Calcite Mineral Specimens from Oxbow, New York

We have many quality calcite, quartz, graphite specimens from Oxbow, New York to add to your mineral specimen collection.       

The calcite mineral specimens that were once produced at the Oxbow roadcut in New York state are sometimes both aesthetic and interesting.  An unusual twin habit, referred to in the literature as "nest twins" or butterfly twins, are rather common at Oxbow.  The specimens included here are outstanding examples of this material.

 

 

OKB-140

OKB-140 Calcite Oxbow, NY Great cluster composed mostly of 2 large penetration twins (about 3.5 cm each) on thin marble matrix. Good translucence and internal rainbows. Matrix has graphite and micro quartz. This is one of the nicest miniatures I have. 48$

 

 

 

 

 

OKB-141

OKB-141 Calcite Oxbow, NY Minature with a typical crystal and a nice butterfly twin. Tiny internal rainbows on this matrix specimen. Matrix has graphite and micro quartz. 22$

 

 

 

 

 

OKB-142

OKB-142 Calcite Oxbow, NY Huge complex penetration twin with some internal rainbows. 45$

 

 

 

 

 

 

OKB-143

OKB-145 Calcite Oxbow, NY Big single crystal with tiny butterfly twin on one side. 20$

 

 

 

 

 

 

OKB-146

OKB-146 Calcite Oxbow, NY Nice crystal on calcite crystal matrix. 20$

 

 

 

 

 

OKA-976

OKA-976 Calcite Oxbow, NY. Big 15 x 10 cm plate of calcites (to 3 cm each) well spread out on marble matrix. These buff colored calcite rhombs stand up well off the matrix. Some visible damage where crystals have been cleaved off. 30$

 

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