Witherite

  
Origin: Minerva #1 Mine, Hardin County, Illinois, U.S.A.
Sample size: 6.3 x 5.1 x 4.3 cm
 
     
Origin: Pigeon Roost Mine, Montgomery County, Arkansas, U.S.A.
Sample size: 4.0 x 2.5 x 2.3 cm
 
  
Origin: Minerva Mine, Cave in Rock, Hardin Co., Illinois, U.S.A.
Ex. E.G. Tribbey collection
Sample size: 4.1 x 4.1 x 2.7 cm
 
  
Origin: Cave-in-Rock Dist., Hardin Co., Illinois, U.S.A.
Ex. Richard Hauck collection
Sample size: 4.2 x 3.2 x 1.9 cm
 

Photo courtesy of: 

Rob Lavinsky

The Arkenstone

 

  
Witherite with minor fluorite
Origin: Minerva No. 1 Mine, Cave-in-Rock, Cave-in-Rock Sub-District, Illinois - Kentucky Fluorspar District, Hardin Co., Illinois, U.S.A.
Sample size: 3.8 x 3.3 x 4.4 cm
 

Photo courtesy of: 

Dan Weinrich

Dealer in fine mineral specimens

 

  
  
Large 3.8 x 3 cm creamy yellow crystal sitting nice on matrix, fluorescent
Origin: Cave-in-Rock, Hardin Co., Illinois, United States
Ex. Kidwell collection
Sample size: 5 x 5 x 3 cm
 

Photo courtesy of: 

Tom Loomis

Dakota Matrix Minerals

 

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Physical, chemical and crystallographic description Optical properties/Thin sections SEM images TEM images vibrational spectra description IR spectra Raman spectra N-IR spectra F-IR spectra IES spectra