The area is probably producing the most brookite from a quartz-crystal deposit at present, though it is hard to find any good ones for sale. |
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Titanium dioxide has three crystalline forms including anatase, rutile and brookite. |
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Brookite is best known from alpine-cleft-type occurrences, where it is round with anatase, rutile, titanite, quartz, adularia, albite, hematite, calcite, and chlorite. |
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