mineraloid
31Hyalite — A sample of hyalite …
32Gossan — is intensely oxidized, weathered or decomposed rock, usually the upper and exposed part of an ore deposit or mineral vein. In the classic gossan or iron cap all that remains is iron oxides and quartz often in the form of boxworks, quartz lined… …
33Maucherite — Cubanite Maucherite Valleriite General Category Arsenide mineral …
34Melonite — For the trademarked surface finish, see Ferritic nitrocarburizing. Melonite Melonite after calaverite, on quartz. Cresson mine, Cripple Creek, Colorado. Size: 1.3 x 0.9 x 0.4 cm …
35Mellite — General Category Organic compounds Chemical formula Al2[C6 …
36Moss agate — pebble, 1 inch (25 mm) long. Montana mo …
37Odontolite — Odontolite, also called bone turquoise or fossil turquoise or occidental turquoise, is fossil bone or ivory that has been traditionally thought to have been altered by turquoise or similar phosphate minerals such as vivianite. References… …
38Descloizite — specimen from Berg Aukas (Berg Aukus), Namibia, 9.5 x 8.9 x 4.9 cm]] General Category Vanadate mineral …
39Copaline — Copalite (or copaline), also termed fossil resin and Lowgate resin, is a naturally occurring organic substance found as irregular pieces of pale yellow colour in the London Clay at Highgate Hill. It has a resinous aromatic odour when freshly… …
40Domeykite — General Category Arsenide mineral Chemical formula Cu3As …
