Shown here is a really gorgeous combination of polylithionite, leucophanite, serandite and others, on albite crystals. As usual, the polylithionite fluoresces yellow under shortwave; the leucophanite crystals also react to SW but are at their best under MW. They also fluoresce a weak purplish-pink under longwave. The albite fluoresces the typical dull red SW response of feldspar; and under MW, small dots of red fluorescing calcite show up (also reactive to SW but much weaker).
Overall, this specimen is at its best under SW and MW combined; it is also really aesthetic in visible light. Shown in the first picture is the response under midwave and shortwave combined; then, in the next pictures, SW, MW, and LW are shown, then lastly, the specimen is shown in visible light.
Nice cabinet specimen, measuring 7,7 cm X 6,3 cm X 5,2 cm (largest leucophanite crystal: 7 mm)
![](https://static.wixstatic.com/media/b3f488_a7c69185468f4507acdb786ca00da7b9~mv2.jpg/v1/fill/w_147,h_159,al_c,q_80,usm_0.66_1.00_0.01,blur_2,enc_auto/b3f488_a7c69185468f4507acdb786ca00da7b9~mv2.jpg)
SW + MW
![](https://static.wixstatic.com/media/b3f488_0faffedcd73542b4a3927d5b00d4a03c~mv2.jpg/v1/fill/w_147,h_159,al_c,q_80,usm_0.66_1.00_0.01,blur_2,enc_auto/b3f488_0faffedcd73542b4a3927d5b00d4a03c~mv2.jpg)
Shortwave response.
![](https://static.wixstatic.com/media/b3f488_68a873e0696440dfbff8558236466260~mv2.jpg/v1/fill/w_147,h_159,al_c,q_80,usm_0.66_1.00_0.01,blur_2,enc_auto/b3f488_68a873e0696440dfbff8558236466260~mv2.jpg)
Midwave only - the leucophanite and calcite show a notable reaction to midwave.
![](https://static.wixstatic.com/media/b3f488_93b67b97840a470486c9977d7335209f~mv2.jpg/v1/fill/w_147,h_159,al_c,q_80,usm_0.66_1.00_0.01,blur_2,enc_auto/b3f488_93b67b97840a470486c9977d7335209f~mv2.jpg)
Longwave UV response. Under longwave, only the leucophanite reacts, and glows pretty dimly. The purple seen here is indeed actual fluorescence and not mere lamp reflections - tested with a piece of polycarbonate between the UV lamp and the specimen.
![](https://static.wixstatic.com/media/b3f488_606524c729ff41aa94c2b40f2e2055fd~mv2.jpg/v1/fill/w_147,h_159,al_c,q_80,usm_0.66_1.00_0.01,blur_2,enc_auto/b3f488_606524c729ff41aa94c2b40f2e2055fd~mv2.jpg)
Specimen shown in white light. Quite aesthetic display piece.