References in periodicals archive ?
Pyrite crystals exhibited octahedral, pyritohedral, and equant anhedral (i.
A thumbnail-size pyrite cuboctahedron from Traversella, Piedmont, Italy has, dead in the middle of each octahedron face, a pit of what seems to be pyritohedral outline, all pits being of exactly the same size.
He also offered tetrahedrite in large (half-inch and up) crystals with brilliant pyritohedral pyrite from Utah, in cabinet-size specimens to $25.
net) I picked up a superb thumbnail-size cluster of pyritohedral pyrite from the great classic locality of Elba, Italy, for exactly six dollars.
Tarnished pyritohedral crystals of pyrite to 1 cm with beautiful iridescence appeared at the end of 2006, together with iridiscent galena crystals (see under galena).
Rosettes of arseniosiderite perch on the faces of some large pyritohedral crystals of skutterudite from Vein 59, Ait Ahmane.
Pyrite occurs as subhedral cubic or pyritohedral crystals rarely larger than 1.
Mirror-faced, blindingly lustrous, not at all edge-rounded, spinel-law twinned galena crystals reaching 3 cm rest, or stand straight up, on massive pyrite or (in two elite pieces I saw) on groups of bright, sharp, pyritohedral crystals of pyrite, themselves to 2 cm on edge; a little white calcite gets in there too.
The crystals are pyritohedral and range up to about 1 cm.
According to Konstantin, the site is a now-inactive iron ore quarry where magnetite was the chief ore species; and sure enough, massive magnetite is the matrix for sharp, very bright, simple pyritohedral crystals of pyrite, mostly around 1 cm but exceptionally to 2.
Pyrite crystals from the Main Stage vein deposits are generally pyritohedral or, more rarely, octahedral.
Distinct, small, poorly formed pyritohedral crystals have been seen locally.
Dictionary browser ?
- pyriform area
- pyriform lobe
- Pyrocephalus rubinus mexicanus
- pyrochemical process
Full browser ?
- pyrmidal disease
- Pyrmont and Ultimo Chamber of Commerce
- Pyrmont Bridge Hotel
- Pyro Championship Wrestling
- Pyro Musical Fireworks Center
- Pyro Pilot's Guild
- Pyro Technic
- Pyro Technic
- Pyro's Single Image Stereogram maker