PYATENKOITE-(Y)


Meaning of PYATENKOITE-(Y) in English

General Information:

Chemical Formula:

Na5(Y,Dy,Gd)TiSi6O18·6(H2O)

Environment:

In hyperagpaitic pegmatites. The titanium-dominent analogue of sazykinaite-(Y)

IMA Status:

Approved IMA 1995 (Dana # Added)

Locality:

Mont Alluaiv in the northwestern part of the Lovozero alkaline massif, Kila Peninsula, Russia.

Name Origin:

For Yu. A. Pyatenko (1928-), prominent Russian crystal chemist.

Physical Properties:

Cleavage:

[0112] Indistinct

Color:

colorless.

Density:

2.68

Diaphaniety:

Transparent to Translucent

Habits:

Rhombohedral Crystals - Occurs as well-formed crystals showing rhobohedral crystals., ,

Hardness:

4-5 - Fluorite-Apatite

Luster:

Vitreous (Glassy)

Streak:

white

More details...

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