General Information:
Chemical Formula:
LiFe++PO4
Composition:
(Molecular Weight = 157.76 gm)
Lithium 4.40 % Li
Iron 35.40 % Fe
Phosphorus 19.63 % P
Oxygen 40.57 % O
Empirical Formula:
LiFe2+(PO4)
Name Origin:
From the Greek tri - "threefold" and fylon - "family."
Physical Properties:
Cleavage:
[001] Perfect, [110] Good
Color:
gray, bluish gray, brownish, or blackish.
Density:
3.4 - 3.6, Average = 3.5
Diaphaniety:
Transparent to translucent
Habits:
Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline)., Massive - Granular - Common texture observed in granite and other igneous rock.,
Hardness:
4-5 - Fluorite-Apatite
Luminescence:
None.
Luster:
Greasy (Oily)
Streak:
grayish white
More details...