Martin Marietta Quarry (11th Street Quarry), Hickory, Catawba Co., North Carolina, USA

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Allanite, Ankerite : Ca(Fe²⁺ ,Mg,Mn²⁺)(CO₃)₂, Ilmenite : Fe²⁺TiO₃
	Martin Marietta Quarry (11th Street Quarry), Hickory, Catawba Co., North Carolina, USA 12mm allanite crystal in ankerite. The crystal was exposed by dissolving enclosing ankerite with acid. The remaining ankerite develops a rough, hackly surface. The black linear features to the left of the allanite are flat platy ilmenite crystals veiwed nearly edge-on. Some glassy smoky quartz is present on the right side of the picture. From an ...
© 2002, Keith Wood	Photo ID: 4322 View Count: 789
Almandine : Fe²⁺₃Al₂[SiO₄]₃
	Martin Marietta Quarry (11th Street Quarry), Hickory, Catawba Co., North Carolina, USA Trapezohedral almandine garnets in quartz. Larger crystal is 2.3cm top to bottom. Unusual for the locality in having been recovered from a quartz vein rather than an ankerite vein. Also rather large for the location. Collected by, photographed by, and in the collection of Keith Wood.
© 2002, Keith Wood	Photo ID: 4331 View Count: 701
Almandine : Fe²⁺₃Al₂[SiO₄]₃, Ankerite : Ca(Fe²⁺ ,Mg,Mn²⁺)(CO₃)₂
	Martin Marietta Quarry (11th Street Quarry), Hickory, Catawba Co., North Carolina, USA A 1.6mm wide garnet partially exposed in an ankerite vein within biotite schist. The main crystal is 1.6cm wide, but the outlying garnets to the upper left are also portions of the same crystal, suggesting a skeletal or highly embayed habit. Specimen was not etched, but naturally broke to reveal this crystal. Collected by, photographed by, and in ...
© 2002, Keith Wood	Photo ID: 5785 View Count: 621
Ankerite : Ca(Fe²⁺ ,Mg,Mn²⁺)(CO₃)₂, Albite-Anorthite Series
	Martin Marietta Quarry (11th Street Quarry), Hickory, Catawba Co., North Carolina, USA 2.5 x 3.5 mm ankerite crystal on a bed of small plagioclase crystals. Crystal is nearly transparent. Part of a one-time find of exceptional ankerite crystals, unusual for the locality. Collected and photographed by Keith Wood.
© 2002, Keith Wood	Photo ID: 4250 View Count: 718
Ankerite : Ca(Fe²⁺ ,Mg,Mn²⁺)(CO₃)₂, Albite-Anorthite Series
	Martin Marietta Quarry (11th Street Quarry), Hickory, Catawba Co., North Carolina, USA Translucent ankerite crystals to 4.5mm with plagioclase crystals. Ankerite is common at this locality as cleaved masses filling veins but rare as well-formed crystals. Collected by, photographed by, and in the collection of Keith Wood.
© 2002, Keith Wood	Photo ID: 4350 View Count: 668
Apophyllite, Albite-Anorthite Series
	Martin Marietta Quarry (11th Street Quarry), Hickory, Catawba Co., North Carolina, USA Pink apophyllite crystals to 8mm on plagioclase. From a one-time find with kainosite crystals. Coin is 2.5cm wide. Collected by, photographed by, and in the collection of Keith Wood.
© 2002, Keith Wood	Photo ID: 4344 View Count: 718
Apophyllite
	Martin Marietta Quarry (11th Street Quarry), Hickory, Catawba Co., North Carolina, USA 8x5cm specimen of pink apophyllite with crystals to 3.5mm. Collected by, photographed by, and in the collection of Keith Wood.
© 2002, Keith Wood	Photo ID: 5947 View Count: 579
Apophyllite
	Martin Marietta Quarry (11th Street Quarry), Hickory, Catawba Co., North Carolina, USA Detail of pink apopyllite crystals to 3.5mm. Collected by, photographed by, and in the collection of Keith Wood.
© 2002, Keith Wood	Photo ID: 5948 View Count: 530
Calcite : CaCO₃, Chlorite Group
	Martin Marietta Quarry (11th Street Quarry), Hickory, Catawba Co., North Carolina, USA Rhombic calcite crystals with transparent c-face terminations, on chlorite. Field of view is 3.5cm. Collected by, photographed by, and in the collection of Keith Wood
© Keith Wood	Photo ID: 1743 View Count: 586
Calcite : CaCO₃, Stilbite
	Martin Marietta Quarry (11th Street Quarry), Hickory, Catawba Co., North Carolina, USA 5.5x4cm delicate boxwork of platy calcite crystals lined with 2-3mm stilbite crystals. Collected by, photographed by, and in the collection of Keith Wood.
© 2002, Keith Wood	Photo ID: 5788 View Count: 478