Fluorescent Mineral

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Hyalite Opal with daylight, LED and UV light fluorescence, from Zacatecas, Mexico. Fluorescence is c

RockglowWe have a complex rock here from the Franklin mine in New Jersey (itself named for Benjamin

Rare Willemite, Franklinite and Calcite Fluorescent Intarsia Box - Franklin, New Jersey

arockmaniac:Chalcedony from Hidalgo County, New Mexico under short wave ultraviolet and white light.

Uranocircite - Brazil

Afghanite: a beautiful rarityNamed after the country where it was first discovered which remains the

Scheelite, Calcite, Pyrite (SW, WL)Renison Bell Tin Mine, Renison Bell, Tasmania

Calcite from the Buckwheat Dump at the Franklin Mineral Museum, Franklin, NJ.  Pictured under long w

HydroxylherderiteThe apatite group of minerals (see bit.ly/2akYWkg) encompasses quite a varie

Glowing CalciteThis crystal of calcite from the Apache Mine in New Mexico is colorless when it is ex

Oldest bit of Earth yet found!Zircons are tough little devils! They’re hard (7.5 on the Moh&rs

Fluorescent vermillion Corundum var ruby (Al2O3) in schist matrix under long frequency UV light. Fro

Calcite from the Buckwheat Dump at the Franklin Mineral Museum, Franklin, NJ.  Pictured under l

Black/gray/brown scheelite crystal from the Tae Hwa Mine, North Chungcheong Province, South Korea.&n

Fluorite on hyalite reportedly from the La Lupita Mine in Durango, Chihuahua, Mexico.  Pictured

Fluorite from the Ojuela Mine, Mapimi, Durango, Mexico.  Pictured under Long wave ultraviolet a

End members of the scheelite-powellite series.  Scheelite from Mt. Xuebaoding, China, and powel

Terlingua Calcite from the Little 38 Mine, Terlingua, Texas.  Pictured under long wave, mid-wav

Benitoite from the Benitoite Gem Mine in San Benito County, California, the type locality.  Ben

Massive fluorite from near Rodeo, Durango, Mexico under white light and long wave ultraviolet (black

Mystery rock from a mystery location picked up at a garage sale.  Shown under long wave ultravi

Laguna agate from Chihuahua, Mexico, shown under short wave ultraviolet and white light.

Barite crystals from the Glow Stick Pocket of the Linwood Mine, Buffalo, Scott County, Iowa, under l

I hope everyone had a safe Fourth of July!

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