Ralstonite is a complex mineral with chemical formula Na0.5(Al,Mg)2(F,OH)6廈2O. It is an alteration product of cryolite, usually colourless. In this specimen it occurs as tiny octahedral crystals on a leached out crystalline framework as found in cryolite deposits near Ivigtut, southwestern Greenland. Width of sample is 70 mm.
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Details
Creative#:
TOP26739302
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
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No
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