The truth behind the compression gem.

# # The Truth Behind Reconstructed Gems in Gem Science and Mineralogy Perspective

The gem type * * Reconstruction * * that the seller claims is a natural gem is considered academically inaccurate because when the ore is destroyed, it will lose its status as a "natural gem" immediately.

# # # Correct definition and classification

* * Reconstructed Gems * * According to CIBJO standard, is an artificial material formed by gem scrap that has undergone the manufacturing process, has two main characteristics:

1. * * True Reconstruction: * * Use fused gem fragments such as * * Pressed Amber * *

2. * * Composite / Bonded Materials: * * Mix mineral debris with plastic or resin.

# # # Minerals and gems found Reconstruction in the market

* * * Amber (Amber): * * Ambroid

* * * Turquoise (Turquoise): * * Block Turquoise

* * * Lapis lazuli (Lapis Lazuli): * * Co-dyed mineral powder

* * * Coral (Coral): * * Plastic compressed coral debris

# # # Monitoring and distinguishing

Separating this gem from natural ore requires the use of physical testing.

* * * Microscopic Examination: * * Seams of mineral debris and air bubbles were found.

* * * UV Fluorescence: * * Polymers often fluorescent

* * * Specific Stability Measurement: * * Subnatural Value

* * * Hot Point Test: * * Burnt stench from binder

* * * Advanced Instrumentation: * * FTIR for Molecular Structure Examination

# # # Trade Code and Guidance

Claiming that compressed gems are 100% natural constitutes a trade code of conduct is wrong; vendors must clearly state their status, recommending inspection and request certification documents to confirm quality and improvement of materials.

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Store pawn collection by Bunchong Tientong 11 Mar 2026 |# Jewel # Gemstone # ReconstructedGems # CIBJO # Mineralogy