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  2. Franklinite - Wikipedia

    en.wikipedia.org/wiki/Franklinite

    At its type locality, franklinite can be found with a wide array of minerals, many of which are fluorescent. More commonly, it occurs with willemite, calcite, and zincite. In these rocks, it forms as disseminated small black crystals with their octahedral faces visible at times. It may rarely be found as a single large euhedral crystal.

  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. This property of these minerals can be used during the process of mineral identification at rock outcrops in the field.

  4. Willemite - Wikipedia

    en.wikipedia.org/wiki/Willemite

    Willemite is a zinc silicate mineral (Zn 2 Si O 4) and a minor ore of zinc.It is highly fluorescent (green) under shortwave ultraviolet light. It occurs in a variety of colors in daylight, in fibrous masses and apple-green gemmy masses.

  5. List of minerals - Wikipedia

    en.wikipedia.org/wiki/List_of_minerals

    This is a list of minerals which have Wikipedia articles. Minerals are distinguished by various chemical and physical properties. Differences in chemical composition and crystal structure distinguish the various species .

  6. Ulexite - Wikipedia

    en.wikipedia.org/wiki/Ulexite

    Ulexite (/ juː ˈ l ɛ k s aɪ t /) sometimes called TV rock or TV stone due to its unusual optical properties, is a hydrous borate hydroxide of sodium and calcium with the chemical formula NaCaB 5 O 6 (OH) 6 ·5H 2 O.

  7. Fluorescence - Wikipedia

    en.wikipedia.org/wiki/Fluorescence

    Fluorescent minerals emit visible light when exposed to ultraviolet. Fluorescent marine organisms Fluorescent clothes used in black light theater production, Prague Fluorescence is one of two kinds of photoluminescence , the emission of light by a substance that has absorbed light or other electromagnetic radiation .

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