Rough Crystal (likely Quartz or Glass based on conchoidal fracture patterns)
Rough Crystal (likely Quartz or Glass based on conchoidal fracture patterns) · Rough / Uncut (Amorphous/Irregular)
None (Uncut) Cut
Carat
Undeterminable from macro image (estimated large mass)
Color
Colorless / Transparent with iridescent internal reflections
Clarity
I3 (Heavily included/fractured)
Shape
Rough / Uncut (Amorphous/Irregular)
Overall Assessment
The specimen displays physical characteristics inconsistent with rough diamond morphology, such as conchoidal fracturing rather than octahedral cleavage. Likely a piece of decorative glass or macrocrystalline quartz.
Cut Quality
None (Uncut)
Brilliance
Poor (High surface scattering due to rough texture)
Fire
High iridescent play-of-color due to internal thin-film interference/fractures
Scintillation
Low (Diffused light reflection)
Proportions
N/A (Non-faceted)
Symmetry
None (Irregular rough specimen)
Polish
Natural unpolished surface with conchoidal (shell-like) fracture planes
Fluorescence
Indeterminable under white light
Inclusions
Dense internal fractures, clouding, and prismatic internal stress lines
Blemishes
External pitting, jagged edges, and surface debris/sand particles
Origin
Terrestrial mineral or industrial byproduct
Treatment Detection
None visible; appears to be raw fractured material
Estimated Value
$5 - $50 (assuming specimen Quartz or Glass cullet)
Certification Estimate
Not suitable for GIA/AGS faceted grading; status as diamond is unlikely
Investment Potential
Low (Specimen value only)
Similar Diamonds
Rough industrial Boart (though this specimen lacks typical diamond crystal habit)
Setting Suggestions
Wire-wrapped pendant or kept as a mineral specimen
Care & Maintenance
Avoid harsh impacts as internal fractures may propagate
Interesting Facts
The iridescent colors seen are likely 'iris' effects caused by light diffraction within internal cleavage planes or fractures.