Morganite (Beryl)

Color: Pink to peach
Moh’s Hardness: 7.5-8
Refractive Index: 1.57-1.60
Critical Angle: 39.87°
Specific Gravity: 2.65-2.75
Cleavage: None
Fracture: Conchoidal, tough
Dispersion: Medium (.014)
Heat Sensitivity: Slightly
Dichroism: distinct (pale-pink to lavender-pink)
Birefringence (double refraction): Weak (.006-.009)
Crystal Structure: Hexagonal

Treatments: Generally none, although it is sometimes heated to improve color.

What I prefer to polishing with: Cerium oxide with a Spectra Ultralap.

Jeff's Comments: Cuts and polishes like any other Beryl, usually no problems... I like to use a 1200 Nu Bond lap for pre-polish, it makes the polishing stage faster and easier. Orientating on the "c" is slightly better. Watch for silk and lilly pad type of inclusions perpendicular to the "c" axis. Color is usually pale...

Design Notes: About any design will work well... I prefer a deeper design and often cut Barions because the color of most rough is on the pale side.

Design Links:
Signature #4 - This is one of my favorite cuts in Beryl
Blue Ice - Designed for very long crystals

Rough Links:
Beryl - Index of Beryl Rough
Aquamarine - Zambian
Aquamarine2 - Afghanistan crystals
Aquamarine3 - Huge crystals from Afghanistan
Collector Beryl (unusual colors) - Seafoam Beryl from Brazil
Emerald - Green Beryl form Zambia
Goshenite (clear Beryl) - Gosenite Beryl from Brazil
Helidore - Helidore Beryl (yellow/green) from Afghanistan
Morganite - Light pink to peach Beryl

Bargain Links:
Beryl Bargains

Return to Beryl Information Index

E-mail to inquire or order: jeff@faceters.com