Crystalline surface of a slag, showing an ingrowth

Made:
before 1889

Crystalline surface of a slag, showing an ingrowth of greenish opaque material from the four sides of a tetragonal prism having a dark centre as a chiastolite

Details

Category:
Metallurgy
Object Number:
1889-164/3047
type:
specimen
taxonomy:
  • sample
credit:
John Percy Collection
status:
Permanent collection

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