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Alexandrite

Tsarstone collectors guide


Volcanic rock

Volcanic rock
Generally a fine crystalline or glassy igneous rock, which is formed by the solidification of molten magma or lava on the Earth's surface during volcanic action. Such as basalt, obsidian, etc.
Vacuum fluorescence display
Vacuum fluorescence display
www.alexandrite.net/chapters/glossary/vacuum-fluorescence-display.html
Vanadium
Vanadium
www.alexandrite.net/chapters/glossary/vanadium.html
Volcanic glass
Volcanic glass
www.alexandrite.net/chapters/glossary/volcanic-glass.html
V-shaped inclusions in corundum
V-shaped inclusions in corundum
www.alexandrite.net/chapters/glossary/v-shaped-inclusions-in-corundum.html

Tags

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