Azurite
The deep ultramarine blue is one of the most saturated natural colours in common mineral collecting. Learn its mineral identity, hardness, care, common treatments, authenticity notes and traditional…
Read guide →Mineralogy, identification, care, lapidary craft, interiors and documented cultural history—with traditional beliefs clearly labelled as a separate subject.
The deep ultramarine blue is one of the most saturated natural colours in common mineral collecting. Learn its mineral identity, hardness, care, common treatments, authenticity notes and traditional…
Read guide →