Heulandite |
| H4CaAl2(SiO3)6.3H2O |
| Monoclinic |
Forms
c(001), b(010), t(201), and s(201)
Habit and occurrence
Heulandite has been seen only once in the district, on a small fragment of limestone from
the 1,000-foot level in the Sterling Hill mine, with crystals of hematite. The heulandite
crystals are short and thick and prismatic parallel to the clinoaxis, as shown in figure
184.
| Figure 184 Crystal of heulandite, prismatic parallel to the orthoaxis, show in the forms c(001), b(010), t(201), and s(201). Sterling Hill. |
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Website
© by Herb Yeates 1997-2006.
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This
page created: August 12, 2006 6:23 PM
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