Pocket Reference Natural Gemstone Card with 12 Identified Specimens, 1cm Each Lab Equipment_Water Baths providing a measurable projection surface

providing a measurable projection surface for sizing real images formed by lenses and concave mirrors

625 inches thick in a cast bracket on a rubber-footed wooden base

Long-stem receiver delivery adapter in borosilicate glass features 14/23 socket for distillation collection and extended chemistry apparatus assembly

this LDPE wash bottle pairs a flexible delivery tube and capped tip with a screw top for controlled liquid dispensing

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Pocket Reference Natural Gemstone Card with 12 Identified Specimens, 1cm Each Lab Equipment_Water Baths providing a measurable projection surfaceTwelve 1cm identified gemstone specimens mount on a pocket reference card for on the go gemology identification practice in classrooms or field trips.