A specimen of the mineral acanthite (silver sulphide) From Wheal Newton, Harrowbarrow, near Calstock, Cornwall. These are pseudo-crystals, paramorphous after argentite which is only stable at higher temperatures.
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Details
Creative#:
TOP23857856
Source:
達志影像
Authorization Type:
RM
Release Information:
須由TPG 完整授權
Model Release:
No
Property Release:
No
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No
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