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Suphur with tiny calcite crystals. Maybee, Monroe Co., Michigan. 7,5 x 5 cm. Main crystal measuring 3 cm. (Author: Antonio Alcaide)

Suphur with tiny calcite crystals. Maybee, Monroe Co., Michigan. 7,5 x 5 cm. Main crystal measuring 3 cm. (Author: Antonio Alcaide)

Dimensions: 750 x 563
File size: 45.42 kbytes
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