Images:Inclusions

Beryl

Yellow traces of oil from treatment; hexagonal biotite platelet; liquid feathers. Magnification: 20X

2 and 3 phase inclusins in Colombian emerald

Corundum, var: Ruby

Heat treated Mong Hsu ruby Photo courtesy of Apsara.co.uk	Partially dissolved rutile silk in heat treated Vietnamese ruby Photo courtesy of Apsara.co.uk	Rounded calcite guest crystals with 'treacle' colour swirls in un-heated Mogok ruby Photo courtesy of Apsara.co.uk
Treacle colour swirls, growth lines and guest crystals in un-heated Mogok ruby Photo courtesy of Apsara.co.uk	Unusual acicular guest crystal and small particle inclusions in un-heated Mogok ruby Photo courtesy of Apsara.co.uk	Distorted calcite guest crystal in un-heated Mogok ruby Photo courtesy of Apsara.co.uk
Guest crystals in un-heated Mogok ruby Photo courtesy of Apsara.co.uk	Apatite and calcite guest crystals reflecting within an un-heated Mogok ruby Photo courtesy of Apsara.co.uk	Rounded calcite guest crystals in un-heated Mogok ruby Photo courtesy of Apsara.co.uk
Growth lines, guest crystals and un-disolved rutile silk in un-heated Mogok ruby Photo courtesy of Apsara.co.uk

Corundum, var: Sapphire (Unheated)

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
Silk and guest crystals in an un-treated Burmese pink sapphire. Photo courtesy of Apsara.co.uk	Calcite guest crystal in an un-treated Madagascan pink sapphire. Photo courtesy of Apsara.co.uk

Corundum, var: Sapphire (Heated)

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

Many included crystal surrounded by tension halos due to heating. 20cts Sri-lanka sapphire. Photo courtesy of Alberto Scarani

Corundum, var: Sapphire (Beryllium Treated)

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	Beryllium treated orange sapphire, partially re-crystallized melted inclusion. Photo courtesy of Alberto Scarani

Garnet, var: Andradite (Demantoid)

Horsetail inclusions in Russian demantoid garnet. Photo courtesy of Apsara.co.uk	Horsetail inclusions in Russian demantoid garnet. Photo courtesy of Apsara.co.uk	Horsetail inclusions in Russian demantoid garnet. Photo courtesy of Apsara.co.uk
Horsetail inclusions in Russian demantoid garnet. Photo courtesy of Apsara.co.uk	Horsetail inclusions in Russian demantoid garnet. Photo courtesy of Apsara.co.uk	Horsetail inclusions in Russian demantoid garnet.

Garnet, var: Spessartite

Inclusions in a manderine garnet Photo courtesy of John Huff, gemcollections.com

Double refractive crystal inclusion in a Loliondo, Tanzania spessartite. © Tim Spauwen, FGA

Crystal inclusions amidst the typical "sugary inclusions" in a Loliondo, Tanzania spessartite. © Tim Spauwen, FGA

Quartz

Clear quartz with floating discs of gilalite, often referred to as Medusa Quartz or hyperbolized as "Paraiba Quartz" . Taken with fiber optic light, not dark field.	Specimen of quartz with fibrous gilalite disseminated throughout the entire specimen: Also shot with fiber optic light.	A blade of brookite which has acted as a nuclei for a dramatic outgrowth of rutile. Also present, coiled ripidolite aggregates
A star of rutile in quartz from Minas Gerais, Brazil 20X magnification	Colorless quartz cab with inclusions of pale blue indicolite. Magnification: 10X	Typical tourmaline inclusion scene in quartz: Black crystals of schorl. California Magnification: 15X

Spinel

Octahedral (spinel) crystal with stress fractures/ halo which give such inclusions the "flying pyramid" appearance. Photo by John Huff, gemcollections.com	Spinel inclusion in spinel (80 micron in size) Photo by John Huff, gemcollections.com	Apatite inclusions and their star-like outgrowths along the 60 degree hexagonal plane - looking much like stellate dislocation systems, in a cobalt blue spinel. Photo courtesy of John Huff, gemcollections.com
Octahedral spinel inclusions with "Saturn-ring" stress fractures in a Burma red spinel. Photo courtesy of John Huff, gemcollections.com	Octahedral inclusions in a Burma red spinel. Photo courtesy of John Huff, gemcollections.com	Euhedral inclusions in spinel. Photo courtesy of Conny Forsberg