orpiment

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orpiment

a sulfide ore containing arsenic.
References in periodicals archive ?
4] crystallites (as it follows from enlarged bulk lifetimes in Table 1), packing efficiency being defined by crystallographic perfectness of arsenic sulfide polymorphs (decaying in [alpha]-[As.
The method of positron-electron annihilation in lifetime measuring mode is employed to study atomic-deficient nanostructurization in composite systems like those based on arsenic sulfide [As.