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  2. Luminous gemstones - Wikipedia

    en.wikipedia.org/wiki/Luminous_gemstones

    The first theme is using legendary luminous gems to illuminate buildings, for navigation lights on ships, or sometimes as guiding lights for lost persons (Ball 1938: 498–500). In India, the earliest country in which fine gemstones were known, belief in luminous gems dates back some twenty-five centuries.

  3. Category:Luminescent minerals - Wikipedia

    en.wikipedia.org/wiki/Category:Luminescent_minerals

    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.

  4. List of gemstones by species - Wikipedia

    en.wikipedia.org/wiki/List_of_gemstones_by_species

    This is a list of gemstones, organized by species and types. Minerals. There are over 300 types of minerals that have been used as gemstones. Such as: A–B

  5. Category:Gemstones - Wikipedia

    en.wikipedia.org/wiki/Category:Gemstones

    Main page; Contents; Current events; Random article; About Wikipedia; Contact us

  6. Not to Brag But Nothing Will Top These Cool Lunar New Year ...

    www.aol.com/29-festive-lunar-gifts-bring...

    Not to toot my own horn, but, I found some gems after hours of research! ... Luminous 4477918. Zenni dropped a Year of the Snake collection with funky, on-theme frames, and all of a sudden I'm ...

  7. Cintamani - Wikipedia

    en.wikipedia.org/wiki/Cintamani

    In Tibetan Buddhist tradition the Chintamani is sometimes depicted as a luminous pearl and is in the possession of several of different forms of the Buddha. [ 3 ] In Japan, where the Hindu goddess Lakshmi is known as Kisshōten in Shinto , she is commonly depicted with a Cintāmaṇi in her hand.

  8. List of light sources - Wikipedia

    en.wikipedia.org/wiki/List_of_light_sources

    This is a list of sources of light, the visible part of the electromagnetic spectrum.Light sources produce photons from another energy source, such as heat, chemical reactions, or conversion of mass or a different frequency of electromagnetic energy, and include light bulbs and stars like the Sun. Reflectors (such as the moon, cat's eyes, and mirrors) do not actually produce the light that ...

  9. Lustre (mineralogy) - Wikipedia

    en.wikipedia.org/wiki/Lustre_(mineralogy)

    A list of these terms is given below. Lustre varies over a wide continuum, and so there are no rigid boundaries between the different types of lustre. (For this reason, different sources can often describe the same mineral differently. This ambiguity is further complicated by lustre's ability to vary widely within a particular mineral species).