dichroscope gem identification

{"cid":"91125764","title":"Big Eyepiece Dichroscope Gem Identification For Pleochroism","imgUrl":"https:\/\/img.chinax.com\/nimg\/e0\/c0\/9738fdf1e55c7498de3f51a1e236-200x200-1.jpg","attrs":{"Price":"negotiation","Brand Name":"Fable","Model Number":"FID-1A","Minimum Order Quantity":"1pcs","Delivery Time":"1-7 days after received the payment","Place of Origin":"Guangdong, China","Payment Terms":"T\/T, Western Union,Paypal","Supply Ability":"1000pcs Per Month","Packaging Details":"Carton size:30\u00d760mm","Product Length":"53mm","Eyepiece Diameter":"16.5mm","Objective Diameter":"18mm","Application":"Identifying Gem Multi Color Characteristics","Material":"Natural Calcite","Package size":"30mm*60mm","Weight":"100g","Size of window":"2mm*2mm"}}

{"cid":"91091321","title":"Calcite Dichroscope Observing for Pleochromatism Of Gems A24.6351","imgUrl":"https:\/\/img.chinax.com\/nimg\/d5\/61\/fb4a582881d47a87453e964e3bfa-200x200-1.jpg","attrs":{"Price":"FOB $1~1000, Depend on Order Quantity","Brand Name":"CNOEC, OPTO-EDU","Model Number":"A24.6351","Minimum Order Quantity":"1 pc","Delivery Time":"5~20 Days","Place of Origin":"China","Certification":"CE,","Packaging Details":"Carton Packing, For Export Transportation","Payment Terms":"T\/T, West Union, Paypal","Supply Ability":"5000 pcs\/ Month"}}

{"cid":"91179794","title":"Fourier Transform Infrared Spectrometer SL-OA76","imgUrl":"https:\/\/img.chinax.com\/nimg\/b0\/c7\/3939684c29fde75bf53672fae871-200x200-1.jpg","attrs":{"Price":"negotiated","Brand Name":"SKYLINE","Model Number":"SL-OA76","Minimum Order Quantity":"1 Unit","Certification":"CE , Calibration Certificate","Place of Origin":"CHINA","Payment Terms":"L\/C, D\/P, T\/T, Western Union, MoneyGram","Supply Ability":"10 unit \/ month","Packaging Details":"plywood case","Spectral range":"7800-350 cm-1","Detector":"DTGS detector","Resolution":"better than 1.0 cm-1, continuously adjustable.","100% \u03c4 line tilt range":"better than 0.5\u03c4% (2200 ~ 1900cm-1)","Signal to noise ratio":"30000: 1 (P-P value, 4cm-1, one minute scan)","Beam splitter":"imported KBr substrate with germanium plating","Light source":"Imported high-energy, high-efficiency, long-life light source with automatic sleep function to increase the life of the light source.","Interferometer":"Michelson interferometer with 30 degree incident angle","Receiver":"Imported high-sensitivity DLATGS receiver with moisture-proof membrane","Data transmission interface":"USB2.0","Supported systems":"Windows XP, Windows Vista, Windows 7, Windows 8"}}