Cyclosilicates
lab2-19.jpg
Description:
Radiating acicular tourmaline crystals and tourmaline crystal in quartz: NaMg3Al5B3Si6O27(OH)4.
file
lab2-19.jpg
Alt text:
Radiating acicular tourmaline crystals and tourmaline crystal in quartz.
Caption:
Radiating acicular tourmaline crystals and tourmaline crystal in quartz: NaMg3Al5B3Si6O27(OH)4.
Credit:
Courtesy of OCW.
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Fall
2004
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