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These agates are derived from the Borden Formation
Sphalerite with Quartz
Minerals that form with a radiating star of inclusions between growth sectors are considered to be trapiche minerals
creating a visually striking feature
making these specimens especially appealing to collectors who value unusual optical properties and classic European localities
Faden Quartz from Colombia DS1547 size 7 These agates are derived fromFaden Quartz from Colombia Approx. Dimensions: 2. 25x2x1. 25 inches Approx. Weight: 34. 2 grams Locality: Santander, Colombia Faden quartz from Santander, Colombia, is a rare and highly aesthetic find, distinct from the more common specimens found in Pakistan or Russia. While Colombia is world famous for its "needle" and "muzo habit" high clarity quartz, these Faden (German for "thread") crystals are specialized alpine fissure growth formations
US$ 29.00
US$ 59.00
US$ 99.00
