Just to confirm that the crushed stuff in the silver paint is quartz, I ran some infrared spectra and compared it to an authentic sample of crushed quartz (Gelest SIS6964.0). The instrument was a Nicolet S10 FT-IR with a Diamond Cell ATR accessory. Both the SR "crystals" and the authentic quartz show the same characteristic absorbances for quartz (main peak of 1080 cm-1, medium peak at 1160 cm-1, and a doublet at 795/775 cm -1). Because of the silver paint, the SR shows a free carrier tilt to the baseline, but the spectra are otherwise identical.
These measurements confirm the earlier EDX results- it's silver paint with some crushed quartz in it.
-Thank you; this thread has been an entertaining read - doubly so when people with spectrometers and more start chiming in.
Still trying to figure out whether I should be full of (righteous!) fury at SR or perhaps rather try to buy stock in the company... :)
My bet is that it is casting sand... the material used for commercial sand casting. It's pure crushed quartz exactly the same texture as the photos. Beach sand has other stuff mixed in and is a finer grit.
Is this not exactly what I said would happen? "POINT ME TO THE SCIENCE" *points him to the science* "I DON'T CARE I'M BUYING ONE ANYWAY"
If all there is to it, is a straight through connection, and the wire is 1 square millimetre CSA, at 23 ohms per kilometre, 5cm of wire is about 1 thousandth of an ohm
From the pictures, the diameter of the wire sure looks to be #20 to #22 gauge. So significantly less than 1 square millimeter.
Plus the really poor solder joints. So a higher resistance than quoted. The poor solder job is probably part of the magic sauce.
In the future, I have a lab full of analytical instruments. And I'm more than happy
and capable of using them.
Every kind of Mass Spec you could possibly imagine including ICPMS
A high resolution bruker FTIR with diamond film ATR
3 different raman spectrometers
9 different NMR's including a solids unit perfect for quartz like things
and 3 different high power Xray crystallography instruments also
perfect for crystals of all sizes.
Analyzing stuff like this is rather trivial