EC6AE2: Quartz (variety chalcedony) - Mamuju area, Sulawesi Indonesia
Quartz (variety chalcedony)

Mamuju area, Sulawesi Barat Province, Sulawesi  Indonesia (2016)

Specimen size: 4.3 × 2.9 × 1.9 cm = 1.7” × 1.1” × 0.7”
Main crystal size: 0.3 × 0.3 cm = 0.1” × 0.1”

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