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Linked by archaic translations and mineralogical misunderstandings, the quarterfinals are ending in hexagons with vivid pyromorphite vs writeable graphite.
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Ultrabasic volcanic rock

A rock classification type
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A chemical classification based on the TAS diagram for normal volcanic rocks with less than 45% wt % SiO2.

This includes, foidite (in part), picrobasalt, basanite (in part) and tephrite (in part).


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Unique IdentifiersHide

Mindat ID:
51207
Long-form identifier:
mindat:1:1:51207:9

Classification of Ultrabasic volcanic rockHide

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