Properties-

Color- Is blue- green, green, white, colorless, brown, and yellow

Streak- white

Hardness- is slightly less than 5

Luster- is a various in large crystal to dull in more compact forms

Other characteristics-  strongly, pyroelectric and piezoelectric

Other Info- it is found in Santa Eulalia and Mapimi ; New Mexico nad New Jersey, USA: England and Zambia.

Best Field Indicators :  are crystal habit, color, density, and luster
 

by:Michelle Priddle
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