Phasachate or Phassachate: How To spell?
The word Phasachate is misspelled against Phassachate, a noun meaning "The lead-colored agate; -- so called in reference to its color."
Phassachate has double "ss" is mispronounced as "s"Remember double 'SS' in between the strings pha & achate which should not be misspelled with single 'S'
Wrong Spelling:  pha-s-achate  Correct Spelling:  pha-ss-achate 
Explore spell check of Phassachate to spell without errors.