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Happy the man who shall catch the stone ere it falls." (von Haxthausen 1854: 355). Henry Timberlake, the British emissary to the Overhill Cherokee during the 1761–1762 Timberlake Expedition, records a story about medicine men ("conjurers") using gemstones, which is a variant of the Horned Serpent legend in Iroquois mythology. One luminous gem ...
Photoluminescent materials for temperature detection [ edit ] In phosphor thermometry , the temperature dependence of the photoluminescence process is exploited to measure temperature.
Most photoluminescent events, in which a chemical substrate absorbs and then re-emits a photon of light, are fast, in the order of 10 nanoseconds. Light is absorbed and emitted at these fast time scales in cases where the energy of the photons involved matches the available energy states and allowed transitions of the substrate.
Gemstone meanings are inspired by everything from royal traditions and chakras to ancient cultures and spiritual thoughts. “The myriad of colors of gemstones alone transmit energy via the ...
Luminescence occurs in some minerals when they are exposed to low-powered sources of ultraviolet or infrared electromagnetic radiation (for example, portable UV lamps), at atmospheric pressure and atmospheric temperatures.
An asterism (from Ancient Greek ἀστήρ (astḗr) 'star' and -ism) is a star-shaped concentration of light reflected or refracted from a gemstone. It can appear when a suitable stone is cut en cabochon (i.e. shaped and polished, not faceted). A gemstone that exhibits this effect is called a star stone or asteria.
Luminol and haemoglobin, an example of chemiluminescence UV-photoluminescence in microbiological diagnostics. Luminescence is a spontaneous emission of radiation from an electronically or vibrationally excited species not in thermal equilibrium with its environment.
People Born in March Actually Have 2 Birthstones—Find Out What They Are and the Meaning Behind Each Stone. Laura Beck. March 1, 2024 at 6:05 AM. Aquamarine stones for March birthstone.