Willemite And Calcite Crystals - Franklin, NJ
Item History & Price
| Reference Number: Avaluer:16074775 | Country/Region of Manufacture: United States |
| Franklin Mineral Museum: Mineral crystals species | Featured Refinements: Calcite |
A beauty of a large thumbnail. Here we have a real sleeper that reveals itself as a small beauty once the observer sees what is happening. There are two prominent mineral species on display in this specimen. First is the single, elongated, translucent to transparent, pale green, vitreous crystal of willemite located at one edge of the specimen. Secondly, immediately adjoining the willemite crystal is a radiating group of steeply prismatic scalenohedrons of white, semi-vi...treous and translucent crystals of calcite. The matrix is mostly massive calcite with what appears to be a swirling veinlet texture with a iridescent sulfide for part of the veinlet. This apparently was a remnant of a larger pocket. The willemite crystals fluoresce a bright green under shortwave (254nm) ultraviolet light and the calcite crystals fluoresce a bright red. There is potential of improvement by soaking the specimen in an ultrasonic bath. This specimen definitely proves the maxim of beauty is in the eye of the beholder.Dimensions are 5.2x2.6x2.8cm - 2x1x1in. Please note the centimeter cube and inch bar for scale.From the Franklin Mine, Franklin, NJ.The previous collection this specimen was in is #114, Earl R. Verbeek Collection.#114 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. 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. ---
