5 5 moh nonlinear crystals

{"cid":"91202079","title":"Bbo \u03b2 Barium Metaborate Optical Crystal Mohs Hardness 4.5-5","imgUrl":"https:\/\/img.ismap.com\/nimg\/91\/6c\/b899ca9ca9f7b2bc75f99fd089e8-200x200-1.jpg","attrs":{"Brand Name":"ZCQ","Model Number":"Customized","Minimum Order Quantity":"Negotiated","Delivery Time":"3-4 weeks","Certification":"RoHS","Place of Origin":"China","Payment Terms":"T\/T","Supply Ability":"1000 pieces per month","Packaging Details":"Safe packaging","Material":"\u03b2 Barium metaborate crystal","Chemical formula":"\u03b2- BaB2O4","Crystal structure":"Tripartite crystal system, 3m point group","Cell parameter":"a=b=12.532 A c=12.717 A z=6","Melting point":"Melting point: 1095 \u00b1 5 \u00b0C","Mohs hardness":"4.5-5","Density":"3.85g\/cm3","Optical uniformity":"\u25b3n \u2248 10-6\/cm","Absorption coefficient":"\u03b1< 0.001\/ cm@1064nm \u03b1< 0.01\/ cm@532nm \u03b1< 0.5\/ cm@2550nm","Thermal conductivity":"\u00c5 C, k1=k2=1.2w\/m\/k, \u00c5 C, k3=1.6w\/m\/k"}}