Tesbihkâr

Copal amber

1 usage
Evidence grade A — publication. The grade states the type of the source, not the truth of the claim.trCopal amberarكهرمان كوبال

Source pending: no literature source has been linked to this entry yet.

Short answer

A compound name in circulation in the trade. The bead-research literature (Falabella 2016, p. 9) treats it as “meaningless”: a substance is either copal or amber. In practice the name is applied to copal or phenolic beads. In resin science the boundary between copal and amber is a convention: Solórzano-Kraemer et al. (2020) report the earlier proposed limit of 1 million years and propose placing the boundary at 2.58 million years; there is no sharp chemical dividing line.

Is this the piece you have?

Photograph it and open a pre-assessment request

Tests you can do at home: Transmitted light · Hydrostatic specific gravity · Simichrome test (may leave a mark on the surface; try it only on a hidden spot)

Meanings in the trade

These are the recorded usages of the term: publications, catalogues and the market. Each usage carries its own source grade and is not a definition.

  • Evidence grade A — publication. The grade states the type of the source, not the truth of the claim.Article or academic publicationPhenolic resin
    The term 'copal amber' is especially unfortunate since it is a meaningless term – a substance is either copal or amber.

Canonical mapping

A mapping is not a conclusion: it is a claim about what the term points to, not a measurement of the material.

No canonical mapping has been proposed for this term.

How to tell — and what it does not tell

No literature record linked to this term.

Sources

A grade states the strength of the source, not of the conclusion.

Recorded usages: 1Evidence grade A — publication. The grade states the type of the source, not the truth of the claim.

Copal amber · Tesbihkâr