McAfee SECURE sites help keep you safe from identity theft, credit card fraud, spyware, spam, viruses and online scams

Home » Minerals » Beryl

Beryl


Mineral Properties and Uses



What is Beryl?



Beryl is a beryllium aluminum silicate mineral most often found in granites and granite pegmatites. It can also be found in metamorphic rocks or in the veins and cavities of limestones and marbles. Beryl is the pimary ore of beryllium. Gem quality beryls with a specific deep green color are sold under the name "emerald". Different shades of green are known as "aquamarine" . Other gem quality beryls include: heliodore (yellow), morganite (pink) and goshenite (white).


Physical Properties of Beryl

Chemical Classification silicate
Color bluish green, light yellow, golden yellow, pink, white, colorless
Streak colorless
Luster vitreous
Diaphaneity transparent to translucent
Cleavage imperfect
Mohs Hardness 7.5 to 8
Specific Gravity 2.6 to 2.8
Diagnostic Properties hexagonal crystal form, green color, hardness
Chemical Composition beryllium aluminum silicate , Be3Al2Si6O18
Crystal System hexagonal
Uses gemstones, is the primary ore of beryllium


Beryl pegmatite
Beryl crystal in pegmatite from Quadville, Ontario, Canada. Specimen is approximately 3 inches (7.6 centimeters) across.


Morganite Beryl
Morganite, a pink variety of beryl from Minas Gerais, Brazil. Specimen is approximately 1 inch (2.5 centimeters) across.


Caesium bearing Beryl
Cesium-bearing beryl from Madagascar. Specimen is approximately 1 inch (2.5 centimeters) across.



Find it on Geology.com




More from Geology.com


Plate Tectonics
Plate Tectonics: Articles and maps about plate tectonics and the interior of Earth.
Labradorite
Labradorite: A feldspar that produces bright flashes of iridescent colors.
uses of gold
The Many Uses of Gold: Unique properties make gold one of the most useful metals.
Dallol Volcano
Strange Volcanic Landscape! Photos of Dallol Volcano - an explosion crater in Ethiopia.
gem photos
Colored Stones: A colorful collection of gemstones from around the world!
Mount Cleveland
Mount Cleveland is an active volcano in the Aleutian Islands and a threat to air traffic.
city satellite images
What City is This? Can you recognize United States cities from satellite images?
Fluorescent Minerals
Fluorescent Minerals glow with spectacular colors under ultraviolet light.


Aquamarine Beryl
Aquamarine, a blue-green variety of beryl from Tanzania. Specimen is approximately 2 inches (5 centimeters) across.




Yellow Beryl
Yellow beryl from Minas Gerais, Brazil. Specimens are approximately 1/4 inch to 5/8 inch (.64 centimeter to 1.6 centimeters) across.


Beryl
Beryl from Bedford, New York. Specimen is approximately 5 inches (12.7 centimeters) across.


Mineral Information
 Anhydrite
 Apatite
 Arsenopyrite
 Augite
 Azurite

 Barite
 Bauxite
 Beryl
 Biotite
 Bornite

 Calcite
 Cassiterite
 Chalcocite
 Chalcopyrite
 Chlorite
 Chromite
 Chrysoberyl
 Cinnabar
 Clinozoisite
 Copper
 Cordierite
 Corundum
 Cuprite
 Diamond
 Diopside
 Dolomite

 Enstatite
 Epidote

 Fluorite

 Galena
 Garnet
 Glauconite
 Gold
 Graphite
 Gypsum

 Halite
 Hematite
 Hornblende

 Ilmenite

 Jadeite

 Kyanite
 Limonite

 Magnesite
 Magnetite
 Malachite
 Marcasite
 Molybdenite
 Monazite
 Muscovite

 Nepheline
 Nephrite

 Olivine
 Orthoclase

 Plagioclase
 Prehnite
 Pyrite
 Pyrophyllite
 Pyrrhotite

 Quartz

 Rhodochrosite
 Rhodonite
 Rutile
 Scapolite
 Serpentine
 Siderite
 Sillimanite
 Silver
 Sodalite
 Sphalerite
 Spinel
 Spodumene
 Staurolite
 Sulfur
 Sylvite

 Talc
 Titanite
 Topaz
 Tourmaline
 Turquoise

 Uraninite

 Witherite
 Wollastonite

 Zircon
 Zoisite


The Only Diamond Mine in the USA
Mount Rainier Volcanic Hazards
Volcanoes!
What is a Debris Flow?
Who Owns The Arctic?
Rock Type Photo Gallery
Rare Earth Elements
Types of Volcanic Eruptions




© 2005-2014 Geology.com. All Rights Reserved.
Images, code and content of this website are property of Geology.com. Use without permission is prohibited. Pages on this site are protected by Copyscape.