Materials glossary / Glass, crystal and resin
Sea glass
On the label: Sea glass · Glass, crystal and resin
What it is
Broken glass tumbled smooth by the sea; genuine pieces are frosted and rare in red and blue, and most 'sea glass' jewelry uses tumbled glass made to look like it.
Glass, crystal and resins: Glass, crystal and enamel: the honest, inexpensive end of jewelry, when called what it is.
Wikidata: Pieces of glass that have been naturally weathered by water. Q3117962 →
In the research
1 PubMed papers mention it with jewelry, allergy, eyewear or UV; the three most recent:
- Optical and nonlinear optical properties of sea glass sponge spicules · Progress in molecular and subcellular biology, 2009
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 glass, crystal and resins
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.