About us   Register   Sign-in   Shopping cart

The largest selection of gems in California  

 HOME        DIAMOND      GEMSTONES      WEEKLY SALE    THE VERY BEST      BRIOLETTE    CABOCHONS     CALIBRATED     ROUGH     SYNTHETICS

CHRYSOBERYL

           
 
Image Gemstone           Shape             Weight(ct)   Measurements

Price ($)


Database Results Wizard Error
The operation failed. If this continues, please contact your server administrator.

 

 

Store Hours:
Mon-Sat 10:30AM - 5:30PM

 
PL GEMS, INC.
650 S. Hill Street, Booth D16
Los Angeles, CA 90014

Phone: (213) 623-2829, Fax: (213) 622-3414

Email: plgems@gmail.com
Website: www.plgems.com

Copyright © 2008 PL GEMS, Inc. All rights reserved.

SEARCH

CHRYSOBERYL
Gemstone:
Shape:
Weight (ct):
 to
 
 
Chrysoberyl Facts
Category Mineral
Chemical formula Beryllium aluminium oxide, BeAl2O4
Identification
Color Various shades of green and yellow; brownish, reddish; rarely, blue
Crystal habit slender prisms and tabular form, dimensions are thin in one direction.
Crystal system Orthorhombic 2/m2/m2/m
Twinning Contact and penetration twins common, often repeated forming rosette structures
Cleavage [110] Distinct, [010] Imperfect
Fracture Conchoidal to uneven
Mohs Scale hardness 8.5
Luster Vitreous
Refractive index Biaxial (+) nα=1.745 nβ=1.748 nγ=1.754
Pleochroism Strong in alexandrite
Streak White
Specific gravity 3.5 - 3.84
Major varieties
Alexandrite Color change; green to red
Cymophane Chatoyant