"Things You Wouldn't Know If We Didn't Blog Intermittently."
14 September 2010
Delicate crystals of Hematite, Fe
, and Cristobalite, SiO
. I had to look up the latter: "cristobalite is a high-temperature
polymorph of quartz, meaning that it is composed of the same chemistry, SiO2, but has a different structure
..." Much more at the link, where it gets way more complicated than I care to blog.
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