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2. Moissanite - Wikipedia

   en.wikipedia.org/wiki/Moissanite

   Moissanite (/ ˈ m ɔɪ s ə ˌ n aɪ t /) [5] is naturally occurring silicon carbide and its various crystalline polymorphs. It has the chemical formula SiC and is a rare mineral , discovered by the French chemist Henri Moissan in 1893.

3. Business card - Wikipedia

   en.wikipedia.org/wiki/Business_card

   Business cards are cards bearing business information about a company or individual. [ 1 ] [ 2 ] They are shared during formal introductions as a convenience and a memory aid. A business card typically includes the giver's name, company or business affiliation (usually with a logo ) and contact information such as street addresses , telephone ...

4. Monazite - Wikipedia

   en.wikipedia.org/wiki/Monazite

   Very low concentrations of the heaviest lanthanides in monazite justified the term "rare" earth for these elements, with prices to match. Thorium content of monazite is variable and sometimes can be up to 20–30%. Monazite from certain carbonatites or from Bolivian tin ore veins is essentially thorium-free. However, commercial monazite sands ...

5. File:COVID-19 Vaccination Record Card CDC (8-17-2020).pdf

   en.wikipedia.org/wiki/File:COVID-19_Vaccination...

   COVID-19 Vaccination Record Card: Image title: COVID-19 Vaccination Record Card: Author: CDC/NCIRD: Software used: Adobe InDesign CC 13.0 (Windows) Conversion program: Adobe PDF Library 15.0: Encrypted: no: Page size: 348 x 294 pts: Version of PDF format: 1.4

6. Silicon carbide - Wikipedia

   en.wikipedia.org/wiki/Silicon_carbide

   As a gemstone used in jewelry, silicon carbide is called "synthetic moissanite" or just "moissanite" after the mineral name. Moissanite is similar to diamond in several important respects: it is transparent and hard (9–9.5 on the Mohs scale, compared to 10 for diamond), with a refractive index between 2.65 and 2.69 (compared to 2.42 for diamond).

7. Diamond simulant - Wikipedia

   en.wikipedia.org/wiki/Diamond_simulant

   In order to be considered for use as a diamond simulant, a material must possess certain diamond-like properties. The most advanced artificial simulants have properties which closely approach diamond, but all simulants have one or more features that clearly and (for those familiar with diamond) easily differentiate them from diamond.