The diamond dust has the same properties of larger diamonds, but the tiny diamond particles cannot be set into jewelry by themselves. It is carefully gathered after cutting, and comes to good purpose in many industries.
There are many other dangerous sharks in the Mediterranean, including: 1  Blacktip shark (Carcharhinus limbatus) 2  Smooth hammerhead shark (Sphyrna zygaena) 3  Scalloped hammerhead shark (Sphyrna lewini)  Great hammerhead shark (Sphyrna 1  mokarran) Shortfin mako shark (Isurus oxyrinchus)  Grey nurse or sandtiger shark (Carcharias taurus)
Hexanchiform sharks have a single dorsal fin, either six or seven gill slits (versus the 5 found in all other existing sharks), and no nictitating membranes (protective third eyelids) . The frilled shark, Chlamydoselachus anguineus, is currently one of only two known species of frilled sharks.The southern African frill shark, C. africana, was recently discovered (2009) off southern Angola, Namibia and South Africa.rilled sharks, Chlamydoselachus anguineus (Garman, 1884), aka frill sharks, frill-gilled sharks, Greenland sharks, scaffold sharks, and silk sharks are members of the most ancient frill and cow sharks order, Hexanchiformes.