While not as colorful as the typical material from the Beltana Mine in Puttapa, South Australia, this specimen is definitely out of the ordinary. The two main fluorescent minerals in it are crystallized, unlike the more typical specimens consisting of a massive assemblage of calcite, willemite and sometimes others.
It consists mainly of calcite crystals, on which a golden baryte crystal sits. The baryte fluoresces very brightly under longwave, quite brightly under midwave and rather dimly under shortwave; the calcite is very bright under shortwave, not quite far behind calcite from the Franklin district in New-Jersey. The baryte is also nicely phosphorescent. The specimen is at it best under SW & MW combined.
Some veining of the typical calcite-willemite assemblage are seen in the matrix.
11,2 cm X 7,4 cm X 7,2 cm, 730 grams (1 lbs 9,7 oz)
Shown in the slideshow below: shortwave & midwave UV combined, shortwave UV (254 nm tube lamp), midwave (310 nm LED), longwave, SW phosphorescence, LW phosph., Visible light.
