Assertion: mineral | /r/HasProperty | examined by wilhelm hisinger
Facets:
value: after this discovery in 1794
type: TEMPORAL
Source sentences:
text: After this discovery in 1794 a mineral from Bastnäs near Riddarhyttan, Sweden, which was believed to be an iron–tungsten mineral, was re-examined by Jöns Jacob Berzelius and Wilhelm Hisinger.