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GABBRO

Miscellaneous

• Family: None
• Region: None
• Mined At: Unspecified
• Raw Mineral: Yes
• Generic: No

Notes

(Richard Willis)

Plutonic rock, essentially a plagioclase pyroxene with ilmenite, magnetite, hornblende, and olivine. Formed by differentiation of ultra-basics of earthen crusts. A bit similar to norite. Gabbroic clay seems to have been commonly used by prehistoric potters, where readily available, probably for it profuse, built-in grog-like inclusions suitable for open firings.

Authors

• Richard Willis (Owner)

XML

<?xml version="1.0" encoding="UTF-8"?>
<material name="GABBRO" descrip="" generic="0" rawmineral="1" searchkey="" loi="0.00">
<notes>
<note>Plutonic rock, essentially a plagioclase pyroxene with ilmenite, magnetite, hornblende, and olivine. Formed by differentiation of ultra-basics of earthen crusts. A bit similar to norite. &lt;B&gt;&lt;I&gt;Gabbroic&lt;/I&gt;&lt;/B&gt; clay seems to have been commonly used by prehistoric potters, where readily available, probably for it profuse, built-in grog-like inclusions suitable for open firings.&lt;BR&gt;

</note>
</notes>
</material>

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