Midwave Fluorescent Minerals

Minerals that are fluorescent under MW UV (302nm/312nm)
 (View all wavelengths on the main page) 

There have been several posts in our Facebook Group (https://www.facebook.com/groups/fluorescentminerals) recently identifying some of the mystery minerals found in pieces from Afghanistan over the past couple of years.  This area yields a large variety of fluorescent...

This beautiful 3-color fluorescent rock features a combination of calcite, willemite and fluorite and is part of a find made by New Mexico based collectors Ken and Gail Hennig, who found several pieces of this material while on a collecting trip in the area of Hidalgo...

This stunning fluorescent rock features a beautiful 3-color combination of calcite, willemite and fluorite and is part of a find made by New Mexico based collectors Ken and Gail Hennig, who found several pieces of this material while on a collecting trip in the area of...

Nodules of barite and aragonite are perched on an underlying base of celestine and fluorite on this beautiful specimen from the Annabel Lee Mine, Cave-In-Rock, Hardin County, Illinois.  Under all UV wavelengths, this piece shows a lovely pastel fluorescent response.  T...

These barite specimens, collected from an abandoned barite mine in Custer County, Colorado, show an unusual multi-wavelength red to orange fluorescent response under all UV wavelengths.  Most fluorescent barite responds to UV with pale white, blue/white, or cream/white...

Macro photo of a large (18mm) translucent yellow stepped cerussite crystal, perched on blades of pink and yellow barite. In MW the cerussite fluoresces lemon yellow. The FOV is 25mm. 

Lit by a 90w MW transilluminator. Specimen is 52 x 50 x 40mm. 

Delicate casts of light blue triangular plumbogummite crystals growing over/after decayed hexagonal green pyromorphite crystals, a few of which still remain. Under MW the outer plumbogummite fluoresces blue, the inner white material fluoresces green, and the pyromorphi...

Colorless massive agrellite crystals which fluoresce bright violet pink in MW and SW. This mineral is brightest in MW, pictured here. 

Lit by a 90w MW transilluminator. Specimen is 64 x 44 x 20mm. 

This is a spectacular 4-color, mixed mineral, fluorescent specimen from the Franklin Mine, Franklin, New Jersey.  This rock contains sphalerite, chlorophane, apatite and willemite.  Depending on the UV wavelength of excitation, this piece shows a colorful variety of fl...

Mariposa calcite specimens are produced by several mines in the West Camp area of the Santa Eulalia Mining District in the Mexican State of Chihuahua.  This specimen is likely from either the Potosi Mine or the Buena Tierra Mine.  Mariposa, or butterfly calcite is uniq...

A beautiful fluorescent calcite from the Viburnum Trend in southeastern Missouri. This large single crystal (~4 Inches long) on matrix is from the West Fork Mine, Reynolds Co., Missouri. The calcite only responds under mid wave UV and shows little to no fluorescence un...

This is a manganoan calcite nodule on a goethite matrix, from a location not generally known for producing fluorescent minerals- the Montreal Mine, Montreal, Wisconsin. This multi-wavelength reactive specimen is intensely bright under mid wave UV, rivaling the brightes...

Plate of scalenohedral calcite crystals showing an unusual purple/blue fluorescent response under mid wave UV (302 nm).  This specimen is from an uncommon midwestern location; the Valders Quarry, in Valders, Manitowoc County, Wisconsin.  The size of this piece is 89 x...

Aesthetic cluster of waxy, pale yellow, calcite scalenohedrons and minor chalcopyrite on a minimal limestone matrix, from the Sweetwater Mine, Ellington, Reynolds County, Missouri.  As shown in the photographs below, under UV, the calcite shows a beautiful multi-wavele...

This spectacular fluorescent specimen features multiple golden, twinned, calcite crystals on a matrix of dark purple, hydrocarbon-included fluorite, from the Denton Mine, Cave-In-Rock, Hardin County, Illinois. As seen in the composite photograph below, this specimen sh...

Older Posts >

Please reload

Email comments or suggestions:

Home

RSS Feed
  • reddit
  • Facebook Social Icon

Subscribe to our RSS (Real Simple Syndication) feed to get new posts delivered directly to your desktop!

Nature’s Rainbows is a non-commercial web site maintained entirely by volunteer hobbyists and contributors.  Our mission is to provide information about UV and luminescence, premium fluorescent mineral photos, and a fluorescent mineral database for the enjoyment of FL mineral collectors around the world.  Information on this web site is covered under a Creative Commons License.


Feel free to contact us with comments and suggestions.

Like us on Facebook!