BUYING & MARKETING

When investing or shopping for emeralds, it is most important to buy from experts. Emeralds represent a very specialised segment of the gemstone market, and companies, which do not sell many emeralds, may not be as knowledgeable about emeralds as they are about other gemstones. Buy from EMERALDS & EMERALDS Ltd.


CHRYSTAL SYSTEM Hexagonal; 6/m2/m2/m
LUSTRE Vitreous.
TRANSPARENCY Crystals are transparent to translucent.
HARDNESS Moh's scale 7.5 - 8
SPECIFIC GRAVITY 2.6 - 2.9 (average - varying with the composition.)
STREAK White.
CLEAVAGE {0001} imperfect in one direction (Basal)
FRACTURE Conchoidal.
OPTICAL n: 1.57-1.61 Varying with the composition.
COLOUR Variations of green, blue to blue-green, yellow-green, greenish-gold
USES Gemstone, mineral specimens and source of beryllium CRYSTAL HABITS typically include the hexagonal prism with pincoid terminations.
 
 
 
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CLASIFICATION

CLASS Silicates
SUB CLASS Cyclosilicates
CHEMICAL Be3Al2 (SiO3) 6, Beryllium Aluminum Silicate
Relative amounts of additional metals give rise to the different colour varieties

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