Iolite definition of Iolite in the Free Online Encyclopedia.

cordierite [′kȯrd·ē·ə‚rīt]

(mineralogy)

Mg₂(Al₄Si₅O₁₈) A blue, orthorhombic magnesium aluminosilicate mineral frequently occurring associated with thermally metamorphosed rocks derived from argillaceous sediments.

Cordierite

[named for French geologist P. Cordier (1777–1861)], also iolite or dichroite, a mineral, a complex aluminosilicate of aluminum, magnesium, and iron; chemical composition, (Mg, Fe)₂Al₃[AlSi₅O₁₈]. Its crystal structure is characterized by a ring construction similar to that of beryllium. Cordierite crystallizes in the orthorhombic system. It occurs in the form of prismatic crystals, irregular clusters, and grains of blue-gray, blue, violet, or brown color; sometimes it is colorless. It has a hardness of 7.0–7.5 on the mineralogical scale and a density of 2,600–2,660 kg/m³. Dichroism is a characteristic feature and is highly pronounced in transparent grains. The mineral effloresces easily to form talc, mica, and other secondary minerals. Cordierite is formed during contact metamorphosis of rocks rich in aluminum and magnesium. Transparent varieties of cordierite are used as gems.

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No references found	For those who find tanzanite is a bit out of their budget, try the lovely iolite. Bold and Unique Top 2008 Jewelry Trends by Ann Knapp / Hobbies community Blue gemstones, symbolizing spirituality and purity, are also available at less expensive prices in the form of blue spinel, iolite and blue tourmaline. Exploring Alternative Options for An Engagement Ring by Ann Knapp / Relationships community A geological tourist in Brimfield - Dana specifies the "road leading to Warren" - might happen upon some lovely iolite, or traces of adularia, mica or garnet. Scientist unearthed state's gems; Work predates modern geology by Telegram & Gazette (Worcester, MA)	iodosobenzene iodoxybenzene iodyrite Iofan, Boris Iofan, Boris Mikhailovich Ioffe bars Ioffe effect Ioffe, Abram Ioffe, Abram Fedorovich Ioffe, Adolf Ioffe, Adolf Abramovich Iogan Eikhfeld Iogan Gansovich Eikhfeld Iogann Ernst Minikh Iogann Filipp Gustav Evers Ioganson, Boris Ioganson, Boris Vladimirovich IOGEN IOI Iokanga Iokhannes Semper Iokubonis, Gediminas Albino Iolani Palace State Monument Iolaus Iolgo Iolite Iolotan Iomega Iomega Corporation Iomud Horse ion ion accelerator Ion Agirbiceanu Ion Agîrbiceanu Ion Andreescu Ion Antonescu ion atmosphere ion backscattering Ion beam mixing Ion Budai-Deleanu ion burn ion chamber ion channel Ion Chobanu ion cloud ion column ion concentration Ion Counter Ion Creanga ion crystal ion current	IOKIYAR IOKK IOKN IOKP IOKS Iokubonis, Gediminas Albino IOL IOL IOL Iol Caesarea IOL implant IOL Master Iola Iola Phone Line Network Iolani Palace State Monument Iolaus IOLB IoLbc IOLCC IOLCF Iole IoLET Iolgo IOLI Iolite IOLM Iolotan IOLP IOLR IOLRI IOLS IOLSC IOLT Iolta IOLTA Immigration Service and Case Report Form IOLTA Service and Case Report Form IOLTS IOLTW IOLUG IOM IOM IOM IOM3 IOMA IOMAC IOMAS IOMAU IOMBA IOMC IOMCA IOMCI

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For those who find tanzanite is a bit out of their budget, try the lovely iolite.

Bold and Unique Top 2008 Jewelry Trends by Ann Knapp / Hobbies community

Blue gemstones, symbolizing spirituality and purity, are also available at less expensive prices in the form of blue spinel, iolite and blue tourmaline.

Exploring Alternative Options for An Engagement Ring by Ann Knapp / Relationships community

A geological tourist in Brimfield - Dana specifies the "road leading to Warren" - might happen upon some lovely iolite, or traces of adularia, mica or garnet.

Scientist unearthed state's gems; Work predates modern geology by Telegram & Gazette (Worcester, MA)

Cordierite (redirected from Iolite)

Cordierite
(redirected from Iolite)