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Unlike with most permanent markers the ink is an oil-based paint and generally requires shaking before use, similar to an aerosol spray paint can. In addition, the line is very opaque and, unlike spirit-based or other permanent inks, will not fade with exposure to UV light, and overlays all other colors beneath it.
Posca was a popular drink in ancient Rome and Greece. Posca may also refer to: Posca (Rome character), a fictional character in the HBO/BBC television series Rome; POSCA, a marker pen made by uni-ball; Jean-Pierre Posca, a French professional footballer
Posca was an ancient Roman drink made by mixing water and wine vinegar. Bracing but less nutritious and palatable than wine, it was typically a drink for soldiers, the lower classes, and slaves. Bracing but less nutritious and palatable than wine, it was typically a drink for soldiers, the lower classes, and slaves.
Pure (type IIa) diamond can be colored pink, red, or, brown owing to structural anomalies arising through plastic deformation during crystal growth; [20] these diamonds are rare (1.8% of gem diamonds), but constitute a large percentage of Australian diamonds. Type IIb diamonds, which account for ~0.1% of gem diamonds, are usually a steely blue ...
Historic rhinestone copy of the Florentine Diamond, made in 1865 in Paris by the L. Saemann company [1] Rhinestones on a tiara Rowenta enamel rhinestone compact. A rhinestone, paste or diamante is a diamond simulant originally made from rock crystal but since the 19th century from crystal glass or polymers such as acrylic.
The Federal Trade Commission (FTC) also ruled that lab-grown diamonds are real in 2018. “Laboratory-grown diamonds and natural diamonds cannot be told apart using the unaided eye,” GIA argues ...
UV marker with UV led lamp. An ultraviolet (UV) marker is a pen whose marks are fluorescent but transparent; the marks can be seen only under an ultraviolet light.They are commonly used in security situations to identify belongings or to prevent the reproduction of unauthorized banknotes.
Gemstone irradiation is a process in which a gemstone is exposed to artificial radiation in order to enhance its optical properties.High levels of ionizing radiation can change the atomic structure of the gemstone's crystal lattice, which in turn alters the optical properties within it. [1]