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Bementite - Franklin, NJ




Item History and Pricing
Information:
Country/Region of Manufacture: United StatesFranklin Mineral Museum: Mineral species
Original Description:
One of the rarities and much sort after mineral species from Franklin. Here were have a very rich specimen of bementite. Franklin is the type locality of bementite. It is a manganese silicate hydroxide mineral and was named for Clarence Sweet Bement by George Augustus Koenig in 1887. Bement assembled the finest mineral collection in the USA. He also assembled the finest collection of U.S. coins and was interested in a variety of collectibles. Bement had a keen interest in Fra...nklin, New Jersey minerals from whence his namesake was discovered. The bementite is the massive, pale tan-brown material with a dull to semi-vitreous luster. Embedded along with the bementite are spots of white coarse calcite scattered throughout the specimen. This is an excellent, rich specimen and would be ideal for the species collector.Dimensions are 9.5x11.1x8cm - 3¾x4¼x3in. Please note the centimeter cube and inch bar for scale.From the Franklin Mine, Franklin, NJ.The previous collection this specimen was in is #123, the Princeton University Collection with an attached tag that reads 936. The tags were attached at Princeton University.#123 is the museum's Collection Sale number previously offered in the museum shop.>>> We do COMBINED SHIPPING for multiple items. To request an invoice from us that combines shipping ALWAYS click the Add to cart button in eBay to add items until you are done. DO NOT PROCEED to checkout, rather go click the Request Total from Seller button. <<< === There is an instructional video on how to request combined shipping is here https://www.youtube.com/watch?v=FvDe7Fg7R4Q === All potential buyers need to be aware of the fact being able to view fluorescent minerals requires an ultraviolet light. Most of the minerals from the Franklin and Sterling Hill zinc mining district fluoresce under shortwave ultraviolet light. The shortwave wavelength is 254nm or otherwise known as UV C. Always read the description carefully to determine if the main mineral of interest for a particular specimen will fluoresce. There are several available brands and models of ultraviolet lights on eBay and other online sources. For further information on ultraviolet light and fluorescent minerals, copy and paste and go to >>> geology.com/articles/fluorescent-minerals.>>>> We Buy Collections <<<<DISCLAIMER: Every reasonable effort was made to accurately identify the mineral specie(s) noted in each specimen. The occasional label from previous collection(s) may misidentify some species and the current title and description here reflects the latest mineral specie(s) identification. There may or may not be any fluorescent mineral specie(s) present in this specimen. A fluorescent photograph may not have been included for a number of reasons. Chief among these are; there may not be any fluorescence in this particular specimen. If there are fluorescent specie(s) it is considered minor and not the particular specie(s) of note in this particular specimen. Another reason not including a fluorescent photograph is the  mineral species may be too weak to successfully record even with modern photographic technology and with photo-enhancement. If there was such a fluorescent species present in this specimen, it would be noted in the descriptive text. A modest effort was made to depict a fluorescent specimen accurately as possible, but some overexposure should be expected in some photographs to compensate for a weak response of a fluorescent specimen.--- All photographs appearing on this listing or any other Franklin Mineral Museum listing are the property of the Franklin Mineral Museum. Photographs can be used strictly for personal use only. Otherwise the photographs posted here are protected by U.S. Copyright Laws, and are not to be downloaded or reproduced for public use or distribution in any way without the written permission of the Franklin Mineral Museum. ---



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