Name: |
hemimorphite |
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Class: |
Silicates |
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Chemistry: |
Zn4 Si2O7 (OH)2 · H2O |
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Color(s): |
Clear, white, brown, yellow brown streak: white |
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Hardness: |
5 |
SpecGrav: |
3.4 - 3.5 |
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Fracture: |
conchoidal |
Cleavage: |
perfect |
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Crystal: |
Orthorhombic - Pyramidal - otten bladed or botryoidal |
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Envronment: |
develops at low temperatue in hydrothermal replacement deposits |
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Association: |
,calcite, limonite, aurichalcite, smithsonite |
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Locals: |
| Mexico | England | NM, NJ, USA | Zambia | |
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Misc: |
Named after the hemimorphic nature of the crystals, it has different terminations at each end. The ³hemi² means ³half² and the ³morph² means ³shape². It is also pyroelectric and piezoelectric. |
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Photos |
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1.) Chihuahua, Mexico |
4.) Chihuahua, Mexico |
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