Inclusions by Stone

Beryl Aquamarine

Beryl Aquamarine

Rain Hollow/ Negative Crystals

Corundum Ruby & Sapphire

SOLID & LIQUID INCLUSIONS

• Silk

• Fingerprint

• Halos

Orthoclase Feldspar Moonstone

Centipedes (cleavage)

Oligoclase Feldspar Sunstone

Geothite/ hematite plates

Almandine (pyrope, spessartine) Garnet

Rutile needles

Grossular, Hessonite Garnet

Treacle

(Due to inter grown grains of hessonite)

Andradite Demantoid Garnet

Horsetail

Iolite

Plates of iron oxide

peridot

Lilipad

Quartz Rock Crystal

2 PHASE

• rutile -actinolite

Quartz Amethyst

Tiger Stripes

Quartz Aventurine

Green Mica

Polycrystalline Quartz

Dendritic (branch like) Moss Agate

Spinel

Octahedra

topaz

2 & 3 PHASE INCLUSIONS

• incipient cleavage (rainbow)

Tourmaline

• Trichites (hairlike)

• Hollow growth tubes

Emerald from Columbia

3 phase inclusions & jagged fluid films

Emerald from Siberia

Actinolite crystals

Siberia = icicles

Emerald from india

2 phase inclusions

Emeralds from zimbabwe

Tremolite needles

Trapiche emeralds

Carbonaceous

Myanmar (Burma) Burmese Ruby

• Fine silk/ rutile

• Rounded crystals of calcite, zircon and spinel

• Swirls of colour creating a treacle effect

• Intersecting twin planes

Thailand (Siam) Ruby

• Fluid inclusions with crystals (partially healed fractures)

• Twin intersecting planes

• May not show fluorescence due to Fe content

Afghanistan Ruby

• Small sizes, less than 2 carats

• May show blue patches

• Calcite, mica and rutile inclusion

Tanzania Ruby

• green zoisite

Vietnam Ruby

Most contains blue patches, can be altered or removed through heating

Kashmir (India) Blue Sapphire

• Slightly milky due to rutile

• Straight colour zoning

• Feather (healed fractures)

• Negative crystals

• Metamict zircons with stress halos

Myanmar (Burma) Blue Sapphire

• Long rutile or apatite

• Silk, fine rutile

• Feathers (healed fractures)

• Hexagonal colour zoning

Thailand (Siam) Blue Sapphire

• Straight or angular colour zoning

• Fine silk

• Feldspar

• Horneblende

• Red uranium pyrochlore

• Fluid inclusions

Sri Lanka (Ceylon) Blue Sapphire

• Mica & Pyrite inclusions

• Metamict zircon with halos

• Elongate negative crystals

• Healed fractures, fingerprints

• Fine rutile, silk

• Two phase inclusions

• Spinel octahedrals

• Also, pink, yellow and orange Padparadscha color

Kampuchea (Cambodia) Blue Sapphire

• Red uranium pyrochlore

• Plagioclase feldspar

• Crystals surrounded by healed fractures

USA, Montana Blue Sapphire

• Hexagonal colour zoning

• Well formed garnet, rutile, calcite and pyrite Frequently violet colour in tungsten light

• Also pink, yellow and pale green

Australia Blue Sapphire

• Strong colour zoning

• Feldspar

• Metamict zircon with halos

• Also yellow, green and parti-coloured

Brazil Emeralds

• Biotite mica

• Thin liquid films (like paving stones)

• Pyrite, talc, chromite, limonite, dolomite, calcite