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Collection of various fluorescent minerals under UV-A, UV-B and UV-C light. Cool looking picture, but also encyclopedic. I had no idea about the range of fluoresing rocks. It appears in Fluorescence and Ultraviolet. It was created by User:Hgrobe. Nominate and support. - Ravedave (help name my baby) 04:58, 3 October 2006 (UTC) support.
This page was last edited on 12 September 2020, at 20:12 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.
Optical properties of common minerals Name Crystal system Indicatrix Optical sign Birefringence Color in plain polars Anorthite: Triclinic: Biaxial (-) 0.013
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 .
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.
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. Troostite is a variant in which part of the zinc is partly replaced by manganese, it occurs in solid brown ...
Fluorite (also called fluorspar) is the mineral form of calcium fluoride, CaF 2. It belongs to the halide minerals. It crystallizes in isometric cubic habit, although octahedral and more complex isometric forms are not uncommon. The Mohs scale of mineral hardness, based on scratch hardness comparison, defines value 4 as fluorite. [6]
De Ment, Jack (1949), Handbook of Fluorescent Gems and Minerals – An Exposition and Catalog of the Fluorescent and Phosphorescent Gems and Minerals, Including the Use of Ultraviolet Light in the Earth Sciences, Mineralogist Publishing Company. DeWoskin, Kenneth J. and James Irving Crump, trs.