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Agate (Photo)

Banded aggregate of fine acicular quartz.

Year of discovery: 713 (Japan)

Locality list: 138 localities of agate

• >SiO₂

• Variety: Chalcedony (Massive, Colorless)
• Fluorescence: UV excitation (Green-Yellowish green)

• Color: White-Colorless. Red, Blue, Yellow, Green by impurities
• Streak: White
• Luster: Vitreous

• Habit: Very fine fibrous
• Aggregate: Reniform, Stalactic

Etymology: Gagates River in Sicily, Italy