Chalcedony mineral. Chalcedony is a variety of the silicate mineral quartz that forms extremely small, fine crystals. It can occur in a variety of colours. This sample, which grew within the void left in a volcanic rock after it solidified, has formed into small pinnacles as a result of hydrothermal processes, or the circulation of hot water. The sample measures 65 millimetres across.
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Details
Creative#:
TOP03207800
Source:
達志影像
Authorization Type:
RM
Release Information:
須由TPG 完整授權
Model Release:
N/A
Property Release:
N/A
Right to Privacy:
No
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