: Often produce a brighter spectrum, which is helpful for darker or more opaque stones.
When starting out, you generally choose between two technologies, each with its own perks. gem spectroscope
: The OPL Teaching Spectroscope is a widely recommended, affordable choice for beginners. : Often produce a brighter spectrum, which is
: These use a series of prisms to refract light. : Often produce a brighter spectrum
: The red end is often compressed while the blue end is stretched, which can make readings trickier to interpret. Key Identification Indicators