Editing Strontianite (section)

== Crystal form ==

Strontianite occurs in several different [[Crystal habit|habits]].  Crystals are short [[Prism (geometry)|prismatic]] parallel to the c axis and often [[Acicular (crystal habit)|acicular]].<ref name=Dana/><ref name=Mindat/><ref name=HOM/>  [[Calcium]]-rich varieties often show steep [[Pyramid (geometry)|pyramidal]] forms.<ref name=Dana/>  Crystals may be pseudo [[hexagon]]al<ref name=Dana/><ref name=Mindat/><ref name=HOM/> due to equal development of different forms.<ref name=Mindat/>  Prism faces are striated horizontally.<ref name=Dana/><ref name=Mindat/>  The mineral also occurs as columnar to fibrous, granular or rounded masses.<ref name=Dana/><ref name=Mindat/><ref name=HOM/>

{{multiple image
 | align     = center
 | direction = horizontal
 | width     = 180
 | image1    = Strontianite-Calcite-Fluorite-274999.jpg|thumb
 | caption1  = Radial aggregate of strontianite
 | image2    = Strontianite-283289.jpg|thumb
 | caption2  = Acicular strontianite in spherical aggregates
 | image3    = Strontianite-ww3c.jpg|thumb
 | caption3  = Strontianite in pseudo-hexagonal crystals
}}