Sapphire Inclusions
Explore sapphire inclusions in Hyperion, the Lotus Gemology inclusion database. Hyperion contains photomicrographs of inclusions and internal features in natural sapphire, documented with information on geographic origin, treatment, lighting conditions, field of view, photographer and published references.
Primary rutile crystals in a sapphire from Colombia’s Mercaderes mines.
Natural Sapphire •
Colombia •
Enhancements:
None Detected (None) •
Lighting Conditions:
Dark Field + Oblique Fiber Optic
Photographer:
E. Billie Hughes •
Image Number:
R-001-8774-2
A crystal with a fracture around it is surrounded by undissolved silk in an unheated basalt-related sapphire.
Natural Sapphire •
Basaltic •
Enhancements:
None Detected (None) •
Lighting Conditions:
Fiber Optic: Diffuse Oblique
Photographer:
E. Billie Hughes •
Image Number:
A-001-8351-1
Polysynthetic twinning and angular growth zoning form a “plaid” pattern when viewed under crossed polars in this sapphire from Batakundi, Pakistan.
Natural Sapphire •
Pakistan (Kashmir); Batakundi •
Enhancements:
None Detected (None) •
Lighting Conditions:
Dark Field + Crossed Polars
Photographer:
E. Billie Hughes •
Image Number:
A-001-7950-3
Fingerprint (viewed perpendicular to the fingerprint plane) in an unheated Madagascar sapphire.
Natural Sapphire •
Madagascar •
Enhancements:
None Detected (None) •
Lighting Conditions:
Dark Field
Photographer:
E. Billie Hughes •
Image Number:
A-001-7435-2
A tiny black uraninite crystal appears to flutter across this untreated sapphire from Sri Lanka.
Natural Sapphire •
Sri Lanka (Ceylon) •
Enhancements:
None Detected (None) •
Lighting Conditions:
Dark Field + Diffuse Fiber Optic
Photographer:
E. Billie Hughes •
Image Number:
A-001-7349-3
Phlogopite mica crystals in an untreated sapphire from Sri Lanka.
Natural Sapphire •
Sri Lanka (Ceylon) •
Enhancements:
None Detected (None) •
Lighting Conditions:
Dark Field
Photographer:
E. Billie Hughes •
Image Number:
A-001-7349-1
A moire fingerprint forms a fine pattern in this untreated sapphire from Sri Lanka.
Natural Sapphire •
Sri Lanka (Ceylon) •
Enhancements:
None Detected (None) •
Lighting Conditions:
Dark Field
Photographer:
E. Billie Hughes •
Image Number:
A-001-6769-1
Decolorized zones concentrate around tiny crystals in this sapphire from Afghanistan’s Badakshan region.
Natural Sapphire •
Afghanistan •
Enhancements:
None Detected (None) •
Lighting Conditions:
Diffuse Light Field (Transmitted Light)
Photographer:
E. Billie Hughes •
Image Number:
R-001-6544-1
Small angular blue spots just beneath the surface of a Kashmir sapphire. Rough Kashmir sapphires are quite unusual in that they also display these intense blue spots on the surface.
Natural Sapphire •
India (Kashmir) •
Enhancements:
None Detected (None) •
Lighting Conditions:
Diffuse Light Field (Transmitted Light)
Photographer:
E. Billie Hughes •
Image Number:
A-001-6605-2
Undissolved rutile silk glitters in this untreated sapphire from Rubyvale, Austrlia.
Natural Sapphire •
Australia •
Enhancements:
None Detected (None) •
Lighting Conditions:
Dark Field + Diffuse Fiber Optic
Photographer:
E. Billie Hughes •
Image Number:
R-001-5998-3
A trapiche pattern shines in this untreated sapphire from Rubyvale, Australia.
Natural Sapphire •
Australia •
Enhancements:
None Detected (None) •
Lighting Conditions:
Dark Field + Diffuse Fiber Optic
Photographer:
E. Billie Hughes •
Image Number:
R-001-5998-2
Undissolved rutile silk glitters in this untreated sapphire from Rubyvale, Austrlia.
Natural Sapphire •
Australia •
Enhancements:
None Detected (None) •
Lighting Conditions:
Dark Field + Diffuse Fiber Optic
Photographer:
E. Billie Hughes •
Image Number:
R-001-5998-1
Sapphire inclusions may include mineral crystals, rutile silk, healed fissures, fluid inclusions, negative crystals, color zoning and other features formed during or after crystal growth. Such features are important to gemologists because they can provide evidence useful in identifying sapphire, understanding its geological history, recognizing treatment and, in some cases, determining geographic origin.
Sapphire Inclusion Photomicrographs
The Hyperion sapphire gallery includes microscopic features found in sapphires from major deposits around the world. Each entry is accompanied by descriptive information and, where available, references to the gemological literature.
What Inclusions Can Reveal About Sapphire
Inclusions are an important part of sapphire identification. Their form, composition, orientation and alteration can help gemologists distinguish natural sapphire from synthetic material, recognize evidence of heat treatment, and study the geological environment in which the sapphire formed.
Hyperion combines inclusion photomicrography with supporting gemological information so that individual features can be compared with documented examples from known sapphire deposits.
About Hyperion
Hyperion is the Lotus Gemology searchable inclusion database. It allows users to browse gemstone inclusions by gem type, geographic origin, treatment and keyword.
