Intro to the pillars

Offshore the eastern half of the northern coast is dotted with these pillars. The pillars are not a product of erosion, and they do not have the horizontal stratification so typical of stacks and pillars throughout the world. The structure rather suggests a fast and recent extrusion as part of a geological uplift.

There are more than 1,300 pillars on or off the island. Here are the pillar statistics:
60% of the pillars are offshore
20% of the pillars are located on the coast or close to the sea.
85% of the pillars average 400-600 m. high, 20 m. wide, and less than 200 sq. m. on top
1 pillar has an area of 2 square miles, and it is the most distant from the island
205 pillars have been settled by carving or construction of residences into or on the pillars themselves
146 pillars are more than 800 m. high
12 pillars are slimmest - only 4m. wide and over 110 m. tall

The Two Unique Minerals

Two minerals that are unique to Attland are a combination of other more famous minerals and several metals. These minerals are Cyalith and Kleistonite (Kryptonite), the only minerals known to contain noble gases, deuterium, gold and platinum in lattice structures and significant amounts. King Yarl has discovered their unique non-molecular, homogenous lattice structure.

Since the island of Attland lacks any limestone and chalk, and for that matter, any deposits found in Carboniferous and Cretaceous layers (the Cretaceous layer is considered to be missing on the island), any calcium of the island is locked into the crystalline structure of these two minerals.
Cyalith (blue-turquoise, homogenous rock, sometimes magnetic) contains Sodium, Calcium, Potassium, Magnesium, Aluminum silicates, Cobalt, Nickel, various metals, as well as
-Xenon (free, and as Xenon deuterate and XePtF₆,the only natural platinum fluoride complex of xenon ) which contributes to the cyan-blue tinge of cyalith, deuterides (-OD)_n, heavy water (di-deuterium oxide) in addition to these common minerals:

Hauyne (Na,Ca)₈(AlSiO₄)₆(S,SO₄,Cl)_1-2 ,
Beryl Be₃Al₂(SiO₃)₆
Hibonite, also found in meteorites and in Madagascar, (Ca,Ce)(Al,Ti,Mg)₁₂O₁₉
Silicon Nitride Si₃N₄
the most unique chemical found naturally is Aluminum Carbide Al₄C₃
Zircon ZrSiO₄
yellow Titanite CaTiSiO₅
yellow-blue dots Allanite Ca(Ce,La,Y,Ca)Al₂(Fe²⁺,Fe³⁺)O(SiO₄)(Si₂O₇)(OH)
Kleistonite (or Kryptonite)
is a brown to yellow rock resembling granite, with variations of red in the form of striations, granules, or eyes, sometimes translucent, contains krypton, iridium, gold and platinum, and these minerals which contribute to its yellowish tinge.
tephraxine Mn3Al2(O2)(Si2O7)
_{(the olivine group) which includes tephroite (Mn2SiO4), 
monticellite (CaMgSiO4), and kirschsteinite (CaFeSiO4).
ruby-like Spessartine Mn3Al2(SiO4)3
yellowish Iridolith (similar to synthetic Vasca complex IrCl(CO)[P(C6H5)3]2): IrCl(CO)(PAl3C)
Elsmorite WO3·0.5(H2O)
Argyrodite, silver germanium sulfide Ag8GeS6
Rhodochrosite MnCO3}