Hancock, Houghton Co., Michigan, USA

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Calcite : CaCO₃, Copper : Cu
	Quincy Mine, Hancock, Houghton Co., Michigan, USA This is an incredible striated scalenohedron included with a mass of bright copper that grades and thickens into a matrix of copper upon which the crystal rests. Rarely do you find such a combination where the calcite is this clear, or the copper visible in such detail inside, AND where the calcite is pristine and complete all around. This is an ...
© Rob Lavinsky	Photo ID: 37074 View Count: 400
Calcite : CaCO₃
	Quincy Mine, Hancock, Houghton Co., Michigan, USA A classic, old-time, large and lustrous calcite crystal included with and coated by copper from the famous Quincy Mine of Michigan. A very rich in copper calcite crystal with sharp serrated terminations. Ex Cranbrook Institute through the Dan Ehrling Collection. 8.5 x 7.0 x 3.7 cm
© Rob ++++++++	Photo ID: 19693 View Count: 326
Calcite : CaCO₃
	Quincy Mine, Hancock, Houghton Co., Michigan, USA An old-time, classic Michigan Copper Country CABINET specimen of lustrous, transparent and colorless doubly-terminated calcite crystals to 2.4 cm from the famous Quincy Mine. Damage-free. 10.8 x 9.6 x 5.0 cm
© Rob Lavinsky	Photo ID: 23699 View Count: 257
Calcite : CaCO₃, Copper : Cu
	Quincy Mine, Hancock, Houghton Co., Michigan, USA This is a fantastic specimen of any size. The balance of the piece, combined with a superb gemmy Calcite whose slightly silky luster gives it an incredible ‘glow’, gives this an aesthetic appeal beyond reproach. This is one of the few specimens that causes me to draw in my breath every time I look at it. 2.2 x 2.2 x 1.4 cm
© Rob Lavinsky	Photo ID: 39491 View Count: 254
Calcite : CaCO₃, Copper : Cu
	Quincy Mine, Hancock, Houghton Co., Michigan, USA A huge , copper included scalenohedron of calcite with native copper inclusions, clearly visible through the crystal clear calcite covering. A smaller, second crystal sits aesthetically on the matrix and adjacent to the main crystal. 45. 30 x 30 mm. Crystal-Odyssey specimen. gemcrystals@aol.com
© Joseph A. Freilich	Photo ID: 85500 View Count: 192
Calcite : CaCO₃, Copper : Cu
	Quincy Mine, Hancock, Houghton Co., Michigan, USA A 6.5cm X 4cm X 4.5cm grouping of calcite scalenos fully included by copper. Largest calcite 4.5cm.
© Geoffrey Krasnov	Photo ID: 87719 View Count: 184
Calcite : CaCO₃, Copper : Cu
	Quincy Mine, Hancock, Houghton Co., Michigan, USA Calcite with copper inclusions. 4 cm by 5.5 cm. Joseph Polityka collection. Ex. University of Pennsylvania, David Crawford 1979.
© Joseph Polityka	Photo ID: 147458 View Count: 116
Calcite : CaCO₃
	Quincy Mine, Hancock, Houghton Co., Michigan, USA Calcite with copper inclusions. 3.3 x 2.1 x 2 cm
© Kiyoshi Kiikuni	Photo ID: 203137 View Count: 86
Calcite : CaCO₃, Copper : Cu
	Quincy Mine, Hancock, Houghton Co., Michigan, USA 5.5cm x 5cm 3.5cm Scalenohedron Calcite crystals included with and resting on a bed of copper. Matthew Potts collection
© Matthew Potts	Photo ID: 216421 View Count: 84
Calcite : CaCO₃, Copper : Cu
	Quincy Mine, Hancock, Houghton Co., Michigan, USA 4.2 x 3.0 x 2.6 cm. A fine, old-time copper-in-calcite specimen from the historic Quincy Mine of Michigan’s Copper Country. The beautifully upright, 2.7 cm, doubly terminated, very glassy and well-striated crystal rests in front of a larger, diagonal, doubly terminated, 3.5 cm crystal. The calcite crystals are pristine and are richly filled with ...
© Rob Lavinsky	Photo ID: 179428 View Count: 79
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