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Gemstones, Minerals & Fossils
Gemstones and Minerals
What rock?
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<blockquote data-quote="Heatho" data-source="post: 237319" data-attributes="member: 487"><p>I'd say most likely Magnetite or Hematite also. Though could possibly be Ilmenite. If you have a ceramic tile you can do a streak test by scraping your mineral on the rough underside of the tile. Hematite will leave an orange/red streak Magnetite will leave a black streak. </p><p></p><p>Could also be Hornblende due to the angle of the cleavage. It is brittle and often leaves cleavage debris behind instead of a streak.</p></blockquote><p></p>
[QUOTE="Heatho, post: 237319, member: 487"] I'd say most likely Magnetite or Hematite also. Though could possibly be Ilmenite. If you have a ceramic tile you can do a streak test by scraping your mineral on the rough underside of the tile. Hematite will leave an orange/red streak Magnetite will leave a black streak. Could also be Hornblende due to the angle of the cleavage. It is brittle and often leaves cleavage debris behind instead of a streak. [/QUOTE]
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Gemstones, Minerals & Fossils
Gemstones and Minerals
What rock?
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