Beryl Aquamarine
Red Beryl
Emerald Goshenite

Beryl is often unknown to the general public, even the gemstone-buying public. However, it is one of the most important gem minerals. Beryl is colorless in pure form; it is the many different impurities that give beryl its varied coloration. Without these splendid color varieties, beryl would be a rather ordinary gemstone with only average fire and brilliance. Emerald is the green variety and Aquamarine is the blue variety of beryl.

Other colors of beryl are also used as gemstones but are not as well known.

  • The greenish-yellow variety is called Heliodor.
  • The pink variety is called Morganite.
  • The colorless variety is called Goshenite.
  • The name beryl is used for the red and golden varieties, which are simply called red beryl and golden beryl, respectively.
Emerald is highly prized and is one of the most valued gemstones. Its green color is peerless and all other green gemstones are compared to its intensity. Emerald specimens are often "flawed" with mineral inclusions and fractures; unlike other gems, these are considered part of the stones' "character." These flaws actually help determine natural from synthetically-produced stones. Uncut emerald specimens are rare on the mineral markets, probably because even low grade emeralds can carry a high price when cut as gems. Especially hard to find are true "in-matrix" specimens. Fakes are often produced with natural crystals glued into a "host" rock and then sold as an in-matrix specimen with a highly inflated price.

Aquamarine is also a popular gem although it does not command nearly as high a price as its green cousin. Uncut aquamarines are plentiful but relatively expensive, as would be expected of crystalline gemstone specimens. Large crystals of aquamarine are available on the open market and represent perhaps the largest raw gemstone specimens.


  • Color is varied and includes emerald green, blue to blue-green, yellow, greenish-gold, red, colorless and pink.
  • Luster is vitreous.
  • Transparency: Crystals are transparent to translucent.
  • Crystal System is hexagonal; 6/m 2/m 2/m
  • Crystal Habits typically include the hexagonal prism with pincoid terminations. The terminations are often modified by many different pyramidal faces which can sometimes produce a rounded termination in the rough shape of a used pencil eraser.
  • Cleavage is imperfect in one direction (basal).
  • Fracture is conchoidal.
  • Hardness is 7.5 - 8.
  • Specific Gravity is approximately 2.6 - 2.9 (average)
  • Streak is white.
  • Other Characteristics: Faces on large crystals are often pitted, striated lengthwise and rough.
  • Associated Minerals include micas, quartz, euclase, calcite, tourmalines and some feldspars.
  • Notable Occurrences include Colombia and some African localities for emerald; Brazil, Russia and Pakistan for aquamarine; California, Brazil, Africa, and many other localities for other beryls.
  • Best Field Indicators are crystal habit, lack of good cleavage, hardness and color.
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Available BERYL specimens:
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