Gem Spectroscope Page

: These use a high-density grating to split light evenly across the spectrum.

: The red end is often compressed while the blue end is stretched, which can make readings trickier to interpret. Key Identification Indicators gem spectroscope

What you are looking for are —dark vertical lines or fuzzy blocks where light is missing from the rainbow. Best Gemstone Tool (Spectroscope) : These use a high-density grating to split