This section will discuss how speleothems can be categorised according to their shape and form in a cave.
This section expands on the system of classification used by Hill & Forti. Some additional speleothem types and subtypes are included.

Sub-categories are:

• Stalactitic
  • Physics of twisted stalactites in wet areas with low air movement
  • Physics of Shawls
  • Cave turnips
  • Sharks teeth stalactites
• Stalagmitic
  • Monocrystalline projections
  • Smooth vs microgour flowstone
  • Stack of plates stalagmites
• Canopies
  • The physics thereof
• Gours large and small
  • Physics of microgours
• Helictites and capillaries
  • Helictites: Needle, vermiform, branching (H&F) subaqueous, ribbon
  • Rod, saw, wings, wedges, peripatus
  • Heligmites
  • Upturned helictites associated with dolomite
  • Stegamites, shields, tepees and swelling clays
  • Past papers on helictites: "Cataloguing Helictites and Other Capillary-Controlled Speleothems" (paper presented to the 23rd Biennial Conference of the Australian Speleological Federation, December 2000 - January 2001)
  • Anthodites
  • Efect of aragonite on form
• Coralloid
  • White blobs
  • "Stegasaurus Roses"
• Crusts, coatings, surface deposits
  • Moonmilk
  • Fluffy stuff, more fluffy stuff.
  • Aligned moonmilk?
  • "Potatoes" (hemispheroids)