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.
Extremely distinct growth/color-zoning in this blue sapphire of basalt-related growth origin.
Natural Sapphire •
Basalt Related •
Enhancements:
None Detected (None) •
Lighting Conditions:
Dark Field
Photographer:
Kaylan Khourie •
Image Number:
A-004-9142-9
• Field of View = 2.6mm
• Magnification = 4.5x
This blue sapphire of basalt-related growth origin has milky bands of fine particles that are stratified between extremely distinct growth-zoning.
Natural Sapphire •
Basalt Related •
Enhancements:
None Detected (None) •
Lighting Conditions:
Dark Field + Fiber Optic: Oblique
Photographer:
Kaylan Khourie •
Image Number:
A-004-9142-8
• Field of View = 3.4mm
• Magnification = 3.5x
A group of brown crystals with lustrous surfaces are clustered together in this untreated sapphire.
Natural Sapphire •
East Africa •
Enhancements:
None Detected (None) •
Lighting Conditions:
Dark Field + Diffuse Fiber Optic
Photographer:
E. Billie Hughes •
Image Number:
A-004-8531-1
• Field of View = 1.9mm
Iridescent thin films surround a small negative crystal in this basalt related sapphire. Note the hexagonal shapes present, which echo the crystal structure of the corundum host.
Natural Sapphire •
Basalt Related •
Enhancements:
None Detected (None) •
Lighting Conditions:
Fiber Optic: Diffuse Oblique
Photographer:
E. Billie Hughes •
Image Number:
A-004-8214-1
• Field of View = 2mm
Angular dislocation needles interesect in this sapphire from Thailand.
Natural Sapphire •
Thailand (Siam); Chanthaburi •
Enhancements:
None Detected (None) •
Lighting Conditions:
Dark Field
Photographer:
E. Billie Hughes •
Image Number:
A-004-7579-2
• Field of View = 2mm
Cupid’s arrow. An arrow-shaped inclusion pierces the heart of this pink sapphire.
Natural Sapphire •
Madagascar •
Enhancements:
None Detected (None) •
Lighting Conditions:
Dark Field
Photographer:
E. Billie Hughes •
Image Number:
A-004-7379-1
• Field of View = 2mm
A sprinkling of orangey red crystals can be observed in this basalt related sapphire. The crystals are likely pyrochlore.
Natural Sapphire •
Basalt Related •
Enhancements:
None Detected (None) •
Lighting Conditions:
Dark Field + Diffuse Fiber Optic
Photographer:
E. Billie Hughes •
Image Number:
A-004-7336-2
• Field of View = 2mm
Once exposed to longwave ultraviolet light from a torch, the filling in this fissure becomes evident, displaying an orange glow.
Natural Sapphire •
No Origin •
Enhancements:
Heat + Glass Cavity/Fissure Filling (H-GF2) •
Lighting Conditions:
Dark Field + Ultraviolet: Longwave
Photographer:
E. Billie Hughes •
Image Number:
A-004-6974-2
• Field of View = 4mm
When observed with diffuse reflected illumination from a fiber optic light guide, the surface of this sapphire shows a glass filled fissure of lower luster.
Natural Sapphire •
No Origin •
Enhancements:
Heat + Glass Cavity/Fissure Filling (H-GF2) •
Lighting Conditions:
Dark Field + Diffuse Fiber Optic
Photographer:
E. Billie Hughes •
Image Number:
A-004-6974-1
• Field of View = 4mm
This piece of Kashmir sapphire rough we examined had an interesting elongated, prismatic crystal attached to the surface. Analysis with micro Raman identified it as tourmaline.
Natural Sapphire •
India (Kashmir) •
Enhancements:
None Detected (None) •
Lighting Conditions:
Dark Field + Diffuse Fiber Optic
Photographer:
E. Billie Hughes •
Image Number:
A-004-6394-1
• Field of View = 3.5mm
An iridescent fissure shines in this sapphire from Montana. Specimen courtesy Dacques Nini.
Natural Sapphire •
USA (Montana); Non-Yogo •
Enhancements:
None Detected (None) •
Lighting Conditions:
Fiber Optic: Diffuse Oblique
Photographer:
E. Billie Hughes •
Image Number:
A-004-3661-1
• Field of View = 2.5mm
A negative crystal, surrounded by iridescent fingerprints, creates a stunning inclusion scene in this Sri Lankan sapphire. Specimen courtesy Asia Lounges.
Natural Sapphire •
Sri Lanka (Ceylon) •
Enhancements:
None Detected (None) •
Lighting Conditions:
Fiber Optic: Oblique
Photographer:
E. Billie Hughes •
Image Number:
A-004-5729-1
• Field of View = 4mm
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.
