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Name: |
titanite (Sphene) |
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Class: |
Silicates |
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Chemistry: |
CaTiSiO5 Calcium Titanium Silicate |
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Color(s): |
brown-black, yellow, gray, green |
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Hardness: |
5 - 5.5 |
SpecGrav: |
3.4 - 3.6 |
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Fracture: |
conchoidal |
Cleavage: |
distinct |
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Crystal: |
monoclinic (usually sharp edged and tabular |
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Envronment: |
found in magmatic and metamorphic veins |
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Association: |
chlorite, hornblende, rutile, apatite, nepheline, feldspars, quartz, calcite |
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Locals: |
| Germany | Maine, Massachusetts, New York, Montana, USA | Mexico | Austria | Italy | Switzerland | Canada | USSR| Mexico | |
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Misc: |
The Sphene name comes from the Greek "sphen", meaning "wedge", from its sharp wedge shaped crystals. The titanite comes from the titanium constituent of it composition. Soluble in sulfuric acid. |
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Photos |
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1.) Tory Hill, Ontario, Canada |
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