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2. Free Fire (video game) - Wikipedia

   en.wikipedia.org/wiki/Free_Fire_(video_game)

   Free Fire is a free-to-play battle royale game developed and published by Garena for Android and iOS. [ 4] It was released on 8 December 2017. It became the most downloaded mobile game globally in 2019 and has over 1 billion downloads on Google Play Store. In the first quarter of 2021 it was the highest grossing mobile game in the US. [ 5]

3. Diamond (gemstone) - Wikipedia

   en.wikipedia.org/wiki/Diamond_(gemstone)

   Diamond[ a] is a gemstone formed by cutting a raw diamond. Diamonds are one of the best-known and most sought-after gems, and they have been used as decorative items since ancient times. The hardness of diamond and its high dispersion of light —giving the diamond its characteristic "fire"—make it useful for industrial applications and ...

4. Hearts on Fire (company) - Wikipedia

   en.wikipedia.org/wiki/Hearts_on_Fire_(company)

   Jewelry. Owner. Chow Tai Fook Jewellery Group Ltd. Number of employees. 197. Website. www .heartsonfire .com. Hearts On Fire is a diamond jewelry brand marketed by the Chow Tai Fook Jewellery Group of Hong Kong. The brand was founded in 1996 in Boston, Massachusetts, United States, and purchased by Chow Tai Fook in 2014.

5. NFPA 704 - Wikipedia

   en.wikipedia.org/wiki/NFPA_704

   NFPA 704 safety squares on containers of ethyl alcohol and acetone. " NFPA 704: Standard System for the Identification of the Hazards of Materials for Emergency Response " is a standard maintained by the U.S. -based National Fire Protection Association. First "tentatively adopted as a guide" in 1960, [ 1] and revised several times since then ...

6. Synthetic diamond - Wikipedia

   en.wikipedia.org/wiki/Synthetic_diamond

   Synthetic diamond. Lab-grown diamonds of various colors grown by the high-pressure-and-temperature technique. Laboratory-grown ( LGD ), also called lab-grown diamond, [ 1] laboratory-created, man-made, artisan-created, artificial, synthetic, or cultured diamond, is diamond that is produced in a controlled technological process (in contrast to ...

7. Material properties of diamond - Wikipedia

   en.wikipedia.org/wiki/Material_properties_of_diamond

   Material properties of diamond. Burns above 700 °C in air. Diamond is the allotrope of carbon in which the carbon atoms are arranged in the specific type of cubic lattice called diamond cubic. It is a crystal that is transparent to opaque and which is generally isotropic (no or very weak birefringence ).