Andradite - angew. Mineralogie

Andradite
VIII - Nesosilicates (Garnet Group)

Crystal habit of Andradite

Andradite

`Name`		`Andradite`
`Chemistry`		`Ca₃Fe³⁺₂[SiO₄]₃`
`Hardness`		`6.5 - 7.5`
`Lustre`		`vitreous - greasy`
`Colour`		`brown, colourless, green, black, grey`
`Streak`		`white`
`Density [g/cm³]`		`3.7`
`Crystal habit`		`isometric, crystals rhombic dodecahedron`
`Cleavage, Fracture`		`fracture conchoidal to splintery`
`other characteristics and occurrences`		`melanite = black variety (Na+Ti)` `topazolite = yellow` `demantoid = green` `contact mineral in contact metamorphic limestone and skarn`

© 2004 Büro für angewandte Mineralogie · Dr. Stephan Rudolph · D-47918 Tönisvorst

These recommendations are believed to be correct. However, no guarantee of their accuracy is given. Therefore, purchasers shall make their own tests to determine suitability for their use. These products are offered for industrial and related uses (e.g. research and development) only. However the user must take the necessary precautions appropriate for products containing chemicals. This description does not imply the absence of any patents, the responsibility whatsoever solely rests with the user.