Ruby (pink-purple corundum) State of Orissa (Odisha) India

The cost per piece of the smallest corundum.

They are presented in the form of separate short-columned (oblong) and tabular (flat) crystals.
Cross-sectional dimensions from 15 to 36 mm
Weight from 10 to 37 grams
The cost varies from 399 to 1480 rubles per unit.

The photos were taken under artificial and daylight lighting, and cold and warm light was also used).

All corundums are mostly translucent, pale purple, pale burgundy)
There is ionization on cleavage chips - dichroism.
All corundums of natural origin, without foreign impurities and fillings (checked by a gemologist).

The color of the corundum may vary slightly, it depends on the settings of your display, monitor)

Jewelry differences do not include.

Impurities of chromium as a coloring agent in the stone are often the cause of its strong fluorescence.
Fluorescence is noticeable under artificial lighting - corundums glow bright red in ultraviolet rays, as if illuminated from the inside, like "burning coal", making the color of corundums more saturated.

Corundum and ruby are essentially different names for the same natural formation.
Only corundum is a mineral, and ruby is a jewelry term for a transparent red crystal.

But the main difference between ruby and sapphire is not the color, but the chromophore, to which corundum owes color.. The main chromophores of corundum are titanium, iron and chromium. Only when the influence of chromium prevails over the influence of titanium and iron, corundum is considered a ruby.

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