mineraloid
41Elaterite — Elaterite, also known as Aeonite, elastic bitumen or mineral caoutchouc. Elaterite is a brown hydrocarbon varying somewhat in consistency, being sometimes soft, elastic and sticky, like India rubber, and occasionally hard and brittle. It is… …
42Condurrite — is a name given to a mixture of cuprite, domeykite and tenorite. It takes its name from the Great Condurrow Mine at Troon, Cornwall in the United Kingdom, which is regarded as the type locality.[1] References ^ Condurrite: Condurrite mineral… …
43Nitratine — or nitratite, also known as cubic niter (UK: nitre), soda niter or Chile saltpeter (UK: saltpetre), is a mineral, the naturally occurring form of sodium nitrate, NaNO3. Nitratine crystallizes in the trigonal system, but rarely occurs as well… …
44Phoenicochroite — Phoenicochroite, also known as melanochroite, is a lead chromate mineral with formula Pb2OCrO4. It forms striking orange red crystals. It was first discovered in 1839 in Beryozovskoye deposit, Urals, Russia.[1] References ^ Mindat.org …
45Tiemannite — General Category Selenide mineral Chemical formula HgSe …
46DeLong Star Ruby — The DeLong Star Ruby, a 100.32 carats (20.06 g) oval cabochon star ruby, was discovered in Burma in the early twentieth century. It was sold by Martin Ehrmann to Edith Haggin DeLong for US $21,400, who donated it to the American Museum of… …
47Oppenheimer Diamond — The Oppenheimer Diamond, a nearly perfectly formed 253.7 carat (50.74 g) yellow diamond crystal, is one of the largest uncut diamonds in the world. It measures approximately 20 × 20 millimeters. It was discovered in the Dutoitspan Mine, Kimberley …
48Mixite — Turquise blue Mixite, Laurium, Greece. Size: 6.8 x 5.0 x 3.6 cm. General Category Arsenate minerals …
49Osmiridium — Osmiridium, (and iridosmine) are names given to natural alloys of osmium and iridium, with traces of other platinum group metals. Osmiridium has been defined as containing a higher proportion of iridium, while iridosmine contains more osmium.… …
50Breithauptite — on calcite from the Samson Mine, St Andreasberg, Harz Mountains, Lower Saxony, Germany (Field of view 17 mm) General Category Antimonide mineral …
