Calcite

  

Calcite on fluorite

  

Calcite on sphalerite

  

Calcite on fluorite with sphalerite on barite

  

 

     

 

  

 

  

 

  

Calcite on fluorite

Origin: Minerva mine #1, Cave in Rock district, Hardin Co., Illinois, U.S.A.

Sample size: 6 x 6.5 x 4 cm (top), 7 x 3 x 6 cm (2nd row), 8.5 x 10.5 x 5 cm (3rd row), 9.5 x 8.5 x 5 cm (4th row), a yellow to purple fluorite crystal hosting yellowish scalenohedral spiky calcite crystals, some of these doubly terminated and to 3.5 cm in length (5th row), 10 x 8.5 x 4 cm (6th row), 9.5 x 5 x 5 cm (7th row), 7.5 x 6 x 3.5 cm (bottom)

 

  

 

  

 

     

 

  

 

  

Calcite on fluorite

Origin: Denton mine, Harris Creek district, Hardin Co., Illinois, U.S.A.

Sample size: 7.5 x 4 x 5 cm (top), 6.5 x 10.5 x 5.5 cm (2nd row), 5 x 4.5 x 3.5 cm (3rd row), 9 x 6.5 x 5.5 cm (4th row), 11.5 x 10.5 x 6.5 cm (bottom)

 

  

  

Origin: Picher Field, Tri-State District, Ottawa Co., Oklahoma, U.S.A.

Sample size: 7.9 x 6.4 x 8.8 cm

 

Dan Weinrich

Dealer in fine mineral specimens