Meaning of GERENITE-(Y) in English

GERENITE-(Y)

General Information:

Chemical Formula:

(Ca,Na)2(Y,REE)3Si6O18·2(H2O)

Composition:

(Molecular Weight = 872.18 gm)

La,Ce,Pr,Nd,Sm,12.38 % RE

Sodium 1.32 % Na

Calcium 6.89 % Ca

Yttrium 22.94 % Y

Silicon 19.32 % Si

Hydrogen 0.46 % H

Oxygen 36.69 % O

Empirical Formula:

Ca1.5Na0.5Y2.25REE0.75Si6O18·2(H2O)

Environment:

Cyclosilicate with structural similarites to kainosite-(Y) and leifite. Found in an aplite-pegmatite lens.

Locality:

Strange Lake peralkaline complex on the Quebec-Labrador border, Canada.

Name Origin:

For Richard Geren (1917-), former executive vice-president of the Iron Ore Company of Canada. Mr. Geren initiated and supported the exploration program of the Strange Lake deposit.

Physical Properties:

Cleavage:

[101] Indistinct

Color:

white or cream white.

Density:

3.3 - 3.52, Average = 3.41

Diaphaniety:

Translucent

Habits:

Microscopic Crystals - Crystals visible only with microscopes., Anhedral Grains - Granular minerals without the expression of crystal shapes,

Hardness:

5 - Apatite

Luminescence:

Non-fluorescent.

Luster:

Vitreous (Glassy)

Streak:

white

More details...

Mineralogy database English vocab.      Английский словарь базы данных минералогии .