Amber with inclusion
Indeterminate incertae sedis cf. fossil resin inclusion • Body fossil, amber inclusion, organic resin preservation, invertebrate (insect or plant matter obscured)
Geological Period
Cretaceous to Paleogene (commonly mid-Cretaceous or Eocene)
Estimated Age
35 to 100 million years
Preservation Type
Fossilized tree resin (amber) preserving trapped biological inclusions in a glassy matrix
Condition Assessment
Very Good, polished and stabilized specimen with minor surface scratches typical of handled resin jewelry
Taxonomic Classification
Kingdom Animalia or Plantae, Phylum Arthropoda or Tracheophyta (indeterminate due to clarity and polishing)
Morphological Description
Polished cabochon shape displaying translucent amber-yellow and deep brown to black organic zones, high gloss surface finish with internal flow lines and obscured inclusions
Rock Matrix
Polished fossil amber (succinite or similar fossil resin) with no enclosing rock matrix visible
Formation & Location
Baltic region, Dominican Republic, or Myanmar (Burma), depending on resin maturity and fluorescence
Size & Dimensions
Approximately 20 mm to 30 mm in maximum length, typical for small cabochon-cut amber specimens
Value & Rarity
Estimated Market Value
20 to 50 USD
Auction Estimate
15 to 40 USD
Rarity Assessment
Common, widely available as polished specimens and jewelry stones
Scientific Significance
Provides windows into ancient forest ecosystems, paleoclimate, and early resin-producing flora and fauna
Preparation Recommendations
Store away from direct UV light and extreme heat to prevent oxidation and crazing; clean gently with a soft, damp cloth
Notable Features
Striking dual-tone coloration with dramatic contrast between clear amber zones and dark opaque organic flow bands