mineral agate 1

Mineral Agate

By Mary Nelson

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Chemical Composition=SiO2

Group=Quartz

Crystalline makeup= Hexagonal

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Uses

http://www.google.com/url?sa=i&rct=j&q=&esrc=s&frm=1&source=images&cd=&cad=rja&docid=3cvOXv0J1mo59M&tbnid=-wqBkfcOXSTRsM:&ved=0CAUQjRw&url=http%3A%2F%2Fwww.greatsouth.net%2Fitem%2FM421%2FAgate_Wind_Chime&ei=Gj9pUrawL9O3kQft-4GgAQ&bvm=bv.55123115,d.eW0&psig=AFQjCNH9CnWZmkwggo3eagMw4jh1iSX2hA&ust=1382715524958434

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Properties

Fracture= conchoidal- curved breakage

Color= multicolored in banded formation. Rare agates are iridescent- can be different colors at different angles

Luster=glassy

Hardness=7

Streak= white

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Special Properti

esPiezoelectric- substance that generates an

electrical charge when under stress

fluorescent- usually glows green or white

triboluminescence- flash of light produced when a material is subject to friction, impact, or breakage

http://geology.com/minerals/triboluminescence/

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Where are Agates Found?

Kentucky

South Dakota

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mineral agate 1

Technology

rare agates

kentuckysouth dakota

breakage http

different colors

properties fracture

different angles luster

white hardness

quartzcrystalline makeup