Axotomous antimony glance

Axotomous antimony glance
Bournonite (Potosí, Bolivia)
General
CategoryMinerals

Axotomous antimony glance — is a partially obsolete, now trivial name under which at least two related minerals from the subclass of sulfosalts (complex sulfides),:16 containing antimony, lead and sulfur were known in mineralogy and mineragraphy. Moreover, all three words in the title had meaningful meaning from the point of view of scientific terminology.

Axotomic, axotomous (German: axotomatisch) — meant that the mineral had a so-called perfect cleavage in a certain direction, giving a plane of easy fracture.:10
Antimony — meant that the mineral contains a significant amount of antimony and is of interest as a natural mineral stibnite of one or more metals.
Glance — meant not just the presence of a metallic luster (shine) on the surface of a mineral, but, first of all, belonging to a broad morphological group of minerals, the so-called glances.