Gem Identification Blue Chart

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The Blue Chart

Tables of Gemstone Identification

A must for gemmolgists, gemmology students or amatuers to aid in the correct identification of gemstones.

The BlueChart is A4 size, printed on card stock (220gr per m3). It has a total of 13 pages with ring binding. (Not laminated).

A compilation of key information for the gemologist:

- to analyze the results obtained with all the standard gemological tools

- to distinguish between natural and treated gemstones, synthesis and imitations

- to avoid traps and potentially misleading results

Gemstones listed by refractive index

- Clear reading of optical and physical data.

- Visual help to point out quickly characteristic features.

- Natural colors are reproduced.

Key information:

- to identify the gem as natural, synthetic or imitation;

- to recognize possible treatments;

- to prevent misidentification (overlapping values).

Gemstones listed by density.

Density followed by optical data make possible a basic identification of most gemstones

Key information from the other tables will confirm and specify the identification when necessary.

Dichroscope analytical results for gemstones

- Anisotropic stones are listed by colors

- Characteristic pleochroism is described.

Diffraction Spectroscope Analytical Results

Three pages containing the diagnostic and relevant spectrums seen with a handheld diffraction grating spectroscope. Results shown for 79 different gemstones.

(BKBLC)

SKU BKBLC
Brand Lazzarelli
Shipping Weight 0.2200kg
Shipping Width 0.320m
Shipping Height 0.020m
Shipping Length 0.260m
Shipping Cubic 0.001664m3

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