Quartz-after-Calcite
specimen number:
3921262
location:
Hwy 61 Roadcut, north of Silver Bay, Minnesota, USA
description:
An open cavity in this matrix lined with crystals of what were once calcite to 2.0 cm in size now replaced by quartz. In good condition. Previous label says that this is one of only two known specimens in the site is now gone under the highway. Collected by a Mr. Hoff of Hoff's Rock Shop.
Size: 14.5 x 9.5 x 9.0 cm (cabinet)
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Related by Mineral (Quartz):
Quartz — Spain
Origin: San Valentin open pit, Sancti Espiritu, La Union, Murcia, Spain
Number: (5003423)
Size: 10.0 x 6.0 x 5.5 cm (cabinet)
Quartz — Spain
Origin: Les Mallorquines, Sils, Girona, Catalonia, Spain
Number: (5002878)
Size: 6.5 x 5.0 x 3.2 cm (small-cabinet)
Quartz — China
Origin: Jinlong hill, Lungchuan Co., Heyuan, Guangdong, China
Number: (4971366)
Size: 14.0 x 11.0 x 4.0 cm (cabinet)