Your cart is empty.
Your cart is empty.When white light travels though a stone, one or more of wavelengths that produce color are absorbed
jusitn mynatt
2025-09-03 15:24:53
This little device works perfectly! The viewing spectrum is plenty large, and very accurate. I can easily make out the main absorption lines of the sun when looking at clouds. Fluorescent lights really show their unique spectrum well! I am using it for gemology purposes, and I find it to be a wonderful pocket sized piece that works VERY well. For the price, it's a steal! I really wanted accurate linear diffraction grating, for it to be very portable for shows, and a decent price, and this unit excels at all the above. The only thing it is missing is a scale, but I can certainly get by without it. Highly recommended for the price!
L. B. JENNINGS
2025-08-02 18:58:51
Ordered this to determine the nature of some particular gemstones. This immediately removed any shadow of a doubt that they are genuine.
Torrence Meister
2025-07-12 09:54:05
Arrived in a plastic bag.arrived with, I think, 3 layers of unnecessary packaging? (I didn't track closely - sorry) The bag inside the leather case was over the top.'works well enough for my use case (identifying if lights are broad spectrum or not).
R. Swenson
2025-07-06 12:43:43
Wanted a spectroscope to check absorption lines and thus identify gems. My trial stone was a synthetic ruby. Spent about $200 on a prism based unit that looked like one shown in a book I had. EXTREMELY difficult to catch a glimpse of the narrow absorption lines at the spectrum ends. No luck with sapphire or emerald either. Next bought a $10 plastic diffraction spectroscope. No success. Then I got this one. Had no trouble seeing all the ruby absorption lines upon first look. A solid metal unit that is a bargain for the price. I also like the leather pouch it comes in. It is pocket size which is good and bad: easily carried and easily misplaced, which I did with my first purchase. I bought another one (later found the one I misplaced, will keep both). Very pleased with this one - after going through three, this is the one!You do have to know how to use a spectrometer as there are no instructions. At this price you can’t expect a wavelength scale so you have to know what you are looking for. The $200 unit I mentioned had such a scale but was not very effective as a spectrometer and was difficult to adjust during use. For me, the value, quality, and clean view of absorption lines gave this little jewel 5 stars!
Don Burdick
2025-07-03 20:21:35
There are no instructions so I don't know if it works.
Michael kelby
2025-06-02 11:04:18
Saves so much time in the field auditing
Harold P Spears
2025-05-22 13:14:22
I can't get anyasorption lines to show up n this scope. What am I doing wrong?
Wade
2025-05-17 12:03:06
It works okay under optimal lighting conditions. The better sunlight or sunlight conditions the better although even then one must be intermediate or advanced in experience with the intrument
Customer
2025-04-07 14:38:48
Spectrum does not appear as expected, the product is unusable. No clear absorption areas. Just wasted my money :(
lrch
2025-02-28 17:19:13
Separa muy bien los colores y la imagen es brillante, aunque preferirÃa un tamaño mayor cumple las expectativas
Racso
2025-02-15 15:37:18
El tamaño es ideal para llevar
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