Apophyllite:
Presentation :
Etymology: from the Greek apo, far from, and phyllos, leaf, with reference to its exfoliation when heated.
Chemical formula : KCa 4 Si 8 O 20 (F,OH)...
Apophyllite:
Presentation :
Etymology: from the Greek apo, far from, and phyllos, leaf, with reference to its exfoliation when heated.
Chemical formula : KCa 4 Si 8 O 20 (F,OH)...
Apophyllite:
Presentation :
Etymology: from the Greek apo, far from, and phyllos, leaf, with reference to its exfoliation when heated.
Chemical formula : KCa 4 Si 8 O 20 (F,OH)...
Presentation :
Names) :
Moss agate (variety of chalcedony).
Etymology:
Agate: Named after the Achates River, in southern Sicily. | Moss: Based on the fibrous and green structu...
Presentation :
Name :
Aventurine and Aventurine Quartz: (Variety of Quartz or Quartzite)
Etymology:
From the Italian avventura = chance | NB: "Aventurine", when written alone, d...
Presentation :
Names) :
Tiger's Eye (variety of quartz)
Etymology:
Tiger's Eye: Based on the characteristic color and appearance.
Group, Family:
Quartz Family (Microc...
