Integrated Electronics Workstation Specifically applied to U;S; Pat; No; 6,554,174

gemological test kit, namely microscope, magnification attachments, fiberoptic probe, polarizing filters, ultraviolet viewer, refractometer, light source apparatus, prism spectroscope, diamond color grading light, diamond thermal conductivity probe, diamond grading tray, heavy liquid set with calibration stones and adjustment liquid, immersion cell, viewing cabinet, leveridge gauge with high setting attachment, calcite dichroscope, thermal reaction tester, carat/gram weight scale, tweezers an...