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Calcite : CaCO3 | |
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Minerva No. 1 Mine, Cave-in-Rock, Cave-in-Rock Sub-District, Illinois - Kentucky Fluorspar District, Hardin Co., Illinois, USA A silky and lustrous example of Calcite from the famed Fluorite mines of Illinois. The best, and my favorite, feature of this large and showy specimen is the way the Calcite has crystallized in the form of many wheat-sheaf-like bundles. Top-quality Calcites from this location are all but impossible to find these days, as the mines have been ... |
| © Russell G. Rizzo | Photo ID: 140558 View Count: 113 |
Calcite : CaCO3, Baryte : BaSO4, Fluorite : CaF2 | |
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Minerva No. 1 Mine, Cave-in-Rock, Cave-in-Rock Sub-District, Illinois - Kentucky Fluorspar District, Hardin Co., Illinois, USA A killer, lustrous Calcite crystal on a matrix of Barite that is sprinkled with tiny cubic Fluorite crystals. specimen size = 7 x 8 x 5.1 cm. |
| © Russell G. Rizzo | Photo ID: 199255 View Count: 54 |
Calcite : CaCO3, Fluorite : CaF2 | |
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Minerva No. 1 Mine, Cave-in-Rock, Cave-in-Rock Sub-District, Illinois - Kentucky Fluorspar District, Hardin Co., Illinois, USA Delicate wheat sheaf bundles on a bit of yellow fluorite. 6cm X 5cm X 3cm |
| © Geoffrey Krasnov | Photo ID: 90634 View Count: 87 |
Calcite : CaCO3 | |
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Minerva No. 1 Mine, Cave-in-Rock, Cave-in-Rock Sub-District, Illinois - Kentucky Fluorspar District, Hardin Co., Illinois, USA A 14.5cm X 5.1cm X 4cm specimen of lenticulated curvilinear crystals. |
| © Geoffrey Krasnov | Photo ID: 226633 View Count: 39 |
Calcite : CaCO3 | |
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Minerva No. 1 Mine, Cave-in-Rock, Cave-in-Rock Sub-District, Illinois - Kentucky Fluorspar District, Hardin Co., Illinois, USA A grouping of pale yellow calcites with a selective deposition of strontian calcite causing a variegated effect. A tiny purple fluorite restsat the top left corner. 8.5cm X 7cm X 3cm |
| © Geoffrey Krasnov | Photo ID: 90637 View Count: 115 |
Calcite : CaCO3 | |
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Minerva No. 1 Mine, Cave-in-Rock, Cave-in-Rock Sub-District, Illinois - Kentucky Fluorspar District, Hardin Co., Illinois, USA Very soft white opaque calcites with matt luster. 6cm X 4cm X 2cm |
| © Geoffrey Krasnov | Photo ID: 90636 View Count: 108 |
Calcite : CaCO3, Fluorite : CaF2 | |
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Minerva No. 1 Mine, Cave-in-Rock, Cave-in-Rock Sub-District, Illinois - Kentucky Fluorspar District, Hardin Co., Illinois, USA Amber tipped scalenohedrons smother a blue and purple partial fluorite. 7.5cm X 6cm X 3.5cm |
| © Geoffrey Krasnov | Photo ID: 91392 View Count: 158 |
Calcite : CaCO3 | |
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Minerva No. 1 Mine, Cave-in-Rock, Cave-in-Rock Sub-District, Illinois - Kentucky Fluorspar District, Hardin Co., Illinois, USA Bundles of radially aligned acicular calcites forming a dense sphere with an open termination resembling a birds nest. 6cm X 5cm X 5cm |
| © Geoffrey Krasnov | Photo ID: 90635 View Count: 93 |
Calcite : CaCO3 | |
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Minerva No. 1 Mine, Cave-in-Rock, Cave-in-Rock Sub-District, Illinois - Kentucky Fluorspar District, Hardin Co., Illinois, USA A lovely cluster of classic parallel growth scalenohedrons with divergent sister crystals. Quite gemmy at the tips and phantomed. 5cm X 8.3cm X 4.5cm with the longest crystal 5.5cm. |
| © photo by Geoff Krasnov | Photo ID: 173744 View Count: 86 |
Calcite : CaCO3, Fluorite : CaF2 | |
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Minerva No. 1 Mine, Cave-in-Rock, Cave-in-Rock Sub-District, Illinois - Kentucky Fluorspar District, Hardin Co., Illinois, USA Divergent prismatic pale yellow gemmy calcites envelope a partial zoned fluorite.4.6cm X 3.5cm X2.7cm |
| © 1 | Photo ID: 155075 View Count: 81 |
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