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2. Cubic zirconia - Wikipedia

   en.wikipedia.org/wiki/Cubic_zirconia

   Cubic zirconia (abbreviated CZ) is the cubic crystalline form of zirconium dioxide (ZrO 2). The synthesized material is hard and usually colorless, but may be made in a variety of different colors. The synthesized material is hard and usually colorless, but may be made in a variety of different colors.

3. Zirconium dioxide - Wikipedia

   en.wikipedia.org/wiki/Zirconium_dioxide

   Like diamond, cubic zirconia has a cubic crystal structure and a high index of refraction. Visually discerning a good quality cubic zirconia gem from a diamond is difficult, and most jewellers will have a thermal conductivity tester to identify cubic zirconia by its low thermal conductivity (diamond is a very

4. Zircon - Wikipedia

   en.wikipedia.org/wiki/Zircon

   It occurs as a common accessory mineral in igneous rocks (as primary crystallization products), in metamorphic rocks and as detrital grains in sedimentary rocks. [2] Large zircon crystals are rare. Their average size in granite rocks is about 0.1–0.3 mm (0.0039–0.0118 in), but they can also grow to sizes of several cm, especially in mafic ...

5. List of gemstones by species - Wikipedia

   en.wikipedia.org/wiki/List_of_gemstones_by_species

   Cubic zirconia; Lab diamond; Lab emerald; ... Some minerals made into gemstones may display a chatoyancy or cat's eye effect, ... Rock crystal (var.) Shocked quartz ...

6. Gemology - Wikipedia

   en.wikipedia.org/wiki/Gemology

   Likewise, natural stones, particularly beryl minerals, show small flaws – short planar cracks where the direction of the crystalline orientation in the gem abruptly changes. The natural formation of gemstones tends to layer the minerals in regular crystalline sheets, whereas many synthetically produced gems have an amorphous structure, like ...

7. 11 Christmas Gifts To Buy at Nordstrom Rack If You Want To ...

   www.aol.com/finance/11-christmas-gifts-buy...

   Each heart charm is encrusted in pavé cubic zirconia stones to add a touch of sparkle to any outfit. Available in gold and rhodium shades, these earrings are now 52% off their comparable value ...

8. 7 signs you might have ADHD and what steps to take - AOL

   www.aol.com/news/7-signs-might-adhd-steps...

   With 15.5 million U.S. adults currently diagnosed with ADHD, there is a growing focus on warning signs of the disorder. Mental health experts share the most common signs and symptoms.

9. Flour Bugs Are a Real Thing—Here’s an Easy Way to ... - AOL

   www.aol.com/flour-bugs-real-thing-easy-150000385...

   To keep your flour safe from any weevils already present in your pantry, Quoc Le suggests using airtight containers made of glass, metal, or a strong plastic. "There should be no openings or ...