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Hyalite (Photo), Opal-A_N

A glassy amorphous variety of Opal

Year of discovery: Prehistoric (World), 1895 (Japan)

Locality list: 95 localities of hyalite

• Fluorescence: UV excitation (Green-Yellowish green)

• Color: White-Colorless
• Streak: White
• Luster: Vitreous

• Aggregate: Amygdalodial

• Hardness: 7
• Density: 2.1

• System: Amorphous