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accessory mineral |
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accessory mineral [ak′ses·ə·rē ‚min·rəl] (mineralogy) A minor mineral in an igneous rock that does not affect its general character. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Also, mineral separates are more commonly homogeneous than
large crystals, yet they require more care in purification than the
large crystals due to the presence of impurities and accessory minerals. Accessory minerals are quartz, fluorite, barite
and calcite. The most likely accessory mineral is
gold which may have originated in underlying Birimian basement which was
later remobilized during a Late Proterozoic hydrothermal event
associated with the Buem Formation volcanism. |
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