Prism, R Index 1.51 - Designed for Spectrometer, Weight (lb): 0.1, Length (in):0.5, Width (in): 0.4, Height (in): 0.2, Borosilicate crown glass with a refractive index of 1.51
Hexagram* Metric Weight Set Set of 54 contains 20 each of 1 g and 5 g weights, plus ten 10 g, and four 20 g weights. Stackable, color-coded weights come in a plastic storage box. Grades 3+ Ages 8+ LER 4292
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