Remember, 'spelter' refers to zinc in an industrial context, often linked to manufacturing.

Industrial Material

'Spelter' usually means zinc but may contain small amounts of other metals.

Not Pure Zinc

Although zinc is a nutrient, 'spelter' is not safe to ingest as it's for industrial use.

'Spelter' also applies to artistic work, especially when making stained glass.

In crafts, 'spelter' as solder implies a very zinc-rich composition.

'Spelter' in stained glass work melts easily, which is useful for delicate art pieces.