material formula refractive
index(es)
589.3 nm dispersion
431 - 687 nm hardness
(mohs'
scale) density
(g/cm3) thermal
cond. state of
the art
material
formula
refractive index -lrb- es -rrb- 589.3 nm
dispersion 431 -- 687 nm
hardness -lrb- mohs ' scale -rrb-
density -lrb- g\\/cm3 -rrb-
thermal cond .
state of the art
number minimum maximum
number
number minimum maximum
number minimum maximum
minimum_number minimum_parsed minimum_year maximum_number maximum_parsed maximum_year
text text numberspan number numberspan numberspan text timespan
diamond c 1.762 - 1.770 0.044 8.5-9.25 2.4 - 4.2 excellent 1700 -
what 's the difference between the hardness of diamond and the hardness of white sapphire ?
WP VBZ DT NN IN DT NN IN NN CC DT NN IN JJ NN .
1
select ( select c5_number from w where c1 = 'diamond' ) - ( select c5_number from w where c1 = 'white sapphire' )