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Un-Heated Blue Sapphire Inclusions |
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 |  |  | |   | |  | | Rutile silk, guest crystals and liquid fingerprints in an unheated Burmese blue sapphire. | | | | | | |  | | Rounded calcite guest crystals in an unheated Mogok blue sapphire. | | | | | | |  | | Liquid fingerprint (secondary) inclusion in an unheated Mogok blue sapphire. | | | | | | |  | | Guest crystals in an unheated Mogok blue sapphire. | | | | | | |  | | Liquid fingerprints and guest crystals in an unheated Mogok blue sapphire. Note the two-phase liquid inclusions containing a gas bubble in the centre of the picture. | | | | | | |  | | Guest crystals and rutile silk in unheated Mogok blue sapphire. | | | | | | |  | | A multitude of tiny guest crystals in an unheated Mogok blue sapphire. | | | | | | |  | | Guest crystals and rutile silk in an unheated Mogok blue sapphire. | | | | | | |  | | Rutile silk in an unheated Ceylon blue sapphire. The interference colours in this picture can be seen when viewing these inclusions with a fibre optic light. | | | | | | |  | | Rutile silk in an unheated Ceylon blue sapphire. The interference colours clearly visible in this picture. If the stone is heated to high temperatures, these inclusions would dissolve or partially dissolve and become distorted. The interference colours would no longer be visible. | | | | | |  | |  | |
