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 -
which materials have a refractive index above 2.6 ?
WDT NNS VBD-AUX DT JJ NN IN CD .
Rutile|Moissanite
select c1 from w where c3_number > 2.6