What is meant by the term "grain" regarding minerals and crystals?

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What is meant by the term "grain" regarding minerals and crystals?

2007-08-18 18:04:01 · 2 answers · asked by Gideon 1 in Science & Mathematics ➔ Chemistry

2 answers

A "grain" in a solid that has crystalline components is a fraction of it, a volume - sometimes very small, where the crystallographic orientation is constant. All the atoms sit in a perfect lattice position, consistently. Solids with many "grains" are considered multy- or poly-crystalline and the crystallographic orientation is generally different in each different grain.

2007-08-20 14:26:42 · answer #1 · answered by franz_himself 3 · 0⤊ 0⤋

0.065 gram

2007-08-19 01:11:25 · answer #2 · answered by J.SWAMY I ఇ జ స్వామి 7 · 0⤊ 0⤋