CORDIERITE, COROACI, MINAS GERAIS, BRAZIL (thumbnail)
15 2 11 50
$355.00
Sale price
$355.00
Regular price
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CORDIERITE, COROACI, MINAS GERAIS, BRAZIL (thumbnail)
$355.00
Sale price
$355.00
Regular price
Shipping calculated at checkout.
Cordierite, also known as iolite in gemology, is a cyclosilicate composed of magnesium, iron, and aluminum. It typically contains iron and exhibits a solid solution between magnesium-rich cordierite and iron-rich sekaninaite, represented by the series formula: (Mg,Fe)2Al3(Si5AlO18) to (Fe,Mg)2Al3(Si5AlO18). A high-temperature polymorph, indialite, shares a structure with beryl and features a random distribution of aluminum within the (Si,Al)6O18 rings. Cordierite is synthesized for high-temperature applications, including catalytic converters and pizza stones.
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