Definitions
from The Century Dictionary.
- noun In petrography See
quartz-porphyry .
Etymologies
Sorry, no etymologies found.
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Examples
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High-grade uranium mineralization encountered in these drill holes occurs primarily in basement rocks that are a heterogeneous mix of variably clay-altered to clay-replaced pelitic gneiss, graphitic pelitic gneiss, granitic pegmatite and microgranite.
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