Anhydrite is a 9 letter English word. It's valid Words with friends word worth 15 points.
You can make 585 anagrams from letters in anhydrite (adehinrty).
First recorded in 1825-35; anhydr- + -ite1
anhydrite (CaSO4) also occurs in rock masses, and is often associated with rock salt.
These observations appear to show that the change to anhydrite is a very gradual process at temperatures below a red heat.
anhydrite, anhydrous sulphate of calcium, a mineral presenting several varieties of structure and colour.
Conversely gypsum may, under certain conditions, be dehydrated or reduced to anhydrite.