Difference with red garnet
Garnet is homogeneous, no pleochroism, and ruby ​​chromaticity is obvious; under ultraviolet light, ruby ​​has red fluorescence, while garnet is inert; when magnified, garnet is clean inside, ruby ​​inner gas bag The body and solid inclusions are abundant.
Difference with red spinel
The spinel is homogeneous and has no pleochroism, and its refractive index is lower than that of ruby. When the magnifying inspection is performed, the spinel has a beaded arrangement of octahedral negative crystals.
Difference with red tourmaline
Tourmaline and tourmaline have more obvious pleochroism, and faceted gemstones can be seen in the right direction after the facets are ghosted.
The difference with andalusite
Andalusite has strong pleochroism visible to the naked eye. Its color is brown, yellow, green, brown and maroon. In short-wave ultraviolet light, the andalusite has no medium-green, yellow-green fluorescence, while the ruby ​​has no to medium red fluorescence. Ruby has a distinct Cr absorption line in the red zone.
The difference with red glass
The red glass is homogeneous and has no pleochroism. It can be enlarged to check the phenomenon of bubbles and vortex in the red glass. It has a typical shell-like fracture, obvious ridgeline, small glass density and light hand rubbing.
Silk Neck Pillow,U Shaped Pillow,Travel Pillow U Shape,Silk Travel Neck Pillow
YUNFREESILK , https://www.yunfreesilk.com