Lab Created Pulled Czochralski Color Change Alexandrite Rough
Lab Created Pulled Czochralski Amethyst Rough
Gram Price: ฿1,288.77
Lot Quantity: 5 grams
฿6,443.85
Description
ROUGH STONE DETAIL
- Origin: Grown in Lab by Pulled Czochralski method. One of the best ways to produce top quality gems.
- Dimensions: About 31x12x7mm
- Grade: AAA
- Clarity: Eye Clean
- Shape: Rough
- Color: Purple Amethyst
- Polish: Very Good
- Hardness: 9 (Mohs Scale)
- Stock Postion: Available
Chemical Properties
- Chemical Composition: Aluminium Oxide (AL2O3), (Chromium; minor component)
- Refractive index: 1.76 – 1.77
- Density: 3.9-4.1
- Specific gravity: 3.58
- Dispersion: 0.018
- Length of Crystal: Length is up to 30-100mm and diameter is about 10-30mm
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