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Name: |
analcime (analcite) |
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Class: |
Silicates |
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Chemistry: |
Na[AlSi2O6] * H2O hydrous sodium aluminum silicate |
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Color(s): |
clear, white, gray, yellow, red, green |
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Hardness: |
5 - 5.5 |
SpecGrav: |
2.2 - 2.3 |
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Fracture: |
conchoidal |
Cleavage: |
none |
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Crystal: |
Cubic (ikositetrahedrons or cubic forms common) |
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Envronment: |
Occurs primarily in zeolite mineral groups, often in sodium rich basalts or nepheline syenites. Structurally related to "feldspathoids" |
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Association: |
leucite, natrolite, stilbite, apophyllite, prehnite, chlorite, calcite |
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Locals: |
| Colorado, Michigan, New Jersey, USA | Sicily, Italian Alps | Tasmania | Nova Scotia | |
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Misc: |
Name is from the Greek "an alkimos" meaning "not strong", because it is weakly pyroelectric.. |
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