Not a Diamond (Quartz/Amethyst Geode piece)
Not a Diamond (Quartz/Amethyst Geode piece) · Rough / Uncut Natural Crystal Form
None (Rough Mineral Specimen) Cut
Carat
Estimated 150 - 250 carats (based on size relative to carpet fibers)
Color
Non-applicable (Colorless to pale purple/Amethyst)
Clarity
Opaque to Translucent (Included)
Shape
Rough / Uncut Natural Crystal Form
Overall Assessment
The specimen is not a diamond. It is a natural mineral cluster, likely quartz with some amethyst zoning. It lacks the refractive index, hardness, and crystal structure of a diamond.
Cut Quality
None (Rough Mineral Specimen)
Brilliance
Low (Sub-vitreous luster)
Fire
None (Low refractive index compared to diamond)
Scintillation
Low (Drusy sparkle from small crystal faces)
Proportions
Irregular natural cluster
Symmetry
Asymmetrical (Natural Crystal Growth)
Polish
Unpolished (Natural matte/drusy surface)
Fluorescence
Unknown without UV light (typically inert in quartz)
Inclusions
Extensive internal fracturing, mineral zoning, and host rock attachments
Blemishes
Surface abrasions and natural cleavage planes
Origin
Geological formation, possibly Brazil or Uruguay
Treatment Detection
None apparent; appears to be a natural mineral specimen
Estimated Value
$5.00 - $15.00 USD (Decorative mineral value)
Certification Estimate
GIA Rough Stone Report (unlikely for this specimen)
Investment Potential
Low (Common decorative mineral)
Similar Diamonds
None; this is a macro-crystalline quartz specimen
Setting Suggestions
Wire wrapping for a pendant or display as a pocket stone/paperweight
Care & Maintenance
Clean with lukewarm water and a soft brush; avoid harsh chemicals
Interesting Facts
The purple coloring suggests the presence of iron impurities and natural radiation, characteristic of Amethyst.