General Information:
Chemical Formula:
(Y,Ce,Nd,Ca)Cu6(PO4)3(OH)6·3(H2O)
Composition:
(Molecular Weight = 927.20 gm)
Calcium 0.43 % Ca
Cerium 4.53 % Ce
Yttrium 4.79 % Y
Copper 41.12 % Cu
Phosphorus 10.02 % P
Hydrogen 1.30 % H
Neodymium 1.56 % Nd
Oxygen 36.24 % O
Empirical Formula:
Y0.5Ce0.3Nd0.1Ca0.1Cu6(PO4)3(OH)6·3(H2O)
Environment:
Brecciated hornfels in a traprock quary.
IMA Status:
Approved IMA 1982
Locality:
Laurel (Big Snake) Hill, Secaucus, Hudson County, New Jersey, USA.
Name Origin:
Named for Thomas A. Peters (1947-) and Joseph Peters (1951-), curators of minerals at the Paterson, New Jersey museum and the American Museum of Natural History, New York, respecti vely.
Physical Properties:
Cleavage:
None
Color:
yellow green.
Density:
3.41
Habits:
Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline)., Radial - Crystals radiate from a center without producing stellar forms (e.g. stibnite),
Hardness:
3-4 - Calcite-Fluorite
Luminescence:
Non-fluorescent.
Luster:
Vitreous (Glassy)
Streak:
white
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