-40%
7.665 Carats Natural Wild Melon Chalcedony Cabochon Gemstone Oval WMC21
$ 6.73
- Description
- Size Guide
Description
Primary Stone / ChalcedonyGemstone: Chalcedony
Gemstone Family: Quartz
Carat Weight: 7.665
Gemstone Shape: Oval
Primary Color: pink
Color: Pink
Treatment:
Heated
Country of Origin:
Brazil
Composition:
Natural
Dimension :
14.18 x 10.18 x 6.82 mm
Chalcedony gemology
Species: Quartz
Color: Bluish, white, gray
Chemical composition: SiO, silicon dioxide
Crystal system: (Trigonal) fibrous aggregates
Hardness: 6.5 – 7 (Mohs scale)
Specific gravity: 2.58 - 2.64
Refractive index: 1.530 - 1.540
Birefringence: up to 0.004
Optical character:
Color of streak: White
Absorption spectrum: dyed blue: 690 - 660
Fluorescence: Blue-white
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