Chondrodite


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Related to Chondrodite: chondritis, Datolite, costochondritis, Humite

chondrodite

[′kän·drō‚dīt]
(mineralogy)
Mg5(SiO4)2(F7OH)2 A monoclinic mineral of the humite group; has a resinous luster, is yellow-red in color, and occurs in contact-metamorphosed dolomites.

Chondrodite

 

a mineral of the nesosilicate class, with the composition 2Mg2[SiO4]Mg(F, OH)2. Chondrodite contains admixtures of Fe2+ and Mn. It crystallizes in the monoclinic system, but well-formed crystals are rare. It is found in the form of grains embedded in rocks and in the form of granular aggregates. The color is orange, honey, yellow, or red-brown. The hardness on Mohs’ scale is 6.5, and the density is 3,250–3,300 kg/m3. Chondrodite is a typical mineral of contact metasomatic formations. It is widespread in magnesian skarns in association with olivine, diopside, magnetite, and other minerals. It has also been found in calciphyres and carbonatites.

References in periodicals archive ?
All of these properties are consistent with data reported for chondrodite by O'Donoghue (2006).
The gemmological properties of these samples are comparable with chondrodite from both Sumbawanga and Mahenge.
for habit-forming behaviors, as the Kristalle booth proudly presented, for instance, four good large cabinet specimens of pyromorphite from the Wheatley mine, Phoenixville, Pennsylvania; about a half-dozen large pieces from the Tilly Foster mine, Brewster, New York, showing deep red-brown chondrodite crystals to 2.
His description of the spinel with associated chondrodite from Burma and the use of chondrodite as an indicator of spinel by Burmese miners reminded me of a field observation that I've made good use of.
Sometimes crude gray-green chondrodite crystals to 2 cm may be seen in the matrix pieces.
However, by 1993, when most of the Kiss collection had been acquired, more specimens of similar appearance and association were found, this time labeled "humite or chondrodite (?
All four of the classic members of the humite group - humite, clinohumite, chondrodite and norbergite - are found at Monte Somma/Vesuvius.
She led me to their display cases, crammed with specimens of artistically carved marble matrixes dotted with crystals of spinels along with a handful with rubies or chondrodites.
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