US$ 250.00
Optically worked double-convex glass lens at 75mm diameter and 100mm focal length
3 glass holds 25mL with PTFE key stopcock for light-sensitive reagent titration applications
75-inch plano-convex lenses in an aluminum frame
and lab prep
Gabbro Specimen Base Size_12.5 x 8" Optically worked double-convex glass lensCoarse grained mafic intrusive rock with dark plagioclase and pyroxene crystals, the intrusive equivalent of basalt in igneous rock classification work.
US$ 250.00
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US$ 110.00
US$ 80.00
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US$ 150.00
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US$ 229.50
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