) blue hues at the center, while the surface is a lighter blue with faint golden yellow tones. There's a graphite crystal on the back of the crystal, a surrounding it is some red oxidized iron. I think its a really cool piece for a collector, but it may also suitable for wirewrapping!

According to Wikipedia, "Sapphire is a gemstone variety of the mineral Corundum, an Aluminium Oxide (α-Al2O3). It is typically blue in color, but natural "Fancy" Sapphires also occur in Yellow, Purple, Orange, and Green colors; "Parti Sapphires" show two or more colors. The only color which Sapphire cannot be is red - as red colored Corundum is called Ruby, another Corundum variety. This variety in color is due to trace amounts of elements such as Iron, Titanium, Chromium, Copper, or Magnesium.

Commonly, Natural Sapphires are cut and polished into gemstones and worn in jewelry. They also may be created synthetically in laboratories for industrial or decorative purposes in large crystal boules. Because of the remarkable hardness of Sapphires – 9 on the Mohs scale (the third hardest mineral, after Diamond at 10 and Moissanite at 9.5) – Sapphires are also used in some non-ornamental applications, such infrared optical components; high-durability windows; wristwatch crystals and movement bearings; and very thin electronic wafers, which are used as the insulating substrates of very special-purpose solid-state electronics (especially integrated circuits and GaN-based LEDs).

Sapphire is the birthstone for September and the gem of the 45th anniversary. A Sapphire Jubilee occurs after 65 years."

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Preparation takes 3-5 business days
Arrives from the United States
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Shipping will be US Postal Service (USPS). After your payment is received, I will ship your package and provide you with a delivery confirmation number. All packages will be shipped Priority Mail with insurance. Packages will arrive within 1-3 business days.


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