Racine Co., Wisconsin, USA

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Calcite : CaCO₃
	Vulcan Materials Company Quarry, Racine Co., Wisconsin, USA Large cluster of scalenohedral calcite crystals with gray inclusions of microscopic marcasite. The specimen was cleaned in dilute acid to remove surface coating - the crystals are lustrous with rounded edges. Overall size of mineral specimen: 10x7x6 cm. Size of individual crystals: 1-3 cm.
© 2002 John H. Betts	Photo ID: 6186 View Count: 385
Calcite : CaCO₃, Marcasite : FeS₂
	Vulcan Materials Company Quarry, Racine Co., Wisconsin, USA Complex crystal of translucent calcite with gray inclusion of microscopic marcasite crystals defining phantom crystal shapes. Beautiful crystal with many parallel crystal faces. No damage. Overall size of mineral specimen: 5.5x3.5x3 cm. Size of individual crystals: 5.5 cm.
© 2002 John H. Betts	Photo ID: 7080 View Count: 315
Calcite : CaCO₃, Marcasite : FeS₂
	Vulcan Materials Company Quarry, Racine Co., Wisconsin, USA Complex crystal of translucent calcite with gray inclusion of microscopic marcasite crystals defining phantom crystal shapes. Beautiful crystal with many parallel crystal faces. No damage. Overall size of mineral specimen: 5x3.5x3 cm. Size of individual crystals: 5 cm.
© 2002 John H. Betts	Photo ID: 7079 View Count: 299
Calcite : CaCO₃
	Vulcan Materials Company Quarry, Racine Co., Wisconsin, USA 13.9 x 11.3 x 5.1 cm. Finds of collector-quality mineral specimens have been rare in Wisconsin, and this is a large and fine specimen from one of the most exciting in decades. These superb, sharp scalenohedrons of calcite contain phantoms demarcated by minute pyrite (the pyrite coated the crystals during an earlier stage of growth, and then growth ...
© Rob Lavinsky	Photo ID: 120174 View Count: 110
Calcite : CaCO₃
	Vulcan Materials Company Quarry, Racine Co., Wisconsin, USA 8.5cm X 4cm 3cm Good crystal form, no damage in the collection of Danny Jones.
© Danny Jones	Photo ID: 158661 View Count: 101
Calcite : CaCO₃
	Vulcan Materials Company Quarry, Racine Co., Wisconsin, USA Excellent large miniature specimen from the find in the 1990's. Ex K. Ponzio collection. Size: 5.5 x 4 x 4.5 cm - Largest single crystal: 3.5 x 2 cm. Photo and collection - Bill Morgenstern
© Bill Morgenstern - Earth Moods	Photo ID: 239495 View Count: 34
Calcite : CaCO₃, Marcasite : FeS₂
	Vulcan Materials Company Quarry, Racine Co., Wisconsin, USA Dimensions: 4 1/2 x 1 3/4 x 1 1/2 inches. Calcite with marcasite inclusions.
	Photo ID: 246761 View Count: 30
Calcite : CaCO₃, Marcasite : FeS₂
	Vulcan Materials Company Quarry, Racine Co., Wisconsin, USA Dimensions of field of view: 1.5" x 1". Dimensions of entire specimen: 4" x 3" x 3. Calcite with marcasite inclusions (and frosting of calcite).
	Photo ID: 254866 View Count: 19
Marcasite : FeS₂
	Ives Quarry, Racine, Racine Co., Wisconsin, USA Old specimen of sharp, well crystallized marcasite crystals up to 6 mm. This specimen dates to ca.1960 and shows no sign of deterioration. Ex. Magill collection. Overall size of mineral specimen: 34x18x10 mm. Size of individual crystals: 3-6 mm.
© 2001 John H. Betts	Photo ID: 1428 View Count: 508
Marcasite : FeS₂
	Ives Quarry, Racine, Racine Co., Wisconsin, USA Crystals to 1.1 cm
© Dan & Diana Weinrich	Photo ID: 230368 View Count: 40