Fire Opal, the burning orange jewel, actually has many colors inside. She burns herself as if she were the bright sun in Mexico. Her play of color enchants people eternally.
Fire Opal has both superior transparency and vivid play color. She was named after her burning color and her passionate brightness inspires women around the world.

“Created Fire Opal,” a beautiful flame, is the eleventh jewel created for Crescent Vert. We successfully reproduce the finest color of orange and transparency for which she has received high praise.

Comparison of Crescent Vert T and Natural Jewels

Items		Created Fire Opal	Natural Fire Opal
Chemical Characteristics	Composition	SiO2・nH2O	SiO2・nH2O
	X-ray Diffraction	Amorphous	Amorphous
	Spectroscopic Analysis	Same as Natural Jewel	Particular Absorption of Fire Opal
Physical Characteristics	Crystal System	Amorphous	Amorphous
	Mohs Hardness	5.0～6.5	5.0～6.5
	Specific Gravity	1.95～2.23	1.90～2.20
Optical Nature	Transparency	Transparent-Semitransparent	Transparent-Semitransparent
	Refractive Index	1.430～1.455	1.430～1.455
	Ultraviolet Ray Examination	(Long Wavelength) Dark Blue Violet - Inert (Small Wavelength) Dark Blue Violet - Inert	(Long Wavelength) Strong Blue White - Inert (Small Wavelength) Pale Blue - Inert
	Special Effects	Play of Color	Play of Color