Inclusions:Sapphire

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From The Gemology Project

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Un-heated Sapphires

Distorted guest crystal (possibly calcite) in an un-treated Burmese pink sapphire.
Photo courtesy of Apsara.co.uk
Silk and guest crystals in an un-treated Burmese pink sapphire.
Photo courtesy of Apsara.co.uk
Unusual cluster of rutile silk in an un-treated Madagascan pink sapphire.
Photo courtesy of Apsara.co.uk


Calcite guest crystal in an un-treated Madagascan pink sapphire.
Photo courtesy of Apsara.co.uk
Guest crystals in an un-treated Sri Lankan blue star sapphire. Fine rutile silk can be faintly seen in the background.
Photo courtesy of Apsara.co.uk
A multitude of guest crystals in an un-treated Burmese blue star sapphire.
Photo courtesy of Apsara.co.uk


Calcite guest crystals in an un-treated Burmese blue sapphire.
Photo courtesy of Apsara.co.uk
Liquid fingerprint inclusion in an un-treated Burmese blue sapphire.
Photo courtesy of Apsara.co.uk
Liquid fingerprint inclusion in an un-treated Burmese blue sapphire.
Photo courtesy of Apsara.co.uk


Liquid fingerprints, guest crystals and two phase inclusions in an un-treated Burmese blue sapphire.
Photo courtesy of Apsara.co.uk
Rounded guest crystals, possibly calcite, in an un-treated Burmese blue sapphire.
Photo courtesy of Apsara.co.uk
Un-dissolved rutile silk in an un-treated Sri Lankan blue sapphire. Iridescent colours can be seen when this inclusion is viewed using a fibre optic light.
Photo courtesy of Apsara.co.uk


Heated Sapphires

Microscopic particle inclusions with straight colour banding in a heat treated Thai blue sapphire. The particles give the stone a sleepy or hazy appearance which is common to sapphires from Kanchanaburi, Thailand.
Photo courtesy of Apsara.co.uk



Beryllium-Treated Sapphires

Dendritic inclusion with 'cotton wool' type inclusions in beryllium-treated sapphire.
Photo courtesy of Apsara.co.uk
Liquid tubular channel inclusions in beryllium-treated sapphire.
Photo courtesy of Apsara.co.uk
Wheat-like feather inclusion in beryllium-treated sapphire.
Photo courtesy of Apsara.co.uk


A cross-sectioned slice through a beryllium-treated sapphire. The orange colour rim is clearly visible around the pink core.
Photo courtesy of Apsara.co.uk


Synthetic

Gas bubbles and curved colour banding in synthetic flame fusion blue star sapphire.
Photo courtesy of Apsara.co.uk
Curved colour banding in synthetic flame fusion pale blue star sapphire.
Photo courtesy of Apsara.co.uk


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