Cafetite

Cafetite ((Ca,Mg)(Fe,Al)2Ti4O12·4H2O) is a mineral found in northern Russia.
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General Information:
 Chemical Formula:
Ca(Fe+++,Al)2Ti4O12·4(H2O)
 Composition:
(Molecular Weight = 598.69 gm)
Calcium 6.69 % Ca
Titanium 31.99 % Ti
Aluminum 1.35 % Al
Iron 15.86 % Fe
Hydrogen 1.35 % H 
Oxygen 42.76 % O 
 Empirical Formula:
CaFe3+1.7Al0.3Ti4O12·4(H2O)
 Environment:
In miarolitic cavities in pegmatites cutting pyroxenite.
 IMA Status:
Approved IMA 1959
 Locality:
Afrikanda massif, Kola Peninsula, Russia.
 Name Origin:
Named for the composition (Ca, Fe, Ti).
Physical Properties:
 Cleavage:
[???] Good
 Color:
colorless or pale yellow.
 Density:
3.28
 Diaphaniety:
Transparent
 Habits:
Radial - Crystals radiate from a center without producing stellar forms (e.g. stibnite), Acicular - Occurs as needle-like crystals., Aggregates - Made of numerous individual crystals or clusters.
 Hardness:
4-5 - Fluorite-Apatite
 Luster:
Adamantine
 Streak:
white
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