Probable amber fragment

The specimen appears to be a very small, translucent honey-yellow to pale orange fragment with a resinous/waxy luster and irregular broken surfaces. Amber has a Mohs hardness of about 2–2.5, very low density (typically about 1.05–1.10), no cleavage, and an amorphous rather than crystalline structure. The photograph alone cannot rule out yellow calcite, fluorite, sulfur, feldspar, or colored glass. Amber is unusually light for a stone and may float in concentrated salt water; it also becomes electrostatically charged when rubbed with wool.

Amber forms when plant resin is buried, chemically altered, and polymerized over geological time. Most commercially known amber formed mainly during the Mesozoic and Cenozoic eras, commonly in the Late Cretaceous to Paleogene, roughly 20–100 million years ago. It is often recovered from sedimentary deposits, lignite beds, and coastal placer sediments. Amber is not an igneous, sedimentary, or metamorphic rock in the strict sense; it is a fossil organic mineraloid.

Used as a decorative gemstone for beads, cabochons, carvings, and ornaments. Pieces containing insects or other inclusions can be collectible. It has limited industrial use and is not used as a construction material. Historically it was used for incense, small sculptures, jewelry, and traditional medicines.

Amber commonly ranges from nearly transparent yellow to orange, reddish-brown, or opaque 'butterscotch' material. Natural gas bubbles, flow lines, plant fragments, and insects may occur inside. A warm-needle test can produce a pine-like resin odor, but it can damage the specimen and should be avoided. Copal, younger incompletely polymerized resin, is a common amber imitation and is softer and more soluble.

Field identification is tentative from this image. Useful non-destructive checks include testing whether it is exceptionally light, examining it under magnification for resin flow lines or bubbles, and rubbing it with wool to see whether it attracts tiny paper pieces. Amber should not readily scratch glass; it is easily scratched by a copper coin or knife, though testing can damage it. A UV light may produce a blue, yellow, or greenish fluorescence, but results vary. Common sources include the Baltic region, the Dominican Republic, Myanmar, Mexico, Canada, and parts of the United States. The pale crystalline-looking marks in this specimen mean a mineral fragment or man-made glass remains possible; a close-up, hardness, density, and UV test would be needed for confident identification.