pyrite

Converse of subject

• replace: Sometimes the carbonized fragments of plants have been replaced by copper pyrites.

Converse of object

• disseminate: A large IP anomaly between Borland Glen and Coul Burn was interpreted as a steep-sided zone of disseminated pyrite with associated hydrothermal alteration.
• contain: The walls are of mixed local stone and much of it is Easdale slate containing iron pyrites.
• comprise: The sulfide minerals recorded from the lodes comprise pyrite, pyrrhotite, chalcopyrite, galena, sphalerite and arsenopyrite.

Adjective modifier

• abundant: Lodes in the Cornubian Orefield often contain abundant pyrite, especially the upper parts.
• arsenical: The lode is a large irregular one of pure arsenical pyrites carrying, in addition to gold and silver, nickel and cobalt.
• common: Both the shales and the quartz veins are impregnated with the common sulfide minerals pyrite and arsenopyrite.

Modifies a noun

• crystal: The pyrite crystal ( above left ) has striations, or lines, on the surface.
• fossil: Pyrite fossils need to be kept in very dry conditions.
• inclusion: A 25mm scalenohedral crystal speckled with pyrite crystal inclusions.
• nodule: Pyrite nodules - rusty brown, heavy, ball-like concretions - are also common.
• formation: They do, however, not catalyze monosulphide conversion, i.e. , pyrite formation.
• content: The pyrite content is low for a phyllic zone.

Noun used with modifier

• iron: Sound Of Music 7 How is iron pyrites more commonly known?
• copper: Iron and copper pyrites, mixed with silt, had eroded from this burned country into the lake and turned it brown.