Subject ASC000303s

Keywords

inscription: {"text":["Thickness of section","28 microns","Relative retardation","340 micromillimeters","Birefringence","The refractive indices of crystals of the same mineral on the margin of the rock slice varied between 1640 and 1656.","Scale of Microns","Magnification 83 times"]}

classification_count: 8
group_id: "GSC000000g"
id: "5dc4464d7716a10004002948"
keywords: ["Microscopy","geological","sections","Determination of minerals","graph","minerals","mineral"]
page_id: "816313"
reduced: [{"type":"inscription","coords":[520,513,0,0,0,0],"value":{"text":["Thickness of section","28 microns","Relative retardation","340 micromillimeters","Birefringence","The refractive indices of crystals of the same mineral on the margin of the rock slice varied between 1640 and 1656.","Scale of Microns","Magnification 83 times"]}}]
scale: 0.3663003663003663
subject_id: "ASC000303s"
volume: "ser. 2, v. 12 (1913)"
year: "1913"