#mid-wave ultraviolet

Calcite from the Buckwheat Dump at the Franklin Mineral Museum, Franklin, NJ.  Pictured under long wave, mid-wave, and short wave ultraviolet, and white light.

Black/gray/brown scheelite crystal from the Tae Hwa Mine, North Chungcheong Province, South Korea.  Scheelite is an ore of tungsten.  Shown exhibiting the classic blue fluorescence under short wave ultraviolet light, under white light, and showing the red fluorescence that is sometimes seen under mid-wave ultraviolet light.  The nearly equilateral triangle edges measure approximately 1 ¾ inches or 4.4 cm.

Terlingua Calcite from the Little 38 Mine, Terlingua, Texas.  Pictured under long wave, mid-wave, and short wave ultraviolet and white light. 

Aragonite, some with sulfur, from Sicily, Italy.  Shown under white light, short wave ultraviolet, mid-wave ultraviolet, and long wave ultraviolet light.  Crazy colors.  Too bad the one on the bottom left isn’t brighter, but it’s got the best sulfur crystals.  

Witherite, calcite and fluorite from Rosiclare, Illinois.  Pictured under white light, long wave ultraviolet, short wave ultraviolet and mid-wave ultraviolet light.

Mixed fluorescent minerals including afghanite, calcite, albite, scapolite, phlogopite, and others yet to be identified from Badakhshan, Afghanistan.  Pictured under white light, long wave ultraviolet, mid-wave ultraviolet, and short wave ultraviolet.  You can see the other side of this amazingly cool rock here:  https://arockmaniac.tumblr.com/post/183099375015/mixed-fluorescent-minerals-including-afghanite   

A moon?  A planet?  No, it’s a 4-inch orange calcite sphere, pictured under short wave ultraviolet, mid-wave ultraviolet, long wave ultraviolet and white light.   

Mixed fluorescent minerals including afghanite, calcite, albite, scapolite, phlogopite, and others yet to be identified from Badakhshan, Afghanistan.  Pictured under long wave ultraviolet, mid-wave ultraviolet, short wave ultraviolet, and white light.

Baratovite from the type locality of the Dara-i-Pioz Glacier (Dara-Pioz), Alai Range (Alayskiy), Tien Shan Mtn, Districts of Republican Subordination, Tajikistan under short wave ultraviolet, mid-wave ultraviolet, and white light.  The baratovite fluoresces bright bluish white under short wave UV.  Also incorportated in the specimen are agrellite (fluorescent pink), albite (fluorescent red), aegirine (black, non-fluorescent), and an unknown fluorescent green mineral.  The likely candidates for the unknown are willemite & thorite as they are known from the location.  The location is in an extremely remote and dangerous area accessible only by helicopter.