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shrinking wildlife habitats
Explore the fundamental principles of physics with the Physics Workshop Kit from Thames & Kosmos
Turn the next spread and a ravishing raptor unfurls and appears to fly off the edge of the page
Adds a playful and memorable touch to any science-themed room
Educational Value: Demonstrates the widespread occurrence of quartz and its importance in geology and technology
White Topaz Ring $30.00 Ring size:7 shrinking wildlife habitatsThis ring features white topaz, a naturally occurring silicate mineral composed of aluminum and fluorine (AlSiO(F,OH)). Known for its clarity and brilliance, white topaz is the colorless variety of topaz and is often used as a durable, natural alternative to diamond. Features: Composition: Aluminum fluorosilicate, with a well defined crystal structure in the orthorhombic system. Appearance: Transparent and colorless with a vitreous luster; often