Beryl Archives - Cochise College Geology

Beryl

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Beryl

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beryl-large light green transparent crystal-Brazil

Chemical Group: Silicate

Chemical Formula: Be₃Al₂(SiO₃)₆

Color: Emerald green, pale green, light blue, yellow, white, pink

Streak: White

Luster: Vitreous or resinous

Transparency: Transparent to subtranslucent

Hardness: 7.5 to 8 Specific Gravity: 2.63 to 2.80

Fracture: Conchoidal to uneven

Cleavage: Imperfect and indistinct

Crystal Forms: Hexagonal system. Crystals are usually 6-sided prisms capped with flat surfaces.

Mineral Associations: Found in pegmatites

Identifying Characteristics: Crystal shape and a pale-green color

Uses: As a gemstone; also as a source of the element beryllium

U.S Occurences:
Maine
New Hampshire
Connecticut
North Carolina
California

WORLD-WIDE Occurrences:
Colombia
Afghanistan
Brazil
Russia
Madagascar
SW Africa

Additional Information: If gemstone quality: green is emerald, bluish green is aquamarine, pink is morganite, yellow is golden beryl or heliodor. Beryl comes from the Greek word, beryllos. Beryl is the primary source of the element beryllium. Most beryl comes from pegmatites and must be hand sorted. The most common crystal shape of beryl is a six-sided prism.

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Photos

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beryl-aquamarine-blue crystal in feldspar — Beryl - Aquamarine - Blue Crystal in Feldspar

beryl-aquamarine-blue green-faceted gems-aquamarine2-neotric — Beryl - Aquamarine - Blue Green Faceted Gems - Aquamarine - Neotric

beryl-aquamarine-bluish green-gemmy — Beryl - Aquamarine - Bluish Green - Gemmy

beryl-aquamarine-nearly colorless hexagonal prism crystal — Beryl - Aquamarine - Nearly Colorless Hexagonal Prism Crystal

beryl-blocks of massive light green beryl-Brazil — Beryl - Blocks of Massive Light Green Beryl - Brazil

beryl-aquamarine-pale blue crystal — Beryl - Aquamarine - Pale Blue Crystal

beryl-bluish green beryl crystals in pegmatite — Beryl - Bluish Green Beryl Crystals in Pegmatite

beryl-aquamarine-pale blue transparent crystal — Beryl - Aquamarine - Pale Blue Transparent Crystal

beryl-aquamarine-pale green prism crystal — Beryl - Aquamarine - Pale Green Prism Crystal

beryl-blocks of massive light green beryl — Beryl - Blocks of Massive Light Green Beryl

beryl-different colors of hexagonal beryl prism crystals — Beryl - Different Colors of Hexagonal Beryl Prism Crystals

beryl-broken end of a crystal — Beryl - Broken End of a Crystal

beryl-green faceted emeralds-6xx-emeralds — Beryl - Green Faceted Emeralds - 6xx Emeralds

beryl-green-emerald crystals in matrix — Beryl - Green-Emerald Crystals in Matrix

beryl-different colors of beryl gemstones — Beryl - Different Colors of Beryl Gemstones

beryl-emerald-2 crystals in white matrix — Beryl - Emerald - 2 Crystals in White Matrix

beryl-hexagonal prism crystal of common beryl — Beryl - Hexagonal Prism Crystal of Common Beryl

beryl-green-faceted emeralds in ring — Beryl - Green-Faceted Emeralds in Ring

beryl-heliodor-yellow hexagonal prism crystal — Beryl - Heliodor - Yellow Hexagonal Prism Crystal

beryl-greenish blue crystal in rose quartz — Beryl - Greenish Blue Crystal in Rose Quartz

beryl-heliodor-yellow hexagonal prism crystal — Beryl - Heliodor - Yellow Hexagonal Prism Crystal

beryl-heliodor- faceted gem — Beryl - Heliodor - Faceted Gem

beryl-large light green transparent crystal-Brazil — Beryl - Large Light Green Transparent Crystal - Brazil

beryl-morganite-pin crystal-close view — Beryl - Morganite - Pin Crystal - Close View

beryl-morganite-pink faceted stones — Beryl - Morganite - Pink Faceted Stones

beryl-morganite-pink crystal — Beryl - Morganite - Pink Crystal

beryl-pale blue common beryl crystal — Beryl - Pale Blue Common Beryl Crystal

beryl-morganite-pinkish brown crystals in matrix — Beryl – Morganite - Pinkish Brown Crystals in Matrix

beryl-morganite-pinkish orange crystal — Beryl - Morganite - Pinkish Orange Crystal

beryl-pale green prism crystal — Beryl - Pale Green Prism Crystal

beryl-pale green-massive — Beryl - Pale Green - Massive

beryl-pale green-massive — Beryl - Pale Green - Massive

beryl-pale green-massive — Beryl - Pale Green - Massive

beryl-pale green-massive — Beryl - Pale Green - Massive

beryl-red beryl crystal-rare — Beryl - Red Beryl Crystal - Rare

beryl-yellow crystals in white matrix — Beryl - Yellow Crystals in White Matrix

beryl-yellow beryl crystals in white matrix — Beryl - Yellow Beryl Crystals in White Matrix

beryl-two almost round crystals-each with 24 prism faces — Beryl - Two Almost Round Crystals - Each with 24 Prism Faces

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