Margarosanite, Xonotlite, Axinite, Clinohedrite, Calcite, Willemite - Franklin Mine, New Jersey, USA

$0.00 USD

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SKU: MSJ0324
Weight and Dimensions

11.5 oz, 3" x 3 1/2" x 1 1/2" Diameter

Shipping and Delivery

Free Shipping
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2-5 Business Days

*Note: Please make sure to right-click and print (or save) ID card located in the photo gallery for your records*

margarosanite id label

A rare Franklin assemblage of margarosanite, axinite, orange (under shortwave) clinohedrite, dark blue fluorescing xonotlite, willemite and possibly many other Franklin rare minerals.

margarosanite from franklin mine

Margarosanite is a rare calcium lead silicate mineral that shows a beautiful short wave fluorescent response that ranges from blue/white to pastel shades of purple, pink and lavender. For these reasons it is one of the most coveted (and expensive) fluorescent minerals.

margarosanite from franklin mine new jersey

First discovered in the Parker Shaft of the famous Franklin mine, in Franklin, Sussex County, New Jersey. A lesser variety of Margarosanite is also found at some of the mines in Filipstad, Varmland County, Sweden, such as Langban and Jakobsberg.

Longwave 365nm UV Lights: Blacklight Tubes vs. LEDs

Longwave 365nm UV Lights: Blacklight Tubes vs. LEDs

365nm UV light is often called "blacklight". Before the advent of longwave UV LEDs, blacklight fluorescent tubes, (the kinds used in hippie days to light up psychedelic posters) were the standard longwave UV light for our hobby. They were not very powerful but they did light a large area.

Enter 365nm UV LEDs

 

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fluorescent minerals under 365nm uv flashlight and 395nm unfiltered uv flashlight

What's The Difference Between a 365nm and a 395nm UV Flashlight?

First, an animation showing the difference between the UV flashlight we recommend (365nm filtered UV flashlight) versus unfiltered 395nm UV flashlights we see many folks carrying around at shows. So. much. visible purple light. We selected a bunch of rocks as a demonstration. Took pictures of them under his flashlight without the filter and then with the filter.

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Fluorescent Green Agate from Scott's Gulf, Smryna, Tennessee

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