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Gemstones, Minerals & Fossils
Gemstones and Minerals
Blueish rock what is it ?
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<blockquote data-quote="Goldpick" data-source="post: 348441" data-attributes="member: 1695"><p>Same as Heatho, thought the streak should be on the red end of the scale of brown - could also be down to other impurities in the rock. Also appears to be some irridecent coating on parts of the rock, may well be a hydrothermal sourced hematite - think they list the coating as an aluminium/phosphate combination.</p></blockquote><p></p>
[QUOTE="Goldpick, post: 348441, member: 1695"] Same as Heatho, thought the streak should be on the red end of the scale of brown - could also be down to other impurities in the rock. Also appears to be some irridecent coating on parts of the rock, may well be a hydrothermal sourced hematite - think they list the coating as an aluminium/phosphate combination. [/QUOTE]
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Gemstones, Minerals & Fossils
Gemstones and Minerals
Blueish rock what is it ?
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