Tag: Minerals
Landscape Agate
Agate is a cryptocrystalline variety of silica, chiefly chalcedony, characterised by its fineness of grain and brightness of color. Although agates may be found...
Amazing Agate Photos
Agate is a cryptocrystalline variety of silica, chiefly chalcedony, characterised by its fineness of grain and brightness of color. Although agates may be found...
‘Superdeep’ diamonds provide new insight into earth’s carbon cycle
Researchers at the University of Bristol have discovered new insights into previously hidden parts of the earth's carbon cycle. The team found that carbon...
Largest diamond in over century found in Botswana
A 1,111 carat "high quality diamond" has been discovered at a mine in Botswana, said to be the biggest find in more than a...
Rare earth element
What are Rare earth elements?
A rare earth element (REE) or rare earth metal (REM), as defined by IUPAC, is one of a set of...
Pyrophyllite
Chemical Formula: Al2(Si4O10)(OH)2
Locality: Tres Cerritos, California, USA; Pyschminsk and Beresovsk, Ural Mountains, Russia.
Name Origin: From the Greek for fie and leaf, in allusion to...
Pyromorphite
Chemical Formula: Pb5(PO4)3Cl
Name Origin: From the Greek pyr - "fire" and morfe - "form" in allusion the recrystallization reaction of the molten mineral.
Pyromorphite is...
Pyrolusite
Chemical Formula: MnO2
Name Origin: From the Greek, pyro and louein, "fire" and "to wash," because it was used to remove the greenish color imparted...
Pyrochroite
Chemical Formula: Mn(OH)2
Locality: Vermland at Pajsberg near Persberg, Sweden.
Name Origin: Named from the Greek, puro, "fire" and khroma, "color", because of the change in...
Pyroaurite
Chemical Formula: Mg6Fe3+2(OH)16·4H2O
Locality: Langbanshyttan, Sweden.
Name Origin: From the Greek, pyro and the Latin aurium, "fire" and "golden" because of the gold-like submetallic scales present...
Pyrargyrite
Chemical Formula: Ag3SbS3
Locality: Fresnillo, Zacatecas, and Guanajuato, Mexico and other silver districts in the world.
Name Origin: From the Greek, pyr and argyros, "fire-silver" in...
Pseudomalachite
Chemical Formula: Cu5(PO4)2(OH)4
Locality: Virneberg Mine, Rheinbreitbach, Westerwald, Rhineland-Palatinate, Germany.
Name Origin: From the Greek, pseudo - "false" and malachite.
Pseudomalachite is a phosphate of copper with...
Pseudobrookite
Formula: Fe2TiO5
Environment: Magmatic, post-volcanic or young volcanic rocks.
Locality: Vesuvius and Etna, Italy.
Name Origin: From the Greek pseudo - "I mislead" and the mineral brookite.
History
Authors...