Link to spectra: https://drive.google.com/drive/folders/1wYam-kMrZDeHr55UA-ZVlcoBzQ1AoabS?usp=sharing

First image: Amazonite (much weaker fluorescence than the others)

Second image: Hyalite opal

Third image: Terlingua-type calcite

All three specimens were excited by an Engenious Designs C255-1 flashlight.

These spectra were acquired with the "Live Stack" feature in SharpCap with multiple 0.5-second exposures (longest possible with the spectrometer's camera module) and a Python script I wrote using PIL and Matplotlib.

Python script: https://drive.google.com/file/d/1aBW5gS8MIqq0BQnT07K2HiujwZuFhZyS/view?usp=sharing

Little Garden Spectrometer: https://www.aliexpress.us/item/3256807055520087.html?src=google&pdp_npi=4%40dis%21USD%2158.42%2158.42%21%21%21%21%21%40%2112000040030860584%21ppc%21%21%21&src=google&albch=shopping&acnt=708-803-3821&isdl=y&slnk=&plac=&mtctp=&albbt=Google_7_shopping&aff_platform=google&aff_short_key=UneMJZVf&gclsrc=aw.ds&albagn=888888&ds_e_adid=&ds_e_matchtype=&ds_e_device=c&ds_e_network=x&ds_e_product_group_id=&ds_e_product_id=en3256807055520087&ds_e_product_merchant_id=5391781228&ds_e_product_country=US&ds_e_product_language=en&ds_e_product_channel=online&ds_e_product_store_id=&ds_url_v=2&albcp=20546179873&albag=&isSmbAutoCall=false&needSmbHouyi=false&gad_source=1&gclid=CjwKCAiA9IC6BhA3EiwAsbltOJ35k3-GYu7DQiUYXXcG_wqL6b1SKX7SZFqLEtyvVXtgT4zPrm87CBoC9kIQAvD_BwE&gatewayAdapt=glo2usa

I live in hungary

Hi all! As many of you know by now, a new triple headed SW/MW/LW UV flashlight has been announced and will be available soon. That's not the end of the story though! I need feedback on what other types of swappable flashlight heads people would want besides the standard heads. My initial wants would be a nice 90 CRI 3000K white light and also a Red light, but that's just me.

So... what more do YOU all want to see? 😃

https://preview.redd.it/zzjaun2xmq1e1.jpg?width=2000&format=pjpg&auto=webp&s=67770e5647d8e63a88c6359d50e6d918eb2969c0

254nm shortwave. It glows so vibrantly. Just wanted to share because I cant stop looking at it!

Anyone know how to clean material from the Franklin Mine area in New Jersey? You can see the dirty (oxidized?) layer to the right that blocks a lot of the fluorescence. Naturally I don't want to use anything that will damage the material.