Delcath Prices Underwritten Public Offering Of Common Stock And Warrants. Delcath Systems, Inc. (DCTH) (the Company), an interventional oncology company focused on treatments for primary and metastatic liver cancers, today announced the pricing of an underwritten public offering of 425,000... Sep 30, 2016 9:22 AM EDT.
Pyrite is a brass-yellow mineral with a bright metallic luster. It has a chemical composition of iron disulfide (FeS 2) and is the most common sulfide mineral. It forms at high and low temperatures and occurs, usually in small quantities, in igneous, metamorphic and sedimentary rocks worldwide.
Pyrite and chalcopyrite can be notoriously hard to distinguish between. There are several mineral properties that can be used to tell the difference, however. First, chalcopyr â¦ ite is slightly softer than pyrite (Chalcopyrite has a hardness of 4.0 on the Mohs hardness scale, whereas pyrite has a hardness of 6.0.-6.5).old and pyrite have a yellowish  color but pyrite has a pale and brassy â¦ color compared to gold.  Pyrites are shaped more like crystals while gold tends to form as a  nugget. Another difference between the two is that gold can be  scratched with a pocketknife while pyrite cannot be scratched.