Green gold
On the label: Green gold · Alloy
What it is
Gold alloyed with silver alone, which gives a pale greenish tint; uncommon, used for leaves and accents.
Alloys: Mixtures of metals used because pure gold and silver are too soft to wear; the other metals set the color and the hardness, and sometimes the allergy question.
Wikidata: Natural alloy of gold and silver. Q239481 →
In the research
4 PubMed papers mention it with jewelry, allergy, eyewear or UV; the three most recent:
- A multiplex metabolomic approach for quality control of Spirulina supplement and its allied microalgae (Amphora & Chlorella) assisted by chemometrics and molecular networking · Scientific reports, 2024
- Therapeutic effect of biosynthetic gold nanoparticles on multidrug-resistant Escherichia coli and Salmonella species isolated from ruminants · Veterinary world, 2021
- 'Green' biocompatible organic-inorganic hybrid electrospun nanofibers for potential biomedical applications · Journal of biomaterials applications, 2015
A paper is a paper, not a verdict: titles are listed so you can read them, and a study on one fabric or one filter says little about the piece in your hand.
Other alloys
Clasp & Lens describes materials from the public record and does not appraise, grade or test pieces; what a listing states is the supplier's statement. If a piece causes a rash, take it off; a reaction that spreads or blisters is a doctor's question, and sunglasses are no substitute for impact-rated eye protection where that is required.