-40%
6.62 Carats Natural Wild Melon Chalcedony Cabochon Gemstone Round WMC20
$ 5.67
- Description
- Size Guide
Description
Primary Stone / ChalcedonyGemstone: Chalcedony
Gemstone Family: Quartz
Carat Weight: 6.62
Gemstone Shape: Round
Primary Color: pink
Color: Pink
Treatment:
Heated
Country of Origin:
Brazil
Composition:
Natural
Dimension :
11.15 Diameter x 7.09 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
Froo www.froo.com | Froo Cross Sell, Free Cross Sell, Cross promote, eBay Marketing, eBay listing Apps, eBay Apps, eBay Application