Stichtite
| Refractive Index : 1.545 – 1.518 |
| Optical Characteristic : DR, U+ |
| Specific Gravity : 2.22 – 2.16 |
| Formula : Mg6Cr2(CO3)(OH)16.4(H2O) |
| Crystal System : Trigonal |
| Variety/Species : All |
| Species/Group : stichtite |
| Birefringence : 0.027 |
| Dispersion : |
| Hardness : 1.5 to 2.5 |
| Toughness : poor |
| Ultrasonic : Never |
| Steam : Never |
| UV Long : Inert |
| UV Short : Inert |
| Pleochroism : None |
| Strength : N/A |
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| Pleochroism Colors : None |
| Heat : sensitive |
| Acids : sensitive |
| Light : stable |
| Polish Luster : vitreous |
| Fracture : Uneven |
| Fracture Luster : |
| Clarity Type : N/A |
| Tones : N/A |
| Saturations : N/A |
| Cause of Color : |
| Enhancements : none |
| Cleavage : perfect 1 direction. |
| Color Range : Lilac, violet, violetish, pinkish |
| Transparency : translucent to opaque |
| Phenomena : None |
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| Separations : Stichtite from- |
| Identifying Characteristics and information Pale violet blue streak. |
| Spectral Data Three lines in the red at 6655 to 6300. |
| Trade Names and Misnomers Barbertonite Stichtite |
Tags: Barbertonite, stichtite, Trigonal
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