L'Ammonite 23 and 24 Passage du Commerce 79000 Niort. Our shops are opened all year long from tuesday to saturday from 10h00 to 12h30 and from 2h30 to 7h00 pm.
Small block of ulexite in USA.
Optical fiber as natural stone called television.
The fibers are arranged side by side very regularly.
Primary source of boron.
Dimensions 25x15 mm.
Weight 9.1 gr
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