Chalcopyrite
Fresh surfaces are brass-yellow, while tarnished pieces may show vivid purple, blue and green colours. Learn its mineral identity, hardness, care, common treatments, authenticity notes and traditional associations.
Read guide →Editorial guides
Traditional Use: <span>Energy</span>
Mineralogy, identification, care, lapidary craft, interiors and documented cultural history—with traditional beliefs clearly labelled as a separate subject.
Bornite
Its iridescent tarnish can shift through purple, blue and bronze as the surface oxidises. Learn its mineral identity, hardness, care, common treatments, authenticity notes and traditional associations.
Read guide →Rutilated Quartz
Golden needle inclusions can create dramatic internal geometry without being cracks. Learn its mineral identity, hardness, care, common treatments, authenticity notes and traditional associations.
Read guide →Garnet
The group includes familiar deep red almandine as well as bright orange spessartine and green grossular varieties. Learn its mineral identity, hardness, care, common treatments, authenticity notes and…
Read guide →Crazy Lace Agate
Its chaotic looping bands are more important than transparency. Learn its mineral identity, hardness, care, common treatments, authenticity notes and traditional associations.
Read guide →Carnelian
Its warm orange-red colour can range from translucent peach to deep reddish brown. Learn its mineral identity, hardness, care, common treatments, authenticity notes and traditional associations.
Read guide →Calcite
Calcite often shows obvious cleavage, waxy lustre and strong colour in decorative pieces. Learn its mineral identity, hardness, care, common treatments, authenticity notes and traditional associations.
Read guide →