Splendent Franklinite Crystals - Sterling Hill, Ogdensburg, NJ
Item History & Price
| Reference Number: Avaluer:44295643 | Franklin Mineral Museum: Mineral crystals species |
| Country/Region of Manufacture: United States |
A fine example of splendent franklinite crystals from Sterling Hill. There are numerous, scattered, small splendent franklinite crystals located on the front face of the matrix. The franklinite crystals exhibit highly modified prismatic faces. Franklinite was named in 1819 by Pierre Berthier for the type locality of Franklin Furnace (now Franklin Borough), New Jersey. Silliman (1920) translated Berthier's article: "As the chemical nomenclature cannot in every instance furnish a name, I... propose to give it that of The Franklinite, in order to remind us that it was found, for the first time, in a place to which the Americans have given the name of a great man, whose name is equally venerated in Europe as in the new world by all the friends of science an humanity." and this would be Benjamin Franklin. Franklinite is a member of the spinel group, the only one of three spinel family members to have zinc, gahnite, and zincochromite being the others. This species has been reported and observed in many world localities, though nowhere else in minable quantities.The matrix is typical zinc ore of black, metallic franklinite grains, with dull, brown willemite grains and coarse white calcite making up the remainder. The specimen sits nicely for an optimal display. Magnification is required to appreciate this little treasure box of crystals best. These examples of franklinite were somewhat common back in the 1970s. They are now scarce today, and it is hard to find good specimens nowadays. Ideal for the species collector and the beginner of Franklin and Sterling Hill mineral species.Dimensions are 6.4x6.2x7.5cm - 2½x2½x3in. Please note the centimeter cube and inch bar for scale.Weight in grams and ounces: 573.5g - 20.23oz.From the Sterling mine, Ogdensburg, NJ.
The previous collection this specimen was in is #162, John Buczinsky.
#162 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 on eBay to add items until you are done. DO NOT PROCEED to checkout, instead 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 that being able to view fluorescent minerals requires an ultraviolet lamp. 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. ALL fluorescent minerals depicted in our storefront are illuminated by two (2) 9 watt Triple short/mid/longwave AC Model 9SM-110 Way Too Cool LLC ultraviolet lamps, and the shortwave tubes and filters were replaced in late 2018. 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 the following 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 reflect 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 several 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 specific specie(s) of note in this specific specimen. Another reason not including a fluorescent photograph is that some mineral species may be too weak to record even with modern photographic technology and photo-enhancement. If such a fluorescent species were 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. In some cases, overexposure should be expected in select photographs to compensate for a weak response of a fluorescent specimen. All buyers should exercise safe viewing practices regarding the use of ultraviolet light. Visual dark adaption is highly recommended in the optimal viewing of fluorescent minerals. Buyers should also be aware of what type of lighting to view the specimens under. This can result in perceived differences of color and contrast due to color and contrast shifting under various kinds of lights available.All photographs were taken with a Nikon D5300 digital camera with a Nikon DX AF-S 18-55mm lens attached with a UV filter. Lighting was done with a pair of OSRAM 8.5 watt LED A19 5000K 800 lumens bulbs in brushed aluminum reflectors. The photographs were processed on a color-calibrated flat panel monitor. Do note the Imperial measurement conversion is the nearest equivalent to the listed metric measurement.
--- 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. They are not to be downloaded or reproduced for public use or distribution in any way without the written permission of the Franklin Mineral Museum. ---
The previous collection this specimen was in is #162, John Buczinsky.
#162 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 on eBay to add items until you are done. DO NOT PROCEED to checkout, instead 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 that being able to view fluorescent minerals requires an ultraviolet lamp. 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. ALL fluorescent minerals depicted in our storefront are illuminated by two (2) 9 watt Triple short/mid/longwave AC Model 9SM-110 Way Too Cool LLC ultraviolet lamps, and the shortwave tubes and filters were replaced in late 2018. 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 the following 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 reflect 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 several 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 specific specie(s) of note in this specific specimen. Another reason not including a fluorescent photograph is that some mineral species may be too weak to record even with modern photographic technology and photo-enhancement. If such a fluorescent species were 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. In some cases, overexposure should be expected in select photographs to compensate for a weak response of a fluorescent specimen. All buyers should exercise safe viewing practices regarding the use of ultraviolet light. Visual dark adaption is highly recommended in the optimal viewing of fluorescent minerals. Buyers should also be aware of what type of lighting to view the specimens under. This can result in perceived differences of color and contrast due to color and contrast shifting under various kinds of lights available.All photographs were taken with a Nikon D5300 digital camera with a Nikon DX AF-S 18-55mm lens attached with a UV filter. Lighting was done with a pair of OSRAM 8.5 watt LED A19 5000K 800 lumens bulbs in brushed aluminum reflectors. The photographs were processed on a color-calibrated flat panel monitor. Do note the Imperial measurement conversion is the nearest equivalent to the listed metric measurement.
--- 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. They are not to be downloaded or reproduced for public use or distribution in any way without the written permission of the Franklin Mineral Museum. ---
