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3 results for “surface plasmon resonance” in Craft
Craft · 22 July 2026
Hallmarks and Assay: How Anyone Proves Gold Is Gold
…Fire assay remains the referee method; XRF is fast and non-destructive but reads only the surface. · Karat and fineness describe the same thing on different scales: 18ct is 750 parts per thousand gold. · Plating, filling and surface enrichment are the failure modes that surface-r…
Yusuf Demir · 15 min read
Craft · 5 June 2026
The Alchemy of Craft: What Goldsmiths Know That Machines Don't
…old's chemical inertness, not just its softness, is what makes it uniquely suited to fine surface work and permanent colouring effects. · Recycled gold now dominates workshop supply in many trading centres, changing how goldsmiths think about metal provenance. · What does 18k gol…
Yusuf Demir · 16 min read
Craft · 3 August 2026
The Wedding-Season Bid: How Jewellery Demand Sets the Floor
Half the world's gold is worn, not stored. In India and China that distinction barely exists — and the buying behaviour it produces is the most reliably contrarian force in the entire market. · Jewell…
Yusuf Demir · 15 min read
