Presentation :
Names) :
Hawk's eye (quartz variety).
Etymology:
According to the characteristic color and appearance.
Group, Family:
Quartz family (Microcrystalline/Crypt...
Presentation :
Name :
Sodalite or Hackmanite.
Etymology :
Sodalite: According to chemical composition (Thomson, 1811).
Hackmanite: According to the Finnish geologist Victor Ha...
Presentation :
Names) :
Quartz*: Rock crystal.
Etymology:
Quartz: From German Quarz | Rock crystal: From the Greek krystallos = ice coming from the belief of ice hardened foreve...
Presentation :
Names) :
Hematite.
Etymology:
From the Greek haima=blood (Pliny) probably due to the red line color and/or the red color when observed in transmission.
Group...
